/**
 * ===========================================
 * MIS DESIGN TOKENS & SYSTEM
 * Production-ready design system with CSS custom properties
 * ===========================================
 */

:root {
    /* ========================================= */
    /* COLOR PALETTE */
    /* ========================================= */

    /* Brand Colors */
    --color-brand-primary: #dc2626;
    --color-brand-primary-light: #ef4444;
    --color-brand-primary-dark: #b91c1c;
    --color-brand-secondary: #1e40af;
    --color-brand-secondary-light: #3b82f6;

    /* Accent Colors */
    --color-accent-amber: #f59e0b;
    --color-accent-emerald: #10b981;
    --color-accent-blue: #3b82f6;
    --color-accent-pink: #ec4899;
    --color-accent-purple: #8b5cf6;

    /* Neutral Scale */
    --color-neutral-50: #fafafa;
    --color-neutral-100: #f5f5f5;
    --color-neutral-200: #e5e5e5;
    --color-neutral-300: #d4d4d4;
    --color-neutral-400: #a3a3a3;
    --color-neutral-500: #737373;
    --color-neutral-600: #525252;
    --color-neutral-700: #404040;
    --color-neutral-800: #262626;
    --color-neutral-900: #171717;
    --color-neutral-950: #0a0a0a;

    /* Semantic Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;

    /* Surface Colors */
    --color-surface-light: #ffffff;
    --color-surface-neutral: var(--color-neutral-50);
    --color-surface-dark: var(--color-neutral-900);

    /* Text Colors */
    --color-text-primary: var(--color-neutral-900);
    --color-text-secondary: var(--color-neutral-700);
    --color-text-muted: var(--color-neutral-600);
    /* Improved contrast for WCAG AA compliance */
    --color-text-on-primary: #ffffff;
    --color-text-on-dark: #ffffff;


    /* ========================================= */
    /* TYPOGRAPHY */
    /* ========================================= */

    /* Font Families — Source of Truth */
    --font-display: 'Montserrat', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Montserrat', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    --font-serif: 'Merriweather', 'Times New Roman', Georgia, serif; /* Legacy — dùng khi cần serif */

    /* Font Sizes - Fluid Scale */
    --text-xs: 0.75rem;
    /* 12px */
    --text-sm: 0.875rem;
    /* 14px */
    --text-base: 1rem;
    /* 16px - Synced with custom.css base scale */
    --text-lg: 1.125rem;
    /* 18px */
    --text-xl: 1.25rem;
    /* 20px */
    --text-2xl: 1.5rem;
    /* 24px */
    --text-3xl: 1.875rem;
    /* 30px */
    --text-4xl: 2.25rem;
    /* 36px */
    --text-5xl: 3rem;
    /* 48px */
    --text-6xl: 3.75rem;
    /* 60px */

    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;

    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;


    /* ========================================= */
    /* SPACING SCALE - Fluid & Responsive */
    /* ========================================= */

    --space-xs: clamp(0.25rem, 1vw, 0.5rem);
    /* 4-8px */
    --space-sm: clamp(0.5rem, 2vw, 0.75rem);
    /* 8-12px */
    --space-md: clamp(0.75rem, 2.5vw, 1rem);
    /* 12-16px */
    --space-lg: clamp(1rem, 3vw, 1.5rem);
    /* 16-24px */
    --space-xl: clamp(1.5rem, 4vw, 2rem);
    /* 24-32px */
    --space-2xl: clamp(2rem, 5vw, 3rem);
    /* 32-48px */
    --space-3xl: clamp(3rem, 6vw, 4rem);
    /* 48-64px */
    --space-4xl: clamp(5rem, 9vw, 7.5rem);
    /* 80-120px */


    /* ========================================= */
    /* LAYOUT */
    /* ========================================= */

    --container-max-width: 80rem;
    /* 1280px */
    --container-narrow: 42rem;
    /* 672px */
    --container-wide: 90rem;
    /* 1440px */
    --container-padding: var(--space-lg);

