/* ============================================
   CONSOLIDATED STYLE.CSS - VEDRALEARN WEBSITE
   Global styles for all pages
   ============================================ */

/* ============================================
   CSS VARIABLES - GLOBAL & BRAND COLORS
   ============================================ */
:root {
    /* Primary Colors (Global) */
    --color-primary: #0072ff;
    --color-primary-dark: #0056cc;
    --color-secondary: #2563eb;
    --color-secondary-dark: #1d4ed8;
    --color-dark: #0a2540;
    --color-text: #333;
    --color-text-light: #666;
    --color-text-muted: #888;
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --color-bg-lighter: #f3f4f6;
    --color-bg-lightest: #f9fafb;
    --color-border: #e5e7eb;
    --color-success: #10b981;
    --color-warning: #fbbf24;
    
    /* Shadow Styles */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 114, 255, 0.15);
    --shadow-focus: 0 0 0 3px rgba(0, 114, 255, 0.1);
    
    /* Spacing (Mobile-First - 16px base) */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 2.5rem;
    --spacing-3xl: 3rem;
    --spacing-4xl: 4rem;
    --spacing-5xl: 5rem;
    
    /* Font Family */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-weight-regular: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;
    
    /* Font Sizes (Mobile-First, rem-based for scalability) */
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 1.875rem;
    --font-4xl: 2.25rem;
    --font-5xl: 3rem;
    
    /* Responsive Padding (Mobile-First) */
    --padding-section: var(--spacing-lg);
    --padding-container: var(--spacing-lg);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Line Height */
    --line-height-tight: 1.1;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;
}

/* Tablet breakpoint adjustments */
@media (min-width: 640px) {
    :root {
        --padding-section: var(--spacing-2xl);
        --padding-container: var(--spacing-2xl);
        --font-5xl: 3.5rem;
    }
}

/* Desktop breakpoint adjustments */
@media (min-width: 1024px) {
    :root {
        --padding-section: var(--spacing-3xl);
        --padding-container: var(--spacing-3xl);
        --font-5xl: 4rem;
    }
}

/* Large desktop */
@media (min-width: 1280px) {
    :root {
        --font-5xl: 4.5rem;
    }
}

/* ============================================
   BRAND COLOR SCHEMES (Service Pages)
   ============================================ */

/* Web Development - Blue Theme */
body#web-dev-page,
body.web-dev-theme {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --accent-color: #0072ff;
    --bg-gradient1: #e3eafc;
    --bg-gradient2: #f7fafc;
}

/* Python Development - Cyan Theme */
body#python-dev-page,
body.python-dev-theme {
    --primary-color: #06b6d4;
    --primary-dark: #0891b2;
    --accent-color: #06b6d4;
    --bg-gradient1: #cffafe;
    --bg-gradient2: #c7d2fe;
}

/* Java Development - Orange Theme */
body#java-dev-page,
body.java-dev-theme {
    --primary-color: #ea580c;
    --primary-dark: #c2410c;
    --accent-color: #ea580c;
    --bg-gradient1: #fed7aa;
    --bg-gradient2: #fef3c7;
}

/* AI/ML - Purple Theme */
body#aiml-dev-page,
body.aiml-dev-theme {
    --primary-color: #4f46e5;
    --primary-dark: #4338ca;
    --accent-color: #4f46e5;
    --bg-gradient1: #c7d2fe;
    --bg-gradient2: #e0e7ff;
}

/* Cloud Support - Light Blue Theme */
body#cloud-support-page,
body.cloud-support-theme {
    --primary-color: #0284c7;
    --primary-dark: #0369a1;
    --accent-color: #0284c7;
    --bg-gradient1: #bfdbfe;
    --bg-gradient2: #e0f2fe;
}

/* IoT Production - Amber Theme */
body#iot-page,
body.iot-theme {
    --primary-color: #f59e0b;
    --primary-dark: #d97706;
    --accent-color: #f59e0b;
    --bg-gradient1: #fef3c7;
    --bg-gradient2: #fef9e7;
}

/* ============================================
   GLOBAL STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    font-size: var(--font-base);
}

