/*
 * EXONIQ Website - Main Stylesheet
 * Modern, Professional, Responsive Design
 */

/* ============================================
   CSS Variables & Root Styles
   ============================================ */
:root {
    /* Colors */
    --primary-color: #0066FF;
    --primary-dark: #0052CC;
    --primary-light: #3385FF;
    --secondary-color: #00D4AA;
    --accent-color: #FF6B35;
    
    --dark-900: #0A0E27;
    --dark-800: #151B3D;
    --dark-700: #1E2749;
    --dark-600: #2A3558;
    
    --gray-900: #1A1D29;
    --gray-800: #2C3142;
    --gray-700: #3F4558;
    --gray-600: #5A6176;
    --gray-500: #767D94;
    --gray-400: #9EA5B8;
    --gray-300: #C5CAD5;
    --gray-200: #E5E8ED;
    --gray-100: #F5F7FA;
    
    --white: #FFFFFF;
    --black: #000000;
    
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Space Grotesk', var(--font-primary);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Layout */
    --container-width: 1280px;
    --header-height: 80px;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: linear-gradient(180deg, #F8FAFF 0%, #FFFFFF 50%, #F5F9FF 100%);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark-900);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.75rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ============================================
   Utilities
   ============================================ */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* -----------------------------------------------------------
   Bölüm arka planları + bölümler arası dalgalı soft geçişler
   ----------------------------------------------------------- */
.section {
    --section-color: #FFFFFF;
    padding: var(--spacing-3xl) 0;
    position: relative;
    /* not: overflow:hidden VERME — alt dalga divider taşabilmeli */
}

/* Bir bölümden diğerine geçişte üst kısımda ekstra boşluk
   böylece taşan dalga divider içerikle çakışmaz */
.section + .section,
.hero-modern + .section {
    padding-top: calc(var(--spacing-3xl) + 2rem);
}

/* Her bölümün altında, kendi rengini bir alttaki bölüme doğru
   yumuşak bir dalga şeklinde uzatan SVG mask divider. */
.section::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 100px;
    background-color: var(--section-color);
    -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 100' preserveAspectRatio='none'><path d='M0,0 C240,70 480,100 720,60 C960,20 1200,0 1440,40 L1440,100 L0,100 Z' fill='black'/></svg>") no-repeat center bottom / 100% 100%;
            mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 100' preserveAspectRatio='none'><path d='M0,0 C240,70 480,100 720,60 C960,20 1200,0 1440,40 L1440,100 L0,100 Z' fill='black'/></svg>") no-repeat center bottom / 100% 100%;
    transform: translateY(99%);
    pointer-events: none;
    z-index: 4;
}

/* Son bölümün (footer'dan hemen önce) dalga divider'ı görünmesin */
.section:last-of-type::after {
    display: none;
}

.section-bg-gradient-1 {
    --section-color: #F0F7FF;
    background: linear-gradient(135deg, #F0F7FF 0%, #FEFAFF 50%, #F0FFF9 100%);
    position: relative;
}

.section-bg-gradient-1::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 102, 255, 0.03), transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(0, 212, 170, 0.03), transparent 50%);
}

.section-bg-gradient-2 {
    --section-color: #FFF9F0;
    background: linear-gradient(135deg, #FFF9F0 0%, #F0F9FF 100%);
    position: relative;
}

.section-bg-gradient-2::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 70% 30%, rgba(255, 107, 53, 0.04), transparent 60%),
                radial-gradient(circle at 30% 70%, rgba(0, 102, 255, 0.04), transparent 60%);
}

.section-bg-gradient-3 {
    --section-color: #FEFAFF;
    background: linear-gradient(180deg, #FEFAFF 0%, #F0FFF9 100%);
    position: relative;
}

.section-bg-gradient-3::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(40% 35% at 15% 30%, rgba(120, 100, 255, 0.05), transparent 70%),
        radial-gradient(45% 40% at 85% 70%, rgba(0, 212, 170, 0.05), transparent 70%);
}