    --section-padding-y: var(--space-4xl);
    --measure-reading: 70ch;
    --curriculum-body-size: 1.125rem;
    --curriculum-caption-size: 0.96875rem;
    --curriculum-measure: 70ch;


    /* ========================================= */
    /* BORDERS & RADIUS */
    /* ========================================= */

    --border-width: 1px;
    --border-width-thick: 2px;

    --radius-sm: 0.375rem;
    /* 6px */
    --radius-md: 0.5rem;
    /* 8px */
    --radius-lg: 0.75rem;
    /* 12px */
    --radius-xl: 1rem;
    /* 16px */
    --radius-2xl: 1.5rem;
    /* 24px */
    --radius-3xl: 2rem;
    /* 32px */
    --radius-full: 9999px;


    /* ========================================= */
    /* SHADOWS */
    /* ========================================= */

    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-premium: 0 25px 50px -12px rgb(220 38 38 / 0.15);


    /* ========================================= */
    /* ANIMATIONS */
    /* ========================================= */

    --duration-fast: 150ms;
    --duration-base: 250ms;
    --duration-slow: 350ms;
    --duration-slower: 500ms;

    --easing-linear: linear;
    --easing-ease: ease;
    --easing-ease-in: cubic-bezier(0.4, 0, 1, 1);
    --easing-ease-out: cubic-bezier(0, 0, 0.2, 1);
    --easing-ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --easing-smooth: cubic-bezier(0.4, 0, 0.2, 1);


    /* ========================================= */
    /* GRADIENTS */
    /* ========================================= */

    --gradient-primary: linear-gradient(135deg, var(--color-brand-primary) 0%, var(--color-brand-primary-dark) 100%);
    --gradient-red: linear-gradient(135deg, #dc2626 0%, #b91c1c 50%, #991b1b 100%);
    --gradient-hero: linear-gradient(135deg, #7c1717 0%, #16213e 50%, #0f3460 100%);
    --gradient-blue: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
    --gradient-purple: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%);
    --gradient-ocean: linear-gradient(135deg, #3b82f6 0%, #10b981 100%);


    /* ========================================= */
    /* Z-INDEX SCALE */
    /* ========================================= */

    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    --z-notification: 800;

    /* ========================================= */
    /* PORTAL SEMANTIC ALIASES                   */
    /* ========================================= */

    --p-gray-50: var(--color-neutral-50);
    --p-gray-100: var(--color-neutral-100);
    --p-gray-200: var(--color-neutral-200);
    --p-gray-300: var(--color-neutral-300);
    --p-gray-400: var(--color-neutral-400);
    --p-gray-500: var(--color-neutral-600);   /* WCAG AA safe */
    --p-gray-600: var(--color-neutral-600);
    --p-gray-700: var(--color-neutral-700);
    --p-gray-800: var(--color-neutral-800);
    --p-gray-900: var(--color-neutral-900);
    --p-danger: var(--color-brand-primary);
    --p-success: var(--color-success);
    --p-warning: var(--color-warning);
    --p-info: var(--color-info);
    --p-radius-sm: var(--radius-sm);
    --p-radius-md: var(--radius-md);
    --p-radius-lg: var(--radius-lg);
    --p-space-4: var(--space-sm);
    --p-space-6: var(--space-lg);
    --p-space-8: var(--space-xl);
    --p-fs-sm: var(--fs-200);
    --p-fs-md: var(--fs-300);
    --p-fs-lg: var(--fs-400);

    /* Icon sizes */
    --fs-icon-xs: 0.6rem;
    --fs-icon-sm: 0.65rem;
    --fs-icon-md: 0.7rem;
    --fs-icon-base: 0.75rem;
    --fs-icon-lg: 0.85rem;

    /* ========================================= */
    /* TINT / BACKGROUND COLORS                  */
    /* Thay thế cho các giá trị hardcode         */
    /* ========================================= */

    --color-brand-primary-bg: #fef2f2;
    --color-brand-primary-bg-alt: #fee2e2;
    --color-brand-primary-border: #fecaca;