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

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

a {
    text-decoration: none;
    color: inherit;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes slide-up {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slide-in {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ============================================
   HEADER & NAVIGATION (Mobile-First)
   ============================================ */
header {
    background-color: var(--color-bg);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: var(--spacing-sm) 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--padding-container);
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    z-index: 102;
    flex-shrink: 0;
}

.logo-img {
    height: clamp(2rem, 5vw, 3.125rem);
    width: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 8px rgba(0, 114, 255, 0.1);
    animation: float 3s ease-in-out infinite;
}

.logo-text {
    font-size: clamp(0.875rem, 4vw, 1.4rem);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-dark);
    letter-spacing: -0.8px;
    white-space: nowrap;
}

/* Desktop Navigation Menu */
.nav-menu {
    display: none;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
    margin: 0;
    padding: 0;
    flex-grow: 1;
    justify-content: center;
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    text-decoration: none;
    color: var(--color-dark);
    font-weight: var(--font-weight-semibold);
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    transition: color var(--transition-normal);
    display: block;
    position: relative;
    padding-bottom: 0.25rem;
}

.nav-menu a:hover {
    color: var(--color-primary);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-normal);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-buttons {
    display: none;
    gap: var(--spacing-md);
    align-items: center;
    flex-shrink: 0;
}

/* Mobile Menu Button (Hamburger) */
.mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--color-dark);
    font-size: 1.75rem;
    cursor: pointer;
    z-index: 102;
    padding: var(--spacing-sm);
    transition: color var(--transition-normal);
    width: 2.5rem;
    height: 2.5rem;
    flex-shrink: 0;
}

.mobile-menu-btn:hover {
    color: var(--color-primary);
}

/* Mobile Menu Sidebar */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    background: white;
    box-shadow: -2px 0 8px rgba(0, 0, 0, 0.15);
    z-index: 101;
    transition: right var(--transition-normal);
    overflow-y: auto;
    padding-top: 5rem;
}

.mobile-menu.active {
    right: 0;
    display: block;
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.mobile-menu-overlay.active {
    opacity: 1;
    display: block;
}

.mobile-menu ul {
    list-style: none;
    padding: var(--spacing-md);
    margin: 0;
}

.mobile-menu li {
    margin: 0;
}

.mobile-menu a {
    text-decoration: none;
    color: var(--color-dark);
    font-weight: var(--font-weight-semibold);
    font-size: 1.1rem;
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid #f0f0f0;
    transition: all var(--transition-normal);
}

.mobile-menu a:hover {
    background: #f7f7f7;
    color: var(--color-primary);
    padding-left: 2rem;
}

.mobile-menu-buttons {
    padding: var(--spacing-lg);
    border-top: 2px solid #f0f0f0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.mobile-menu-buttons .btn-login,
.mobile-menu-buttons .btn-signup {
    width: 100%;
    padding: 0.8rem;
    font-size: 1rem;
}

/* Show desktop menu on larger screens */
@media (min-width: 768px) {
    .nav-menu {
        display: flex;
    }

    .nav-buttons {
        display: flex;
    }

    .mobile-menu-btn {
        display: none !important;
    }
}

/* ============================================
   BUTTONS (Global)
   ============================================ */
.btn-login,
.btn-signup {
    padding: 0.9rem 2rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: var(--font-weight-bold);
    font-size: 1.2rem;
    transition: all var(--transition-normal);
    text-decoration: none;
    display: inline-block;
    white-space: nowrap;
}

.btn-login {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-login:hover {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 114, 255, 0.3);
}

.btn-signup {
    background-color: var(--color-primary);
    color: white;
    border: none;
    box-shadow: 0 2px 10px rgba(0, 114, 255, 0.2);
}

.btn-signup:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 114, 255, 0.3);
}

.btn-cta {
    padding: 0.6rem 1.2rem;
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-bold);
    transition: all var(--transition-normal);
    display: inline-block;
    text-decoration: none;
}

.btn-cta:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 114, 255, 0.3);
}

/* ============================================
   HERO SECTION (Mobile-First)
   ============================================ */
#hero-section {
    padding: var(--padding-section) var(--padding-container);
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

@media (min-width: 1024px) {
    #hero-section {
        grid-template-columns: 1fr 1fr;
    }
}