.section-bg-mesh {
    --section-color: #FAFCFF;
    background: 
        radial-gradient(at 0% 0%, rgba(0, 102, 255, 0.08) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(0, 212, 170, 0.06) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(255, 107, 53, 0.05) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(0, 102, 255, 0.06) 0px, transparent 50%),
        linear-gradient(180deg, #FAFCFF 0%, #FFFFFF 100%);
}

.section-bg-soft {
    --section-color: #FFFFFF;
    background: linear-gradient(135deg, 
        rgba(0, 102, 255, 0.02) 0%, 
        rgba(255, 255, 255, 1) 25%, 
        rgba(0, 212, 170, 0.02) 50%,
        rgba(255, 255, 255, 1) 75%,
        rgba(0, 102, 255, 0.02) 100%
    );
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto var(--spacing-2xl);
}

.desktop-only {
    display: block;
}

.mobile-only {
    display: none;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    font-weight: 600;
    font-size: 1rem;
    line-height: 1;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 4px 16px rgba(0, 102, 255, 0.35);
    position: relative;
    overflow: hidden;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 102, 255, 0.45);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-outline {
    background: transparent;
    color: var(--gray-700);
    border-color: var(--gray-300);
}

.btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.btn-small {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all var(--transition-base);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header.scrolled {
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 1);
    border-bottom-color: var(--gray-200);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.navbar-brand .logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.875rem;
    font-weight: 800;
    color: var(--dark-900);
    letter-spacing: -0.03em;
    transition: all var(--transition-fast);
}

.logo:hover .logo-text {
    transform: scale(1.05);
}

.logo-accent {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.625rem 1.125rem;
    color: var(--dark-900);
    font-weight: 600;
    font-size: 0.9375rem;
    letter-spacing: -0.01em;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width var(--transition-base);
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 80%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background: rgba(0, 102, 255, 0.05);
}

.nav-link i {
    font-size: 0.625rem;
    transition: transform var(--transition-fast);
    opacity: 0.7;
}

.nav-link:hover i {
    opacity: 1;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.75rem);
    left: 0;
    min-width: 280px;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    padding: 0.75rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: 100;
    border: 1px solid var(--gray-200);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown:hover .nav-link i {
    transform: rotate(180deg);
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.125rem;
    color: var(--dark-900);
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
}

.dropdown-menu a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
    transition: height var(--transition-base);
}

.dropdown-menu a:hover::before {
    height: 70%;
}

.dropdown-menu a:hover {
    background: linear-gradient(90deg, rgba(0, 102, 255, 0.08), transparent);
    color: var(--primary-color);
    padding-left: 1.5rem;
}

/* Language Switcher */
.language-switcher {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.625rem 1.125rem;
    color: var(--dark-900);
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: var(--radius-lg);
    border: 2px solid var(--gray-200);
    transition: all var(--transition-base);
    cursor: pointer;
    background: var(--white);
}

.lang-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.15);
}

.lang-btn i.fa-globe {
    font-size: 1rem;
}

.lang-btn i.fa-chevron-down {
    font-size: 0.625rem;
    transition: transform var(--transition-fast);
    opacity: 0.6;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 0;
    min-width: 170px;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    padding: 0.75rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: 100;
    border: 1px solid var(--gray-200);
}

.lang-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--dark-900);
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
}

.lang-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    opacity: 0;
    border-radius: var(--radius-lg);
    transition: opacity var(--transition-fast);
    z-index: -1;
}

.lang-option:hover {
    color: var(--primary-color);
    transform: translateX(4px);
}

.lang-option.active {
    color: var(--white);
}

.lang-option.active::before {
    opacity: 1;
}

.lang-option .flag {
    font-size: 1.375rem;
}

/* Navbar Actions */
.navbar-actions {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

/* Mobile Menu Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 0.375rem;
    width: 30px;
    height: 24px;
    padding: 0;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--dark-900);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   Modern Hero Section
   ============================================ */
.hero-modern {
    position: relative;
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    padding: calc(var(--header-height) + 3rem) 0 6rem;
    overflow: hidden;
    background: linear-gradient(135deg, #0A0E27 0%, #151B3D 50%, #1E2749 100%);
}

