/* ============================================
   STEMNest Design System v2.0
   Premium, clean, structured layout
   ============================================ */

/* --- Custom Properties / Design Tokens --- */
:root {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-darker: #1e3a8a;
    --color-primary-light: #dbeafe;
    --color-primary-50: #eff6ff;
    --color-secondary: #0f766e;
    --color-secondary-dark: #0d5c56;
    --color-secondary-light: #ccfbf1;
    --color-accent: #f59e0b;
    --color-accent-dark: #d97706;
    --color-accent-light: #fef3c7;

    --color-text: #1e293b;
    --color-text-secondary: #475569;
    --color-text-muted: #94a3b8;
    --color-heading: #0f172a;

    --color-bg: #ffffff;
    --color-bg-subtle: #f8fafc;
    --color-bg-muted: #f1f5f9;
    --color-bg-dark: #0f172a;
    --color-bg-dark-lighter: #1e293b;

    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;

    --color-white: #ffffff;
    --color-black: #000000;

    --color-success: #22c55e;
    --color-warning: #eab308;
    --color-error: #ef4444;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    --line-height-tight: 1.15;
    --line-height-snug: 1.375;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.75;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 960px;
    --header-height: 72px;

    /* Borders */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;

    /* 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, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.04);
    --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.06);
    --shadow-primary: 0 4px 14px rgba(37, 99, 235, 0.3);
    --shadow-primary-hover: 0 8px 22px rgba(37, 99, 235, 0.4);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

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

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

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

ul,
ol {
    list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
}

button {
    font-family: var(--font-family);
}

svg {
    flex-shrink: 0;
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-6);
    padding-right: var(--space-6);
}

/* --- Section Spacing --- */
.section {
    padding-top: var(--space-24);
    padding-bottom: var(--space-24);
    position: relative;
}

.section--sm {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
}

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

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

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-heading);
    margin-bottom: var(--space-4);
    letter-spacing: -0.03em;
}

.section--dark .section-title {
    color: var(--color-white);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    line-height: var(--line-height-relaxed);
}

.section--dark .section-subtitle {
    color: rgba(255, 255, 255, 0.65);
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    height: var(--header-height);
    display: flex;
    align-items: center;
    transition: all var(--transition-base);
}

.site-header.scrolled {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.03);
    border-bottom-color: transparent;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Logo */
.site-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    flex-shrink: 0;
    transition: opacity var(--transition-fast);
}

.site-logo:hover {
    opacity: 0.85;
}

.site-logo__icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--color-primary) 0%, #6366f1 50%, var(--color-secondary) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: var(--font-weight-extrabold);
    font-size: var(--font-size-lg);
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.site-logo__icon::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.15) 50%, transparent 70%);
    animation: logoShine 4s ease-in-out infinite;
}

@keyframes logoShine {

    0%,
    100% {
        transform: translateX(-120%) rotate(45deg);
    }

    50% {
        transform: translateX(120%) rotate(45deg);
    }
}

.site-logo__text {
    font-size: 1.35rem;
    font-weight: var(--font-weight-extrabold);
    color: var(--color-heading);
    letter-spacing: -0.04em;
}

.site-logo__text span {
    color: var(--color-primary);
}

/* Navigation */
.primary-nav {
    display: flex;
    align-items: center;
}

.primary-nav .menu {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    list-style: none;
    margin: 0;
    padding: 0;
}

.primary-nav .menu-item a {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
    position: relative;
}

.primary-nav .menu-item a:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-50);
}

.primary-nav .menu-item.current-menu-item a,
.primary-nav .menu-item.current_page_item a {
    color: var(--color-primary);
    background-color: var(--color-primary-50);
    font-weight: var(--font-weight-semibold);
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast);
}

.menu-toggle:hover {
    background-color: var(--color-bg-muted);
}

.menu-toggle__bar {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.menu-toggle__bar+.menu-toggle__bar {
    margin-top: 5px;
}

.menu-toggle.active .menu-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active .menu-toggle__bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .menu-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    padding: var(--space-20) 0 var(--space-24);
    background: linear-gradient(165deg, var(--color-bg) 0%, var(--color-primary-50) 35%, #e0e7ff 65%, var(--color-bg-subtle) 100%);
    overflow: hidden;
    position: relative;
}

/* Decorative orbs */
.hero::before {
    content: '';
    position: absolute;
    top: -180px;
    right: -100px;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.07) 0%, transparent 65%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -120px;
    left: -120px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(15, 118, 110, 0.06) 0%, transparent 65%);
    pointer-events: none;
}

.hero__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.hero__content {
    position: relative;
    z-index: 1;
    padding-top: var(--space-8);
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    background: var(--color-white);
    color: var(--color-primary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-8);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-primary-light);
}

.hero__badge::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {

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

    50% {
        opacity: 0.5;
        transform: scale(1.3);
    }
}

.hero__title {
    font-size: clamp(2.25rem, 4vw, var(--font-size-6xl));
    font-weight: var(--font-weight-extrabold);
    line-height: 1.08;
    color: var(--color-heading);
    margin-bottom: var(--space-6);
    letter-spacing: -0.04em;
}

.hero__title span {
    background: linear-gradient(135deg, var(--color-primary) 0%, #6366f1 50%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-10);
    max-width: 480px;
}

.hero__actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* Hero Image */
.hero__image-wrapper {
    position: relative;
    z-index: 1;
}