.hero {
    background: linear-gradient(135deg, var(--bg-gradient1, #e3eafc) 0%, var(--bg-gradient2, #f7fafc) 100%);
    padding: var(--padding-section) var(--padding-container);
    text-align: center;
    max-width: 1400px;
    margin: 0 auto;
}

@media (min-width: 1024px) {
    .hero {
        text-align: left;
    }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    animation: slide-up 0.8s ease-out;
}

@media (min-width: 1024px) {
    .hero-content {
        text-align: left;
        margin: 0;
    }
}

.hero h1 {
    font-size: clamp(1.3rem, 5vw, 3rem);
    margin-bottom: var(--spacing-lg);
    color: var(--color-dark);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
}

.hero-highlight {
    color: var(--color-primary);
}

.hero p {
    font-size: var(--font-base);
    color: var(--color-text-light);
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    line-height: var(--line-height-relaxed);
}

.hero-text h1 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--color-dark);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-text p {
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-bottom: 1.2rem;
    line-height: 1.6;
}

.hero-cta {
    font-size: 0.75rem;
    padding: 0.6rem 1rem;
    display: inline-block;
    margin-bottom: 1rem;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 100%;
    height: auto;
}

.hero-image img {
    width: 100%;
    max-width: 400px;
    height: auto;
    max-height: 350px;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.animated-svg {
    width: 100%;
    max-width: 280px;
    height: auto;
    animation: float 3s ease-in-out infinite;
}

/* ============================================
   ABOUT SECTION (Mobile-First)
   ============================================ */
#about-section {
    max-width: 1200px;
    margin: -1.5rem auto var(--spacing-lg);
    padding: var(--spacing-lg) var(--padding-container);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 10;
    animation: slide-in 0.8s ease-out;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.about-text h2 {
    font-size: 1.35rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.about-text p {
    font-size: var(--font-base);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-relaxed);
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.about-image img {
    width: 100%;
    max-width: 280px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: float 3.5s ease-in-out infinite;
}

@media (min-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ============================================
   LOGO GALLERY SECTION (Mobile-First)
   ============================================ */
#logo-section-about {
    background: linear-gradient(135deg, #f3f4f6 0%, #f9fafb 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

#logo-section-about h3 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
    margin-bottom: var(--spacing-lg);
    animation: slide-up 0.6s ease-out;
}

#logo-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.logo-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-normal);
    animation: slide-in 0.6s ease-out;
}

.logo-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.logo-card img {
    height: 60px;
    width: auto;
    max-width: 120px;
    border-radius: var(--radius-md);
    animation: float 3s ease-in-out infinite;
}

/* ============================================
   MISSION & VISION SECTION (Mobile-First)
   ============================================ */
#mission-vision {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.mission-card {
    background: linear-gradient(135deg, #e0e7ff 0%, #f3f4f6 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-primary);
    animation: slide-in 0.7s ease-out;
}

.vision-card {
    background: linear-gradient(135deg, #fef3c7 0%, #f3f4f6 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-warning);
    animation: slide-in 0.8s ease-out;
}

.values-card {
    background: linear-gradient(135deg, #c7d2fe 0%, #f3f4f6 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-secondary);
    animation: slide-in 0.9s ease-out;
}

.mission-card h3,
.vision-card h3,
.values-card h3 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
}

.mission-card p,
.vision-card p,
.values-card p {
    font-size: var(--font-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

@media (min-width: 768px) {
    #mission-vision {
        grid-template-columns: repeat(2, 1fr);
    }

    .values-card {
        grid-column: 1 / -1;
    }
}

/* ============================================
   INTERNSHIPS SECTION (Mobile-First)
   ============================================ */
#internships-section {
    padding: var(--spacing-lg) var(--padding-container);
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: clamp(1.3rem, 5vw, 2rem);
    margin-bottom: var(--spacing-lg);
    color: var(--color-dark);
    font-weight: var(--font-weight-bold);
}

.internships-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.internship-card {
    background-color: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}

.internship-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

@media (min-width: 640px) {
    .internships-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .internships-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   LOGIN PAGE STYLES
   ============================================ */
#login-page-body {
    background: linear-gradient(135deg, #e3eafc 0%, #f7fafc 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