/* Hero altında dalga geçişi: koyu hero rengini soft bir dalga ile alttaki bölüme uzatır */
.hero-modern::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 120px;
    background-color: #1E2749;
    -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 120' preserveAspectRatio='none'><path d='M0,0 C240,90 480,120 720,80 C960,40 1200,0 1440,50 L1440,120 L0,120 Z' fill='black'/></svg>") no-repeat center bottom / 100% 100%;
            mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 120' preserveAspectRatio='none'><path d='M0,0 C240,90 480,120 720,80 C960,40 1200,0 1440,50 L1440,120 L0,120 Z' fill='black'/></svg>") no-repeat center bottom / 100% 100%;
    transform: translateY(99%);
    pointer-events: none;
    z-index: 5;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top right, rgba(0, 102, 255, 0.15), transparent 50%),
                radial-gradient(ellipse at bottom left, rgba(0, 212, 170, 0.15), transparent 50%);
}

/* Hero arka planı: kare grid yerine yumuşak akan aurora blob'lar */
.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    background:
        radial-gradient(60% 50% at 20% 25%, rgba(0, 102, 255, 0.25), transparent 65%),
        radial-gradient(50% 45% at 80% 30%, rgba(0, 212, 170, 0.22), transparent 70%),
        radial-gradient(55% 50% at 50% 90%, rgba(120, 100, 255, 0.18), transparent 70%);
    filter: blur(8px);
    animation: auroraDrift 18s ease-in-out infinite alternate;
}

.hero-grid::before,
.hero-grid::after {
    content: '';
    position: absolute;
    width: 60vw;
    height: 60vw;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.55;
    pointer-events: none;
}

.hero-grid::before {
    top: -15%;
    left: -10%;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.45), transparent 65%);
    animation: auroraFloatA 14s ease-in-out infinite alternate;
}

.hero-grid::after {
    bottom: -20%;
    right: -10%;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.40), transparent 65%);
    animation: auroraFloatB 16s ease-in-out infinite alternate;
}

@keyframes auroraDrift {
    0%   { transform: translate3d(0, 0, 0) scale(1); }
    50%  { transform: translate3d(-2%, 1%, 0) scale(1.04); }
    100% { transform: translate3d(2%, -1%, 0) scale(1); }
}
@keyframes auroraFloatA {
    0%   { transform: translate(0, 0); }
    100% { transform: translate(10%, 6%); }
}
@keyframes auroraFloatB {
    0%   { transform: translate(0, 0); }
    100% { transform: translate(-8%, -5%); }
}

.hero-content-modern {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: rgba(0, 102, 255, 0.1);
    border: 1px solid rgba(0, 102, 255, 0.3);
    border-radius: var(--radius-full);
    color: var(--primary-light);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.hero-badge i {
    color: var(--secondary-color);
}

.hero-title-modern {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: white;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero-title-modern::after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 1.5rem auto 0;
    border-radius: var(--radius-full);
}

.hero-subtitle-modern {
    font-size: 1.375rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item-mini {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-light);
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

.hero-cta-modern {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn-modern {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-modern:hover::before {
    left: 100%;
}

.btn-modern-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.4);
}

.btn-modern-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 102, 255, 0.5);
}

.btn-modern-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-modern-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.hero-tech-stack {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.tech-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.tech-logos {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.tech-item {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    backdrop-filter: blur(5px);
}

.tech-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-light);
    color: var(--primary-light);
    transform: translateY(-2px);
}

/* ============================================
   Cards & Grid
   ============================================ */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06), 
                0 0 1px rgba(0, 0, 0, 0.05);
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.8);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.02), rgba(0, 212, 170, 0.02));
    opacity: 0;
    border-radius: var(--radius-2xl);
    transition: opacity var(--transition-base);
    z-index: -1;
}

.card:hover::before {
    opacity: 1;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12), 
                0 0 1px rgba(0, 102, 255, 0.3);
    border-color: rgba(0, 102, 255, 0.2);
}

