/* 
   Clube de Idiomas v2 - Premium Modern Redesign
   Enhanced Design System with Animations
*/

/* ===========================
   CSS Variables / Design Tokens
   =========================== */
:root {
    /* Colors */
    --primary-blue: #1F6FEB;
    --primary-hover: #1a5fd0;
    --primary-light: #3d85f0;
    --bg-light-blue: #EAF2FF;
    --bg-subtle: #F8FAFC;
    --navy-dark: #0B2A4A;
    --navy-light: #153d66;
    --text-dark: #0B1B2B;
    --text-body: #475569;
    --text-muted: #64748b;
    --border-soft: #E6EAF0;
    --border-hover: #CBD5E1;
    --white: #FFFFFF;
    --accent-yellow: #FBBF24;
    --accent-orange: #F97316;
    --success-green: #10B981;
    --success-light: #D1FAE5;

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3rem;

    /* Spacing (8px rhythm) */
    --spacing-1: 4px;
    --spacing-2: 8px;
    --spacing-3: 12px;
    --spacing-4: 16px;
    --spacing-5: 20px;
    --spacing-6: 24px;
    --spacing-8: 32px;
    --spacing-10: 40px;
    --spacing-12: 48px;
    --spacing-16: 64px;
    --spacing-20: 80px;
    --spacing-24: 96px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 999px;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 30px -5px rgba(0, 0, 0, 0.12), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-blue: 0 10px 30px -5px rgba(31, 111, 235, 0.3);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.06);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-smooth: 300ms ease;
    --transition-bounce: 400ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--text-body);
    background-color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: var(--spacing-4);
    font-weight: 600;
    letter-spacing: -0.02em;
}

h1 {
    font-size: var(--text-5xl);
    font-weight: 700;
}

h2 {
    font-size: var(--text-4xl);
}

h3 {
    font-size: var(--text-2xl);
}

h4 {
    font-size: var(--text-xl);
}

p {
    margin-bottom: var(--spacing-4);
    line-height: 1.7;
}

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

ul {
    list-style: none;
}

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

/* ===========================
   Layout & Container
   =========================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

.section {
    padding: var(--spacing-20) 0;
}

.section-sm {
    padding: var(--spacing-16) 0;
}

/* ===========================
   Utility Classes
   =========================== */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-primary {
    color: var(--primary-blue);
}

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

.text-white {
    color: var(--white);
}

.bg-light {
    background-color: var(--bg-light-blue);
}

.bg-subtle {
    background-color: var(--bg-subtle);
}

.bg-navy {
    background-color: var(--navy-dark);
}

.font-medium {
    font-weight: 500;
}

.font-semibold {
    font-weight: 600;
}

.font-bold {
    font-weight: 700;
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-6);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-5 {
    grid-template-columns: repeat(5, 1fr);
}

/* Flex Utilities */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.items-start {
    align-items: flex-start;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-2 {
    gap: var(--spacing-2);
}

.gap-3 {
    gap: var(--spacing-3);
}

.gap-4 {
    gap: var(--spacing-4);
}

.gap-6 {
    gap: var(--spacing-6);
}

.gap-8 {
    gap: var(--spacing-8);
}

/* Visibility */
.hidden {
    display: none !important;
}

/* ===========================
   Animations
   =========================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translate3d(0, 0, 0);
    }

    50% {
        transform: translate3d(0, -10px, 0);
    }
}

/* Reveal Animation Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Stagger children animation */
.stagger-children>* {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.stagger-children.visible>*:nth-child(1) {
    transition-delay: 0.1s;
}

.stagger-children.visible>*:nth-child(2) {
    transition-delay: 0.2s;
}

.stagger-children.visible>*:nth-child(3) {
    transition-delay: 0.3s;
}

.stagger-children.visible>*:nth-child(4) {
    transition-delay: 0.4s;
}

.stagger-children.visible>*:nth-child(5) {
    transition-delay: 0.5s;
}

.stagger-children.visible>*:nth-child(6) {
    transition-delay: 0.6s;
}

.stagger-children.visible>* {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: 14px 28px;
    font-weight: 600;
    font-family: var(--font-heading);
    font-size: var(--text-base);
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-smooth);
    white-space: nowrap;
}