    --color-accent-blue-bg: #eff6ff;
    --color-accent-emerald-bg: #ecfdf5;
    --color-accent-amber-bg: #fffbeb;
    --color-accent-purple-bg: #f3e5f5;

    --color-accent-indigo: #4f46e5;
    --color-accent-teal: #14b8a6;
    --color-facebook-blue: #1877f2;

    /* ========================================= */
    /* GRADIENT BỔ SUNG                           */
    /* ========================================= */

    --gradient-hero-light: linear-gradient(135deg, #fff5f5 0%, #ffe4e6 50%, #fecdd3 100%);
    --gradient-footer-dark: linear-gradient(180deg, #0f172a 0%, #020617 100%);

    /* ========================================= */
    /* FONT SIZE ALIASES (--text-* → --fs-*)     */
    /* Đồng bộ 2 hệ thống                        */
    /* ========================================= */

    --fs-100: var(--text-xs);
    --fs-200: var(--text-sm);
    --fs-300: var(--text-base);
    --fs-400: var(--text-lg);
    --fs-500: var(--text-xl);
    --fs-600: var(--text-2xl);
    --fs-700: var(--text-3xl);
    --fs-800: var(--text-4xl);
    --fs-900: var(--text-5xl);
    --fs-1000: var(--text-6xl);
}


/**
 * ===========================================
 * DARK MODE SUPPORT
 * ===========================================
 */
:root[data-theme="dark"],
.dark {
    --color-surface-light: var(--color-neutral-900);
    --color-surface-neutral: var(--color-neutral-800);
    --color-surface-dark: var(--color-neutral-950);

    --color-text-primary: var(--color-neutral-50);
    --color-text-secondary: var(--color-neutral-300);
    --color-text-muted: var(--color-neutral-400);
}


/**
 * ===========================================
 * BASE STYLES
 * ===========================================
 */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: var(--text-base); /* Unified 16px base scale */
    line-height: var(--leading-normal);
    color: var(--color-text-primary);
    background-color: var(--color-surface-light);
}


/**
 * ===========================================
 * LAYOUT COMPONENTS
 * ===========================================
 */
.container {
    max-width: var(--container-max-width);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

.container--narrow {
    max-width: var(--container-narrow);
}

.container--wide {
    max-width: var(--container-wide);
}

.about-scope .section {
    padding-block: var(--section-padding-y);
}

.about-scope .section--light {
    background-color: var(--color-surface-light);
}

.about-scope .section--neutral {
    background-color: var(--color-surface-neutral);
}

.about-scope .section--dark {
    background-color: var(--color-surface-dark);
    color: var(--color-text-on-dark);
}

/* Split Layout */
.split-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-2xl);
    align-items: center;
}

@media (max-width: 1024px) {
    .split-layout {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
}


/**
 * ===========================================
 * TYPOGRAPHY
 * ===========================================
 */
h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
}

.eyebrow {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.section-header {
    margin-bottom: var(--space-2xl);
}

.section-header--center {
    text-align: center;
}

.section-header__title {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: var(--font-bold);
    margin-bottom: var(--space-md);
}

.section-header__subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    max-width: var(--measure-reading);
}

.section-header--center .section-header__subtitle {
    margin-inline: auto;
}


/**
 * ===========================================
 * HERO COMPONENT
 * ===========================================
 */
.hero {
    position: relative;
    min-height: clamp(50vh, 60vh, 70vh);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: var(--color-text-on-dark);
}

.hero--gradient-red {
    background: var(--gradient-hero);
}

.hero__bg-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.25;
    z-index: var(--z-base);
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    opacity: 0.9;
    z-index: calc(var(--z-base) + 1);
}

.hero__pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 2px 2px, rgba(255, 255, 255, 0.1) 1px, transparent 0);
    background-size: 32px 32px;
    z-index: calc(var(--z-base) + 2);
}

/* Decorative blobs */
.hero__deco {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    z-index: calc(var(--z-base) + 1);
    animation: float 20s ease-in-out infinite;
}