.card-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    color: var(--white);
    border-radius: var(--radius-lg);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--dark-900);
}

.card-desc {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.card-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.tech-tag {
    padding: 0.375rem 0.75rem;
    background: var(--gray-100);
    color: var(--gray-700);
    font-size: 0.8125rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.tech-tag:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* ============================================
   Stats / Trust Section
   ============================================ */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(0, 102, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.05), rgba(0, 212, 170, 0.05));
    z-index: -1;
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 4px rgba(0, 102, 255, 0.2));
}

.stat-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark-900);
    margin-bottom: 0;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--dark-900);
    color: var(--gray-400);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    margin-bottom: var(--spacing-md);
}

.footer-logo .logo-text {
    font-size: 1.5rem;
    color: var(--white);
}

.footer-desc {
    color: var(--gray-400);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark-700);
    color: var(--white);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-4px);
}

.footer-title {
    color: var(--white);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--gray-400);
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: var(--spacing-xs);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-contact li {
    display: flex;
    gap: var(--spacing-md);
    color: var(--gray-400);
}

.footer-contact i {
    color: var(--primary-light);
    margin-top: 0.25rem;
}

.footer-contact a {
    color: var(--gray-400);
}

.footer-contact a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--dark-700);
    text-align: center;
    position: relative;
}

.copyright {
    color: var(--gray-500);
    font-size: 0.9375rem;
}

.admin-link {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary-light);
    border-radius: 8px;
    transition: all var(--transition-base);
    opacity: 0.5;
}

.admin-link:hover {
    opacity: 1;
    background: var(--primary-color);
    color: var(--white);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.4);
}

/* ============================================
   Flash Messages
   ============================================ */
.flash-message {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    z-index: 999;
    padding: var(--spacing-md) 0;
    animation: slideDown var(--transition-base);
}

.flash-success {
    background: var(--success);
}

.flash-error {
    background: var(--error);
}

.flash-warning {
    background: var(--warning);
}

.flash-info {
    background: var(--info);
}

.flash-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--white);
}

.flash-content i {
    font-size: 1.25rem;
}

.flash-close {
    margin-left: auto;
    color: var(--white);
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.flash-close:hover {
    opacity: 1;
}

/* ============================================
   Scroll to Top Button
   ============================================ */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 998;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   Blog Styles
   ============================================ */
.blog-filters {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    padding: 1rem;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.filter-item {
    position: relative;
    padding: 0.75rem 1.5rem;
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-full);
    color: var(--dark-900);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
    overflow: hidden;
    z-index: 1;
}

.filter-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: -1;
}

.filter-item:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.2);
}

.filter-item.active {
    color: var(--white);
    border-color: var(--primary-color);
    box-shadow: 0 4px 16px rgba(0, 102, 255, 0.4);
}

.filter-item.active::before {
    opacity: 1;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
}

.blog-card {
    position: relative;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08),
                0 0 1px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.9);
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.blog-card:hover::before {
    transform: scaleX(1);
}

.blog-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-light);
}

.blog-card-image {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.1);
}

.blog-card-category {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.4);
    z-index: 1;
}

.blog-card-date {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 0.375rem;
    z-index: 1;
}

.blog-card-date i {
    color: var(--primary-color);
    font-size: 0.75rem;
}

.blog-card-content {
    padding: 2rem 1.75rem;
}

.blog-card-title {
    font-size: 1.375rem;
    line-height: 1.4;
    margin-bottom: 1rem;
    color: var(--dark-900);
    font-weight: 700;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-fast);
}

.blog-card:hover .blog-card-title {
    color: var(--primary-color);
}

.blog-card-excerpt {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.25rem;
    border-top: 2px solid var(--gray-100);
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.blog-meta-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
}

.blog-meta-item i {
    color: var(--primary-color);
    font-size: 0.875rem;
}

.blog-read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

.blog-read-more:hover {
    transform: translateX(4px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.4);
}