.btn-sm {
    padding: 10px 20px;
    font-size: var(--text-sm);
}

.btn-lg {
    padding: 18px 36px;
    font-size: var(--text-lg);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-hover) 100%);
    color: var(--white);
    box-shadow: var(--shadow-md), var(--shadow-blue);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), 0 15px 35px -5px rgba(31, 111, 235, 0.4);
}

.btn-primary:active {
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background-color: #dce8ff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
    background-color: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

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

.btn-white:hover {
    background-color: var(--bg-light-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-whatsapp {
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: var(--white);
}

.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg), 0 10px 30px -5px rgba(37, 211, 102, 0.4);
}

/* ===========================
   Header & Navigation
   =========================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    height: 90px;
    /* Fixed height constraint */
    padding: 0;
    display: flex;
    align-items: center;
    overflow: visible;
    transition: all var(--transition-smooth);
}

.header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-smooth);
}

.header.scrolled::before {
    background: rgba(255, 255, 255, 0.95);
    border-bottom-color: var(--border-soft);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.logo {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--primary-blue);
    display: block;
    height: 70px;
    width: 250px;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.02);
}

.logo i {
    font-size: 1.75rem;
}

.logo img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    height: 210px !important;
    /* Zoom in to crop whitespace */
    max-height: none !important;
    width: auto !important;
    max-width: none !important;
    display: block;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-8);
}

.nav-link {
    font-weight: 500;
    color: var(--text-dark);
    font-size: var(--text-base);
    padding: var(--spacing-1) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-light));
    border-radius: var(--radius-full);
    transition: width var(--transition-smooth);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
}

.nav-cta {
    margin-left: var(--spacing-4);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--text-dark);
    cursor: pointer;
    padding: var(--spacing-2);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.mobile-toggle:hover {
    background-color: var(--bg-light-blue);
    color: var(--primary-blue);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    padding: 140px 0 var(--spacing-20);
    background: linear-gradient(135deg, var(--white) 0%, var(--bg-light-blue) 50%, #E0EBFF 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 70%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(31, 111, 235, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
}

.hero-text {
    animation: fadeInUp 0.8s ease forwards;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--white);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-6);
    box-shadow: var(--shadow-sm);
}

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

.hero-text h1 {
    margin-bottom: var(--spacing-6);
    background: linear-gradient(135deg, var(--text-dark) 0%, var(--navy-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: var(--text-lg);
    color: var(--text-body);
    margin-bottom: var(--spacing-8);
    max-width: 520px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-10);
    margin-top: var(--spacing-12);
    padding-top: var(--spacing-8);
    border-top: 1px solid var(--border-soft);
}

.hero-stat {
    text-align: left;
}

.hero-stat-number {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1;
    margin-bottom: var(--spacing-1);
}

.hero-stat-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.hero-image {
    position: relative;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero-image img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}

.hero-image-float {
    position: absolute;
    background: var(--white);
    padding: var(--spacing-4) var(--spacing-5);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    animation: float 3s ease-in-out infinite;
}

.hero-image-float.top-left {
    top: -20px;
    left: -30px;
}

.hero-image-float.bottom-right {
    bottom: -20px;
    right: -30px;
    animation-delay: 1.5s;
}

.hero-float-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.hero-float-icon.blue {
    background: var(--bg-light-blue);
    color: var(--primary-blue);
}

.hero-float-icon.green {
    background: var(--success-light);
    color: var(--success-green);
}

.hero-float-text {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-dark);
}

.hero-float-subtext {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

/* ===========================
   Cards
   =========================== */
.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    border: 1px solid var(--border-soft);
    transition: all var(--transition-smooth);
    position: relative;
}