.hero__deco--blob-1 {
    top: -10rem;
    right: -10rem;
    width: 40rem;
    height: 40rem;
    background: rgba(239, 68, 68, 0.4);
}

.hero__deco--blob-2 {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50rem;
    height: 50rem;
    background: rgba(255, 255, 255, 0.05);
    animation-delay: 2s;
}

.hero__deco--blob-3 {
    bottom: -10rem;
    left: -10rem;
    width: 40rem;
    height: 40rem;
    background: rgba(220, 38, 38, 0.4);
    animation-delay: 4s;
}

@keyframes float {

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

    50% {
        transform: translateY(-20px) scale(1.05);
    }
}

.hero__content {
    position: relative;
    z-index: calc(var(--z-base) + 3);
    text-align: center;
    padding-block: var(--space-3xl);
}

.hero__headline {
    font-size: clamp(var(--text-lg), 2vw, var(--text-xl));
    font-weight: var(--font-light);
    margin-bottom: var(--space-md);
    opacity: 0.9;
}

.hero__title {
    font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl));
    font-weight: var(--font-extrabold);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.hero__subtitle {
    font-size: clamp(var(--text-base), 2vw, var(--text-xl));
    line-height: var(--leading-relaxed);
    max-width: var(--measure-reading);
    margin-inline: auto;
    margin-bottom: var(--space-xl);
    opacity: 0.95;
}

.hero__cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    align-items: center;
}

@media (max-width: 640px) {
    .hero__cta-group {
        flex-direction: column;
    }
}


/**
 * ===========================================
 * BUTTON SYSTEM
 * ===========================================
 */
.about-scope .btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    text-decoration: none;
    border: var(--border-width) solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--duration-base) var(--easing-smooth);
    white-space: nowrap;
}

.about-scope .btn--lg {
    padding: 1rem 2rem;
    font-size: var(--text-lg);
}

.about-scope .btn--primary {
    background-color: var(--color-brand-primary);
    color: var(--color-text-on-primary);
    box-shadow: var(--shadow-md);
}

.about-scope .btn--primary:hover {
    background-color: var(--color-brand-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.about-scope .btn--primary:active {
    transform: translateY(0);
}

.about-scope .btn--ghost-light {
    color: var(--color-text-on-dark);
    border-color: rgba(255, 255, 255, 0.3);
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.about-scope .btn--ghost-light:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.about-scope .btn--light {
    background-color: white;
    color: var(--color-brand-primary);
    box-shadow: var(--shadow-md);
}

.about-scope .btn--light:hover {
    background-color: var(--color-neutral-50);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.about-scope .btn--outline {
    border-color: var(--color-neutral-300);
    color: var(--color-text-primary);
    background-color: transparent;
}

.about-scope .btn--outline:hover {
    background-color: var(--color-neutral-50);
    border-color: var(--color-brand-primary);
    color: var(--color-brand-primary);
}

.about-scope .btn__icon {
    transition: transform var(--duration-base) var(--easing-smooth);
}

.about-scope .btn:hover .btn__icon {
    transform: translateX(4px);
}

/* Focus states for accessibility */
.about-scope .btn:focus-visible {
    outline: 2px solid var(--color-brand-primary);
    outline-offset: 2px;
}

.about-scope .btn:focus:not(:focus-visible) {
    outline: none;
}


/**
 * ===========================================
 * BADGE COMPONENT
 * ===========================================
 */
.about-scope .badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.about-scope .badge--primary {
    background-color: rgba(220, 38, 38, 0.1);
    color: var(--color-brand-primary);
}

.about-scope .badge--hero {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    backdrop-filter: blur(10px);
}

.about-scope .badge--light {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    backdrop-filter: blur(10px);
}

.about-scope .badge--accent {
    background-color: var(--color-accent-blue);
    color: white;
}


/**
 * ===========================================
 * CARD GRIDS
 * ===========================================
 */
.card-grid {
    display: grid;
    gap: var(--space-lg);
}