.blog-read-more i {
    transition: transform var(--transition-fast);
}

.blog-read-more:hover i {
    transform: translateX(4px);
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    margin-top: 4rem;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.pagination-btn {
    position: relative;
    min-width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 0.875rem;
    background: var(--gray-100);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    color: var(--gray-700);
    font-weight: 700;
    font-size: 1rem;
    transition: all var(--transition-base);
    overflow: hidden;
}

.pagination-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: -1;
}

.pagination-btn:hover {
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.3);
}

.pagination-btn:hover::before {
    opacity: 1;
}

.pagination-btn.active {
    color: var(--white);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.4);
}

.pagination-btn.active::before {
    opacity: 1;
}

.pagination-dots {
    color: var(--gray-400);
    padding: 0 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
}

/* Blog Detail Page */
.blog-detail-header {
    padding: calc(var(--header-height) + 3rem) 0 2rem;
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
}

.blog-detail-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-700);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.back-link:hover {
    color: var(--primary-color);
    transform: translateX(-4px);
}

.category-badge {
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
}

.blog-detail-title {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    max-width: 900px;
}

.blog-detail-info {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-600);
    font-size: 0.9375rem;
}

.info-item i {
    color: var(--primary-color);
}

.blog-detail-tags {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.tag {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--gray-700);
    transition: all var(--transition-base);
    border: 1px solid var(--gray-300);
    cursor: pointer;
}

.tag:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

.blog-featured-image {
    margin-bottom: 4rem;
}

.blog-featured-image img {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
}

.blog-detail-content {
    padding: 2rem 0 4rem;
}

.blog-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 4rem;
    max-width: 1280px;
    margin: 0 auto;
}

.blog-main-content {
    max-width: 800px;
}

.blog-main-content h2 {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.blog-main-content h3 {
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--primary-dark);
}

.blog-main-content h4 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.blog-main-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1.0625rem;
}

.blog-main-content ul,
.blog-main-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
    line-height: 1.8;
}

.blog-main-content ul {
    list-style: disc;
}

.blog-main-content ol {
    list-style: decimal;
}

.blog-main-content li {
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.blog-main-content pre {
    background: var(--dark-900);
    color: var(--gray-100);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
    line-height: 1.6;
}

.blog-main-content code {
    background: var(--gray-200);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
    font-family: 'Courier New', monospace;
}

.blog-main-content pre code {
    background: transparent;
    padding: 0;
}

.blog-main-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
}

.blog-main-content th,
.blog-main-content td {
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    text-align: left;
}

.blog-main-content th {
    background: var(--gray-100);
    font-weight: 600;
}

.blog-share {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid var(--gray-200);
}

.blog-share h4 {
    margin-bottom: 1rem;
}

.share-buttons {
    display: flex;
    gap: 1rem;
}

.share-btn {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--white);
    font-size: 1.25rem;
    transition: all var(--transition-base);
}

.share-btn.twitter {
    background: #1DA1F2;
}

.share-btn.linkedin {
    background: #0077B5;
}

.share-btn.facebook {
    background: #1877F2;
}

.share-btn.email {
    background: var(--gray-700);
}

.share-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Blog Sidebar */
.blog-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
    height: fit-content;
}

.sidebar-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: 2rem;
    border: 1px solid var(--gray-200);
    transition: all var(--transition-base);
}

.sidebar-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border-color: var(--primary-light);
}

.sidebar-card h4 {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 3px solid var(--primary-color);
    color: var(--dark-900);
    font-size: 1.25rem;
    position: relative;
}

.sidebar-card h4::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--secondary-color);
}

.author-card {
    text-align: center;
}

.author-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border-radius: 50%;
    font-size: 3rem;
    color: var(--primary-color);
}

.author-card h5 {
    margin-bottom: 0.5rem;
}

.author-card p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    line-height: 1.6;
}

.category-list {
    list-style: none;
    padding: 0;
}

.category-list li {
    margin-bottom: 0.75rem;
}

.category-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    color: var(--gray-700);
    transition: all var(--transition-fast);
}

.category-list a:hover {
    background: var(--gray-100);
    color: var(--primary-color);
    padding-left: 1rem;
}