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

.card-link {
    position: absolute;
    inset: 0;
    z-index: 1;
}

/* Benefit Cards */
.benefit-card {
    text-align: center;
    padding: var(--spacing-10) var(--spacing-6);
}

.benefit-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--bg-light-blue) 0%, #dce8ff 100%);
    color: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto var(--spacing-6);
    transition: all var(--transition-smooth);
}

.benefit-card:hover .benefit-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-hover) 100%);
    color: var(--white);
}

.benefit-card h3 {
    margin-bottom: var(--spacing-3);
}

.benefit-card p {
    color: var(--text-muted);
    margin-bottom: 0;
    font-size: var(--text-sm);
}

/* Course Cards */
.course-card {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.course-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.course-image img {
    aspect-ratio: 1 / 1 !important;
    height: 100% !important;
    width: auto !important;
    max-width: 100%;
    object-fit: cover !important;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.746);
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 2;
    transition: transform var(--transition-smooth);
}

.course-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    transition: transform var(--transition-smooth);
}

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

.course-card:hover .course-image::before {
    transform: scale(1.05);
}

.course-content {
    padding: var(--spacing-6);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.course-tag {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-3);
}

.course-title {
    font-size: var(--text-xl);
    margin-bottom: var(--spacing-2);
}

.course-desc {
    color: var(--text-muted);
    font-size: var(--text-sm);
    flex-grow: 1;
    margin-bottom: var(--spacing-4);
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--border-soft);
}

.course-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--primary-blue);
    font-weight: 600;
    font-size: var(--text-sm);
    transition: gap var(--transition-fast);
}

.course-card:hover .course-link {
    gap: var(--spacing-3);
}

/* Testimonial Cards & Carousel */
.testimonial-carousel {
    overflow: hidden;
    width: 100%;
    position: relative;
    padding: var(--spacing-4) 0;
}

.testimonial-carousel::before,
.testimonial-carousel::after {
    content: '';
    position: absolute;
    top: 0;
    width: 60px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.testimonial-carousel::before {
    left: 0;
    background: linear-gradient(to right, var(--white) 0%, transparent 100%);
}

.testimonial-carousel::after {
    right: 0;
    background: linear-gradient(to left, var(--white) 0%, transparent 100%);
}

.testimonial-track {
    display: flex;
    gap: var(--spacing-6);
    width: max-content;
    animation: scroll-carousel 45s linear infinite;
}

.testimonial-track:hover {
    animation-play-state: paused;
}

@keyframes scroll-carousel {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-50% - (var(--spacing-6) / 2)));
    }
}

.testimonial-card {
    padding: var(--spacing-8);
    position: relative;
    width: 380px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.testimonial-quote {
    position: absolute;
    top: var(--spacing-6);
    right: var(--spacing-6);
    font-size: 4rem;
    color: var(--bg-light-blue);
    font-family: Georgia, serif;
    line-height: 1;
    z-index: 0;
    pointer-events: none;
}

.testimonial-text {
    font-size: var(--text-lg);
    font-style: italic;
    color: var(--text-body);
    margin-bottom: var(--spacing-6);
    line-height: 1.8;
    padding-right: var(--spacing-8);
    flex-grow: 1;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.testimonial-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--bg-light-blue);
}

.testimonial-name {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 2px;
}

.testimonial-role {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.testimonial-stars {
    color: var(--accent-yellow);
    font-size: 1.15rem;
    letter-spacing: 2px;
    display: inline-block;
    margin-left: var(--spacing-1);
}

/* ===========================
   Section Headers
   =========================== */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-12);
}

.section-header .badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: var(--bg-light-blue);
    color: var(--primary-blue);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
}

.section-header h2 {
    margin-bottom: var(--spacing-4);
}

.section-header p {
    color: var(--text-muted);
    font-size: var(--text-lg);
    margin-bottom: 0;
}