.card-grid--2col {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card-grid--3col {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card-grid--4col {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

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


/**
 * ===========================================
 * FEATURE CARD
 * ===========================================
 */
.feature-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg);
    background-color: white;
    border: var(--border-width) solid var(--color-neutral-100);
    border-radius: var(--radius-xl);
    transition: all var(--duration-base) var(--easing-smooth);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-brand-primary);
}

.feature-card__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: var(--text-xl);
}

.feature-card__icon--primary {
    background: var(--gradient-primary);
    color: white;
}

.feature-card__title {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: 0.25rem;
}

.feature-card__description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}


/**
 * ===========================================
 * CTA COMPONENT
 * ===========================================
 */
.cta {
    position: relative;
    padding-block: var(--space-4xl);
    overflow: hidden;
    color: var(--color-text-on-dark);
}

.cta--gradient-red {
    background: var(--gradient-red);
}

.cta__pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle at 2px 2px, rgba(255, 255, 255, 0.1) 1px, transparent 0);
    background-size: 32px 32px;
    opacity: 0.3;
}

.cta__content {
    position: relative;
    z-index: var(--z-base);
    text-align: center;
}

.cta__title {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: var(--font-bold);
    margin-bottom: var(--space-md);
    text-wrap: balance;
}

.cta__subtitle {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-xl);
    opacity: 0.95;
}

.cta__button-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    align-items: center;
}


/**
 * ===========================================
 * CHECKLIST
 * ===========================================
 */
.checklist {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.checklist__item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
}

.checklist__item::before {
    content: '✓';
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-brand-primary);
    color: white;
    border-radius: 50%;
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    margin-top: 2px;
}


/**
 * ===========================================
 * ACCESSIBILITY
 * ===========================================
 */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background-color: var(--color-brand-primary);
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: 0 0 var(--radius-md) 0;
    z-index: var(--z-notification);
    transition: top var(--duration-fast) var(--easing-smooth);
}

.skip-link:focus {
    top: 0;
}

/* Focus visible for all interactive elements */
:focus-visible {
    outline: 2px solid var(--color-brand-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

:focus:not(:focus-visible) {
    outline: none;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {

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


/**
 * ===========================================
 * PROSE (Content)
 * ===========================================
 */
.prose {
    max-width: 65ch;
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text-secondary);
}

.prose h2 {
    font-size: var(--text-2xl);
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

.prose h3 {
    font-size: var(--text-xl);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.prose p {
    margin-bottom: var(--space-md);
}

.prose a {
    color: var(--color-brand-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.prose a:hover {
    color: var(--color-brand-primary-light);
}


/**
 * ===========================================
 * ADDITIONAL COMPONENTS FOR ABOUT PAGES
 * ===========================================
 */

/* Feature Grid */
.feature-grid {
    display: grid;
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

.feature-grid--2col {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

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

/* Roadmap Card */
.roadmap-card {
    background: white;
    border: 2px solid var(--color-neutral-200);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    transition: all var(--duration-base) var(--easing-smooth);
}

.roadmap-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-brand-primary);
}

.roadmap-card--highlight {
    background: linear-gradient(135deg, #fef2f2 0%, #fff 100%);
    border-color: var(--color-brand-primary);
    box-shadow: var(--shadow-lg);
}

.roadmap-card__badge {
    display: inline-block;
    background: var(--color-brand-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

.roadmap-card__title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

/* Pillar Card */
.pillar-card {
    background: white;
    border: 1px solid var(--color-neutral-100);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    transition: all var(--duration-base) var(--easing-smooth);
}

.pillar-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-brand-primary);
}

.pillar-card__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-md);
    background: linear-gradient(135deg, var(--color-brand-primary) 0%, var(--color-brand-primary-dark) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    color: white;
}