.category-list .count {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--dark-900);
}

.form-control {
    width: 100%;
    padding: 0.875rem 1.25rem;
    font-size: 1rem;
    color: var(--dark-900);
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 102, 255, 0.1);
}

.form-control::placeholder {
    color: var(--gray-400);
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
}

/* ============================================
   Animations
   ============================================ */
@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    :root {
        --spacing-3xl: 4rem;
        --spacing-2xl: 3rem;
    }
    
    h1 { font-size: 2.75rem; }
    h2 { font-size: 2.25rem; }
    h3 { font-size: 1.75rem; }
    
    .hero-title-modern {
        font-size: 3rem;
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-3xl: 3rem;
        --spacing-2xl: 2rem;
        --header-height: 70px;
    }
    
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    h3 { font-size: 1.5rem; }
    
    .desktop-only {
        display: none !important;
    }
    
    .mobile-only {
        display: block;
    }
    
    /* Mobile Navigation */
    .mobile-toggle {
        display: flex;
    }
    
    .navbar-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-xl);
        transform: translateX(100%);
        transition: transform var(--transition-base);
        overflow-y: auto;
    }
    
    .navbar-menu.active {
        transform: translateX(0);
    }
    
    .nav-list {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--spacing-md);
        justify-content: space-between;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--gray-100);
        margin-top: var(--spacing-xs);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
    }
    
    .dropdown.active .dropdown-menu {
        max-height: 500px;
    }
    
    /* Modern Hero Mobile */
    .hero-title-modern {
        font-size: 2.25rem;
    }
    
    .hero-subtitle-modern {
        font-size: 1.125rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
        padding: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .hero-cta-modern {
        flex-direction: column;
    }
    
    .btn-modern {
        width: 100%;
        justify-content: center;
    }
    
    .tech-logos {
        gap: 0.75rem;
    }
    
    .tech-item {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .admin-link {
        position: static;
        margin: 1rem auto 0;
    }
    
    /* Blog Responsive */
    .blog-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .blog-card {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .blog-card-image {
        height: 200px;
    }
    
    .blog-card-content {
        padding: 1.5rem;
    }
    
    .blog-card-title {
        font-size: 1.25rem;
    }
    
    .blog-card-footer {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .blog-read-more {
        width: 100%;
        justify-content: center;
    }
    
    .blog-filters {
        padding: 0.75rem;
        gap: 0.5rem;
    }
    
    .pagination {
        padding: 1rem;
        gap: 0.5rem;
    }
    
    .pagination-btn {
        min-width: 40px;
        height: 40px;
        font-size: 0.9375rem;
    }
    
    .blog-content-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .blog-sidebar {
        position: static;
    }
    
    .blog-detail-title {
        font-size: 2rem;
    }
    
    .blog-detail-info {
        gap: 1rem;
    }
    
    .share-buttons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    h1 { font-size: 1.875rem; }
    h2 { font-size: 1.625rem; }
    
    .hero-title-modern {
        font-size: 1.875rem;
    }
    
    .hero-subtitle-modern {
        font-size: 1rem;
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9375rem;
    }
    
    .btn-modern {
        padding: 0.875rem 1.5rem;
        font-size: 0.9375rem;
    }
    
    /* Blog Responsive */
    .blog-detail-title {
        font-size: 1.75rem;
    }
    
    .blog-card-image {
        height: 180px;
    }
    
    .blog-card-content {
        padding: 1.25rem;
    }
    
    .blog-card-title {
        font-size: 1.125rem;
    }
    
    .blog-card-category {
        padding: 0.375rem 0.875rem;
        font-size: 0.75rem;
    }
    
    .blog-card-date {
        padding: 0.375rem 0.75rem;
        font-size: 0.8125rem;
    }
    
    .blog-filters {
        gap: 0.5rem;
        padding: 0.5rem;
    }
    
    .filter-item {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .pagination {
        gap: 0.375rem;
        padding: 0.75rem;
    }
    
    .pagination-btn {
        min-width: 36px;
        height: 36px;
        font-size: 0.875rem;
    }
}