/* ===========================
   Certifications Section
   =========================== */
.certs-section {
    background: linear-gradient(135deg, var(--navy-dark) 0%, #0d3358 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.certs-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 100%;
    background: radial-gradient(ellipse at center top, rgba(31, 111, 235, 0.15) 0%, transparent 70%);
}

.cert-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-3);
    justify-content: center;
    margin-top: var(--spacing-8);
}

.cert-tag {
    background: var(--white);
    color: var(--navy-dark);
    padding: var(--spacing-3) var(--spacing-5);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: var(--text-sm);
    transition: all var(--transition-smooth);
    box-shadow: var(--shadow-sm);
}

.cert-tag:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-md);
}

/* Certification Cards - Home */
.cert-card-wrapper {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-3);
}

.cert-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius-xl);
    padding: var(--spacing-5);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 140px;
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.cert-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 2px;
    background: linear-gradient(135deg, rgba(31, 111, 235, 0), rgba(31, 111, 235, 0));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    transition: background 0.4s ease;
    pointer-events: none;
}

.cert-card:hover::before {
    background: linear-gradient(135deg, rgba(31, 111, 235, 0.6), rgba(99, 179, 237, 0.4));
}

.cert-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 15px 40px rgba(31, 111, 235, 0.25), 0 5px 15px rgba(0, 0, 0, 0.1);
    background: #ffffff;
}

.cert-card img {
    width: 100%;
    max-height: 100px;
    object-fit: contain;
    transition: transform 0.4s ease;
}

.cert-card:hover img {
    transform: scale(1.08);
}

.cert-label {
    color: rgba(255, 255, 255, 0.95);
    font-weight: 600;
    font-size: var(--text-base);
    font-family: var(--font-heading);
    letter-spacing: 0.3px;
}

.cert-lang-tag {
    display: inline-block;
    background: rgba(31, 111, 235, 0.25);
    color: rgba(255, 255, 255, 0.85);
    padding: 4px 14px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
    border: 1px solid rgba(31, 111, 235, 0.3);
    letter-spacing: 0.5px;
}

/* ===========================
   Military Section (Certifications Page)
   =========================== */
.mil-float-card {
    will-change: transform;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
}

.mil-service-card {
    background: rgba(255, 255, 255, 0.07);
    border-radius: var(--radius-xl);
    padding: var(--spacing-8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.mil-service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #FBBF24, #F97316);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.mil-service-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-6px);
    border-color: rgba(251, 191, 36, 0.25);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3), 0 0 30px rgba(251, 191, 36, 0.08);
}

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

.mil-service-icon {
    width: 64px;
    height: 64px;
    background: rgba(251, 191, 36, 0.12);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-5);
    font-size: 1.75rem;
    color: #FBBF24;
    transition: all 0.4s ease;
}

.mil-service-card:hover .mil-service-icon {
    background: linear-gradient(135deg, #FBBF24, #F97316);
    color: #1a1a1a;
    transform: scale(1.1);
}

.mil-service-card h4 {
    color: white;
    margin-bottom: var(--spacing-3);
    font-size: var(--text-lg);
}

.mil-service-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
    line-height: 1.7;
    margin-bottom: var(--spacing-5);
}

.mil-service-tags {
    display: flex;
    gap: var(--spacing-2);
    justify-content: center;
    flex-wrap: wrap;
}

.mil-service-tags span {
    background: rgba(251, 191, 36, 0.12);
    color: #FBBF24;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    border: 1px solid rgba(251, 191, 36, 0.2);
}

.mil-gallery-item {
    overflow: hidden;
    border-radius: var(--radius-lg);
    cursor: pointer;
}

.mil-gallery-item img {
    transition: all 0.4s ease;
}

.mil-gallery-item:hover img {
    transform: scale(1.08);
    border-color: rgba(251, 191, 36, 0.4) !important;
    box-shadow: 0 8px 25px rgba(251, 191, 36, 0.2);
}