.pillar-card__title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

.pillar-card__description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

/* Level Card (for Academics page) */
.level-card {
    display: block;
    background: white;
    border: 2px solid var(--color-neutral-100);
    border-radius: var(--radius-2xl);
    padding: var(--space-xl);
    text-decoration: none;
    color: inherit;
    transition: all var(--duration-base) var(--easing-smooth);
    position: relative;
    overflow: hidden;
}

.level-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-red);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--duration-base) var(--easing-smooth);
}

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

.level-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--color-brand-primary);
}

.level-card__icon {
    width: 56px;
    height: 56px;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--color-brand-primary) 0%, var(--color-brand-primary-dark) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    color: white;
}

.level-card__title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-xs);
    color: var(--color-text-primary);
}

.level-card__meta {
    font-size: var(--text-sm);
    color: var(--color-brand-primary);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-md);
}

.level-card__description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-lg);
}

.level-card__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-brand-primary);
}

.level-card:hover .level-card__cta i {
    transform: translateX(4px);
}

.level-card__cta i {
    transition: transform var(--duration-base) var(--easing-smooth);
}

/* Info Card (for sidebar content) */
.info-card {
    background: white;
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-lg);
}

.info-card--gradient-red {
    background: var(--gradient-red);
    color: white;
}

.info-card__header {
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.9;
    margin-bottom: var(--space-lg);
}

.info-card__content {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

/* Steam Letter (STEAM breakdown) */
.steam-letter {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.steam-letter__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    backdrop-filter: blur(10px);
}

.steam-letter__title {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: 0.25rem;
}

.steam-letter__description {
    font-size: var(--text-sm);
    opacity: 0.85;
}

/* Feature Item Inline (for MIS x Jaxtina section) */
.feature-item-inline {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.feature-item-inline i {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    backdrop-filter: blur(10px);
}

.feature-item-inline__title {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: 0.25rem;
}

.feature-item-inline__description {
    font-size: var(--text-sm);
    opacity: 0.85;
}

/* Text Highlight */
.text-highlight {
    color: var(--color-accent-amber);
}

.text-accent {
    color: var(--color-accent-emerald);
}

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

/* Breadcrumb */
.about-scope .breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.about-scope .breadcrumb a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--duration-fast);
}

.about-scope .breadcrumb a:hover {
    color: var(--color-brand-primary);
}

.about-scope .breadcrumb__separator {
    color: var(--color-neutral-400);
}

.about-scope .breadcrumb__current {
    color: var(--color-text-primary);
    font-weight: var(--font-medium);
}

/* Page Header */
.about-scope .page-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.about-scope .page-title {
    font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
    font-weight: var(--font-extrabold);
    color: var(--color-text-primary);
    margin: var(--space-md) 0 var(--space-lg);
}

.about-scope .page-header__image {
    margin-top: var(--space-2xl);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-scope .page-header__image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Page Nav */
.page-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
    margin-top: var(--space-3xl);
}

.about-scope .btn--active {
    background-color: var(--color-brand-primary);
    color: white;
    border-color: var(--color-brand-primary);
}

/* Split Layout Visual enhancement */
.split-layout__visual img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

/* Responsive utilities */
@media (max-width: 640px) {
    .page-nav {
        flex-direction: column;
    }

    .about-scope .page-nav .btn {
        width: 100%;
        justify-content: center;
    }
}

/**
 * ===========================================
 * TAG / CHIP SYSTEM
 * Replaces inline styles in lifeskills, partners
 * ===========================================
 */

.tag {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    font-size: var(--text-sm);
    padding: .3rem .75rem;
    border-radius: 2rem;
    font-weight: 500;
    line-height: 1.4;
}

.tag--green  { background: #e8f5e9; color: #2e7d32; }
.tag--red    { background: var(--color-brand-primary-bg-alt); color: #c62828; }
.tag--blue   { background: #e3f2fd; color: #1565c0; }
.tag--orange { background: #fff3e0; color: #e65100; }
.tag--purple { background: var(--color-accent-purple-bg); color: #7b1fa2; }
.tag--purple-dark { background: var(--color-accent-purple-bg); color: #4a148c; }
.tag--indigo { background: #e8eaf6; color: #283593; }
.tag--teal   { background: #e0f2f1; color: #00695c; }