#login-container {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    max-width: 100%;
    width: 100%;
    margin: 0;
}

#login-left {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    min-width: auto;
}

#login-left h2 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    font-weight: var(--font-weight-extrabold);
}

#login-left p {
    font-size: 0.85rem;
    line-height: var(--line-height-normal);
    opacity: 0.95;
    margin-bottom: var(--spacing-lg);
}

#login-left ul {
    list-style: none;
}

#login-left li {
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

#login-left li:before {
    content: "✓";
    font-weight: bold;
    font-size: 1rem;
}

#login-right {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    min-width: auto;
}

@media (min-width: 768px) {
    #login-container {
        flex-direction: row;
    }

    #login-left,
    #login-right {
        width: 50%;
    }
}

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

label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
    font-size: 0.8rem;
}

input[type="email"],
input[type="password"],
input[type="text"],
textarea,
select {
    width: 100%;
    padding: 0.7rem 0.8rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    transition: all var(--transition-normal);
    font-family: inherit;
}

input[type="email"]:focus,
input[type="password"]:focus,
input[type="text"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus);
}

.remember-forgot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    font-size: 0.75rem;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.remember-forgot a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-bold);
    transition: color var(--transition-normal);
}

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

.checkbox {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.75rem;
}

input[type="checkbox"] {
    cursor: pointer;
    width: 16px;
    height: 16px;
}

/* ============================================
   GET STARTED PAGE STYLES
   ============================================ */
#getstarted-page-body {
    background-color: white;
    color: var(--color-dark);
}

.nav-buttons {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.nav-buttons .btn-login,
.nav-buttons .btn-signup {
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: var(--font-weight-bold);
    font-size: 0.6rem;
    transition: all var(--transition-normal);
    text-decoration: none;
    display: inline-block;
    border: none;
}

.nav-buttons .btn-login {
    background-color: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
}

.nav-buttons .btn-login:hover {
    background-color: var(--color-primary);
    color: white;
}

.nav-buttons .btn-signup {
    background-color: var(--color-primary);
    color: white;
}

.nav-buttons .btn-signup:hover {
    background-color: var(--color-primary-dark);
}

/* ============================================
   SERVICE CARDS
   ============================================ */
.service-card {
    background-color: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.service-card h3 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
}

.service-card p {
    font-size: var(--font-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

/* ============================================
   BACK LINK
   ============================================ */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-bold);
    font-size: 0.75rem;
    margin-bottom: 1rem;
    transition: color var(--transition-normal);
}

.back-link:hover {
    color: var(--color-primary-dark);
}

/* ============================================
   RESPONSIVE TYPOGRAPHY
   ============================================ */
@media (min-width: 640px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }
}

@media (min-width: 1024px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2.25rem;
    }

    #hero-section {
        grid-template-columns: 1fr 1fr;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--padding-container);
}

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.text-center { text-align: center; }
.text-light { color: var(--color-text-light); }
.text-muted { color: var(--color-text-muted); }

.hidden { display: none; }
.visible { display: block; }

/* ============================================
   FEATURES SECTION (Mobile-First)
   ============================================ */
.features {
    padding: var(--spacing-lg) var(--padding-container);
    max-width: 1400px;
    margin: 0 auto;
    background: white;
}

.features-container {
    width: 100%;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background: linear-gradient(135deg, #f7fafc 0%, #f9fafb 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    animation: slide-up 0.6s ease-out;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
    background: linear-gradient(135deg, #e0e7ff 0%, #f3f4f6 100%);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    animation: float 3s ease-in-out infinite;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
}

.feature-card p {
    font-size: var(--font-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
}

@media (min-width: 640px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   COURSES SECTION (Mobile-First)
   ============================================ */
.courses {
    padding: var(--spacing-lg) var(--padding-container);
    max-width: 1400px;
    margin: 0 auto;
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
}

.courses-container {
    width: 100%;
}

.courses-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.course-card {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.course-header {
    font-size: 2.5rem;
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-lg) 0;
    animation: float 3s ease-in-out infinite;
}