/* ===========================
   Exchange CTA Section
   =========================== */
.exchange-cta {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #165AC6 50%, var(--navy-dark) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-16) var(--spacing-12);
    color: var(--white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.exchange-cta::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.exchange-icon {
    font-size: 4rem;
    color: var(--accent-yellow);
    margin-bottom: var(--spacing-6);
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

.exchange-cta h2 {
    color: var(--white);
    margin-bottom: var(--spacing-4);
}

.exchange-cta p {
    color: rgba(255, 255, 255, 0.85);
    max-width: 600px;
    margin: 0 auto var(--spacing-8);
    font-size: var(--text-lg);
}

/* ===========================
   Footer
   =========================== */
.footer {
    background: var(--navy-dark);
    color: var(--white);
    padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-12);
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: var(--spacing-4);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    max-width: 300px;
    font-size: var(--text-sm);
    line-height: 1.7;
}

.footer-heading {
    color: var(--white);
    font-size: var(--text-base);
    margin-bottom: var(--spacing-5);
    font-weight: 600;
}

.footer-links li {
    margin-bottom: var(--spacing-3);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
}

.footer-links a:hover {
    color: var(--white);
    transform: translateX(4px);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--text-sm);
    margin-bottom: var(--spacing-4);
}

.footer-contact-item i {
    color: var(--primary-blue);
    font-size: 1.25rem;
    margin-top: 2px;
}

.social-links {
    display: flex;
    gap: var(--spacing-3);
    margin-top: var(--spacing-6);
}

.social-icon {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--white);
    transition: all var(--transition-smooth);
}

.social-icon:hover {
    background: var(--primary-blue);
    transform: translateY(-3px);
}

.footer-bottom {
    padding-top: var(--spacing-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--text-sm);
}

/* ===========================
   Page Headers
   =========================== */
.page-header {
    padding: 140px 0 var(--spacing-16);
    background: linear-gradient(135deg, var(--white) 0%, var(--bg-light-blue) 100%);
    text-align: center;
}

.page-header h1 {
    margin-bottom: var(--spacing-4);
}

.page-header p {
    font-size: var(--text-lg);
    color: var(--text-body);
    max-width: 600px;
    margin: 0 auto;
}

/* ===========================
   Forms
   =========================== */
.form-group {
    margin-bottom: var(--spacing-5);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-2);
    font-weight: 500;
    color: var(--text-dark);
    font-size: var(--text-sm);
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--text-dark);
    background: var(--white);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px rgba(31, 111, 235, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 140px;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 18px;
    padding-right: 48px;
}

/* Contact Info */
.contact-info-item {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
    align-items: flex-start;
}

.contact-icon {
    width: 52px;
    height: 52px;
    background: var(--bg-light-blue);
    color: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-info-item h4 {
    margin-bottom: var(--spacing-1);
    font-size: var(--text-base);
}

.contact-info-item p {
    margin-bottom: var(--spacing-1);
    font-size: var(--text-sm);
}

.contact-info-item .text-muted {
    font-size: var(--text-xs);
}

/* ===========================
   Values Cards
   =========================== */
.value-card {
    text-align: center;
    border-top: 4px solid;
    padding-top: var(--spacing-8);
}

.value-card.mission {
    border-color: var(--primary-blue);
}

.value-card.vision {
    border-color: var(--accent-yellow);
}

.value-card.values {
    border-color: var(--success-green);
}

.value-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-4);
}

.value-card.mission .value-icon {
    color: var(--primary-blue);
}

.value-card.vision .value-icon {
    color: var(--accent-yellow);
}

.value-card.values .value-icon {
    color: var(--success-green);
}

/* ===========================
   Methodology Section
   =========================== */
.method-item {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.method-icon {
    width: 32px;
    height: 32px;
    background: var(--success-light);
    color: var(--success-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.method-item h4 {
    margin-bottom: var(--spacing-1);
    font-size: var(--text-base);
}

.method-item p {
    color: var(--text-muted);
    font-size: var(--text-sm);
    margin-bottom: 0;
}