/* Partners page icon badges */
.tag--accent-red    { background: var(--color-brand-primary-bg); color: var(--color-brand-primary); }
.tag--accent-blue   { background: var(--color-accent-blue-bg); color: var(--color-accent-blue); }
.tag--accent-emerald { background: var(--color-accent-emerald-bg); color: var(--color-accent-emerald); }
.tag--accent-amber  { background: var(--color-accent-amber-bg); color: var(--color-accent-amber); }


/**
 * ===========================================
 * SOCIAL LINK BUTTONS
 * Replaces inline link styles in lifeskills
 * ===========================================
 */

.social-link {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: var(--text-sm);
    font-weight: 600;
    text-decoration: none;
    padding: .4rem .8rem;
    border-radius: .5rem;
    transition: all .2s;
    border: 1px solid;
}

.social-link:hover {
    transform: translateY(-1px);
    opacity: .85;
}

.social-link--navy    { color: #1e3a5f; border-color: #1e3a5f; }
.social-link--red     { color: #c62828; border-color: #c62828; }
.social-link--brand   { color: var(--color-brand-primary-dark); border-color: var(--color-brand-primary-dark); }
.social-link--green   { color: #2e7d32; border-color: #2e7d32; }
.social-link--purple  { color: #4a148c; border-color: #4a148c; }
.social-link--facebook { color: var(--color-facebook-blue); border-color: var(--color-facebook-blue); }

/* Compact link for collapsible sections */
.social-link--compact {
    font-size: var(--text-xs);
    font-weight: 500;
    color: #555;
    text-decoration: none;
    padding: .3rem .6rem;
    background: #f5f5f5;
    border-radius: .4rem;
    border: none;
}

.social-link--compact:hover {
    background: #eeeeee;
}

.social-link--compact i {
    color: var(--color-facebook-blue);
}


/**
 * ===========================================
 * ACTIVITY CARD (lifeskills page)
 * ===========================================
 */

.activity-card {
    background: var(--curriculum-card-bg, #fff);
    border-radius: 1.25rem;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, .06);
    border: 1px solid rgba(0, 0, 0, .06);
}

.activity-card__hero {
    position: relative;
    height: 260px;
    overflow: hidden;
}

.activity-card__hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.activity-card__hero-overlay {
    position: absolute;
    inset: 0;
}

.activity-card__hero-overlay--navy {
    background: linear-gradient(to top, rgba(30, 58, 95, .85) 0%, rgba(30, 58, 95, .3) 50%, transparent 100%);
}

.activity-card__hero-overlay--red {
    background: linear-gradient(to top, rgba(183, 28, 28, .85) 0%, rgba(183, 28, 28, .3) 50%, transparent 100%);
}

.activity-card__hero-overlay--purple {
    background: linear-gradient(to top, rgba(74, 20, 140, .85) 0%, rgba(74, 20, 140, .3) 50%, transparent 100%);
}

.activity-card__hero-content {
    position: absolute;
    bottom: 1.25rem;
    left: 1.5rem;
    right: 1.5rem;
}

.activity-card__badge {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: #fff;
    background: rgba(255, 255, 255, .2);
    backdrop-filter: blur(8px);
    padding: .3rem .75rem;
    border-radius: .35rem;
    margin-bottom: .5rem;
}

.activity-card__title {
    font-size: 1.35rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.3;
    text-shadow: 0 1px 4px rgba(0, 0, 0, .3);
    margin: 0;
}

.activity-card__body {
    padding: 1.75rem 2rem;
}

.activity-card__text {
    color: var(--curriculum-text, #555);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.activity-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 1.25rem;
}

.activity-card__links {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
}

.activity-card__more-links {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-top: .75rem;
}


/* Print styles */
@media print {

    .skip-link,
    .hero__deco,
    .hero__pattern,
    .cta__pattern {
        display: none;
    }
}