.course-body {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.course-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-md);
    font-size: var(--font-xs);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    width: fit-content;
}

.course-body h3 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
}

.course-meta {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-xs);
    color: var(--color-text-light);
    font-weight: var(--font-weight-semibold);
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.course-body p {
    font-size: var(--font-sm);
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    flex-grow: 1;
    margin-bottom: var(--spacing-lg);
}

.btn-course {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: 0.7rem 1.2rem;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-sm);
    transition: all var(--transition-normal);
    display: block;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    border: none;
}

.btn-course:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 114, 255, 0.3);
}

@media (min-width: 640px) {
    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .courses-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   SECTION CONTAINER & SUBTITLES
   ============================================ */
.section-container {
    padding: var(--spacing-lg) var(--padding-container);
    max-width: 1400px;
    margin: 0 auto;
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-base);
    color: var(--color-text-light);
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    line-height: var(--line-height-relaxed);
    animation: slide-up 0.6s ease-out;
}

/* ============================================
   HERO BUTTONS
   ============================================ */
.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.btn-primary,
.btn-secondary {
    padding: 0.8rem 2rem;
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-bold);
    font-size: 1rem;
    transition: all var(--transition-normal);
    text-decoration: none;
    display: inline-block;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: 0 2px 10px rgba(0, 114, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 114, 255, 0.3);
}

.btn-secondary {
    background: white;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 114, 255, 0.3);
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--spacing-3xl) var(--padding-container);
    text-align: center;
}

.cta-container {
    max-width: 700px;
    margin: 0 auto;
    color: white;
    animation: slide-up 0.8s ease-out;
}

.cta h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-weight-bold);
}

.cta p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-relaxed);
    opacity: 0.95;
}

.cta .btn-cta {
    background: white;
    color: var(--color-primary);
    padding: 0.8rem 2rem;
    font-weight: var(--font-weight-bold);
}

.cta .btn-cta:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* ============================================
   TESTIMONIALS SECTION (Mobile-First)
   ============================================ */
.testimonials {
    padding: var(--spacing-lg) var(--padding-container);
    max-width: 1400px;
    margin: 0 auto;
    background: #f9fafb;
}

.testimonials-container {
    width: 100%;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.testimonial-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
    animation: slide-up 0.7s ease-out;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.testimonial-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-md);
    border: 3px solid var(--color-primary);
    object-fit: cover;
    animation: float 3s ease-in-out infinite;
}

.testimonial-card .stars {
    color: #fbbf24;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.testimonial-author {
    font-size: 1rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-dark);
    margin-bottom: 0.3rem;
}

.testimonial-role {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

@media (min-width: 640px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ============================================
   FOOTER STYLES (Mobile-First)
   ============================================ */
footer {
    background: var(--color-dark);
    color: white;
    padding: var(--spacing-3xl) var(--padding-container) var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section {
    animation: slide-up 0.6s ease-out;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    text-decoration: none;
    color: #d1d5db;
    font-size: 0.95rem;
    transition: color var(--transition-normal);
}

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

.footer-bottom {
    text-align: center;
    border-top: 1px solid #444;
    padding-top: var(--spacing-lg);
    color: #9ca3af;
    font-size: 0.9rem;
    line-height: var(--line-height-normal);
}

@media (min-width: 640px) {
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-container {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   CONTACT SECTION STYLES
   ============================================ */
.contact-card {
    max-width: 600px;
    margin: 3rem auto;
    background: white;
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: 0 4px 20px rgba(0, 114, 255, 0.1);
    border: 2px solid #dbeafe;
    text-align: center;
    animation: slide-up 0.8s ease-out;
}

.contact-card h3 {
    font-size: 1.3rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.contact-email {
    display: block;
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color var(--transition-normal);
}

.contact-email:hover {
    color: var(--color-primary-dark);
}

.contact-response {
    text-align: center;
    color: #666;
    font-size: 0.9rem;
}

/* ============================================
   SERVICE ICON & SERVICES SECTION
   ============================================ */
.service-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    display: block;
    animation: float 3s ease-in-out infinite;
}

.services-section {
    background: #f9fafb;
    padding: var(--spacing-3xl) var(--padding-container);
}