/* CTA Card */
.cta-card {
    background: linear-gradient(135deg, var(--navy-dark) 0%, #0d3358 100%);
    color: var(--white);
    border: none;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.cta-card h3 {
    color: var(--white);
    margin-bottom: var(--spacing-3);
}

.cta-card p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-6);
}

/* ===========================
   Course Detail Sections
   =========================== */
.course-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
    margin-bottom: var(--spacing-16);
}

.course-detail.reverse {
    direction: rtl;
}

.course-detail.reverse>* {
    direction: ltr;
}

.course-detail-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.course-detail-image img {
    width: 100%;
    height: 350px;
    object-fit: cover;
}

.course-detail-tag {
    display: inline-block;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
}

.course-detail-content h2 {
    margin-bottom: var(--spacing-4);
}

.course-detail-content>p {
    color: var(--text-body);
    margin-bottom: var(--spacing-6);
}

.course-benefits {
    margin-bottom: var(--spacing-6);
}

.course-benefits li {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-3);
    font-size: var(--text-sm);
}

.course-benefits li i {
    color: var(--success-green);
    font-size: 1.25rem;
}

/* ===========================
   Map Section
   =========================== */
.map-wrapper {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    height: 400px;
}

.map-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* ===========================
   Responsive Design
   =========================== */
@media (max-width: 1024px) {
    :root {
        --text-5xl: 2.5rem;
        --text-4xl: 2rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-10);
    }

    .hero-text p {
        margin: 0 auto var(--spacing-8);
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-image-float {
        display: none;
    }

    .mil-float-card {
        transform: scale(0.85);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-5 {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .course-detail {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }

    .course-detail.reverse {
        direction: ltr;
    }
}

@media (max-width: 768px) {
    :root {
        --text-5xl: 2rem;
        --text-4xl: 1.75rem;
        --text-3xl: 1.5rem;
        --spacing-20: 60px;
        --spacing-16: 48px;
    }

    .section {
        padding: var(--spacing-16) 0;
    }

    .container {
        padding: 0 var(--spacing-4);
    }

    /* Mobile Navigation */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 400px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-20) var(--spacing-8);
        gap: var(--spacing-6);
        box-shadow: var(--shadow-xl);
        transition: right var(--transition-smooth);
        z-index: 1001;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        font-size: var(--text-lg);
        width: 100%;
        padding: var(--spacing-3) 0;
    }

    .nav-cta {
        margin: var(--spacing-4) 0 0 0;
        width: 100%;
    }

    .nav-cta .btn {
        width: 100%;
    }

    .mobile-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 1002;
    }

    .mobile-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 998;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-smooth);
    }

    .mobile-overlay.active {
        opacity: 1;
        visibility: visible;
    }

    /* Grid */
    .grid-2,
    .grid-3,
    .grid-4,
    .grid-5 {
        grid-template-columns: 1fr;
    }

    /* Hero */
    .hero {
        padding-top: 120px;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-6);
        align-items: center;
    }

    .hero-stat {
        text-align: center;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-4);
        text-align: center;
    }

    /* Cards */
    .benefit-card {
        padding: var(--spacing-6);
    }

    /* Exchange CTA */
    .exchange-cta {
        padding: var(--spacing-10) var(--spacing-6);
    }

    /* Page Header */
    .page-header {
        padding: 120px 0 var(--spacing-12);
    }
}

@media (max-width: 480px) {
    :root {
        --text-5xl: 1.75rem;
        --text-4xl: 1.5rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: var(--text-sm);
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .benefit-icon {
        width: 56px;
        height: 56px;
        font-size: 1.5rem;
    }

    .course-image {
        height: 140px;
    }
}

/* ===========================
   Accessibility
   =========================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal,
    .reveal-left,
    .reveal-right {
        opacity: 1;
        transform: none;
    }
}

:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Skip to content link */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--spacing-4);
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-md);
    z-index: 9999;
    font-weight: 600;
}

.skip-link:focus {
    top: var(--spacing-4);
}