.hero__image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    position: relative;
    aspect-ratio: 4 / 3;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, #c7d2fe 100%);
}

.hero__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero__image:hover img {
    transform: scale(1.04);
}

/* Fallback for broken images */
.hero__image-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    background: linear-gradient(135deg, var(--color-primary-light) 0%, #c7d2fe 50%, var(--color-secondary-light) 100%);
}

.hero__image-fallback span {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary-dark);
}

/* Decorative border ring on image */
.hero__image::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.3);
    pointer-events: none;
}

/* Floating accent card */
.hero__float {
    position: absolute;
    bottom: -16px;
    left: -16px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-4) var(--space-5);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    z-index: 2;
    animation: floatUp 4s ease-in-out infinite;
    border: 1px solid var(--color-border-light);
}

@keyframes floatUp {

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

    50% {
        transform: translateY(-10px);
    }
}

.hero__float-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-accent-light) 0%, #fde68a 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__float-text {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--color-heading);
    line-height: 1.3;
}

.hero__float-text span {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-muted);
    margin-top: 1px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.65rem var(--space-6);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    text-decoration: none;
    line-height: 1.5;
    position: relative;
    overflow: hidden;
}

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

.btn--primary:hover {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary-darker) 100%);
    border-color: var(--color-primary-dark);
    box-shadow: var(--shadow-primary-hover);
    transform: translateY(-2px);
}

.btn--primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn--secondary {
    background: var(--color-white);
    color: var(--color-text);
    border-color: var(--color-border);
    box-shadow: var(--shadow-xs);
}

.btn--secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-50);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--lg {
    padding: 0.8rem var(--space-8);
    font-size: var(--font-size-base);
    border-radius: var(--radius-lg);
}

.btn__arrow {
    transition: transform var(--transition-fast);
    font-size: 1.1em;
}

.btn:hover .btn__arrow {
    transform: translateX(4px);
}

/* ============================================
   CATEGORY CARDS (Explore Our STEM Guides)
   ============================================ */
.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.category-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    cursor: pointer;
    position: relative;
    text-decoration: none;
    display: block;
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: transparent;
}

.category-card__image {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, #c7d2fe 100%);
}

.category-card__image--fallback {
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-card__image--fallback::before {
    content: '';
    font-size: 3rem;
}

.category-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.category-card:hover .category-card__image img {
    transform: scale(1.06);
}

.category-card__image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.12), transparent);
    pointer-events: none;
}

.category-card__body {
    padding: var(--space-6) var(--space-6) var(--space-8);
}

.category-card__icon {
    width: 48px;
    height: 48px;
    background: var(--color-primary-50);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    color: var(--color-primary);
    transition: all var(--transition-base);
}

.category-card:hover .category-card__icon {
    background: var(--color-primary);
    color: var(--color-white);
    transform: scale(1.05);
}

.category-card:hover .category-card__icon svg {
    stroke: var(--color-white);
}

.category-card__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-heading);
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
}

.category-card__desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-5);
}

.category-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
    transition: gap var(--transition-base);
}

.category-card:hover .category-card__link {
    gap: var(--space-3);
}

/* ============================================
   ARTICLE CARDS (Featured Guides)
   ============================================ */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.article-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
    cursor: pointer;
}

.article-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
    border-color: transparent;
}

.article-card__image {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    position: relative;
    background: var(--color-bg-muted);
}

.article-card__visual {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.article-card:hover .article-card__visual {
    transform: scale(1.06);
}

.article-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.article-card:hover .article-card__image img {
    transform: scale(1.06);
}

.article-card__tag {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    padding: var(--space-1) var(--space-3);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    z-index: 1;
    box-shadow: var(--shadow-xs);
}

.article-card__body {
    padding: var(--space-5);
}

.article-card__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-heading);
    line-height: var(--line-height-snug);
    margin-bottom: var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    letter-spacing: -0.01em;
}

.article-card__title a {
    color: inherit;
    text-decoration: none;
}

.article-card__title a:hover {
    color: var(--color-primary);
}

.article-card__meta {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   TRUST SECTION
   ============================================ */
.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
}

.trust-item {
    text-align: center;
    padding: var(--space-8) var(--space-4);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    background: var(--color-white);
    border: 1px solid transparent;
}

.trust-item:hover {
    box-shadow: var(--shadow-card);
    border-color: var(--color-border);
    transform: translateY(-4px);
}

.trust-item__icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-5);
    background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-secondary-light) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-spring);
}

.trust-item:hover .trust-item__icon {
    transform: scale(1.12) rotate(-4deg);
    box-shadow: var(--shadow-md);
}

.trust-item__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    color: var(--color-heading);
    margin-bottom: var(--space-2);
}

.trust-item__desc {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ============================================
   ABOUT PREVIEW
   ============================================ */
.about-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-20);
    align-items: center;
}

.about-preview__content {
    max-width: 480px;
}

.about-preview__label {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-primary);
    margin-bottom: var(--space-5);
    padding: var(--space-1) var(--space-3);
    background: var(--color-primary-50);
    border-radius: var(--radius-sm);
}

.about-preview__title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    letter-spacing: -0.03em;
    margin-bottom: var(--space-5);
    line-height: var(--line-height-tight);
}

.about-preview__text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-8);
}

.about-preview__visual {
    position: relative;
}

.about-preview__card {
    background: linear-gradient(145deg, var(--color-primary-50) 0%, #e0e7ff 40%, var(--color-secondary-light) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--space-12);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-preview__card::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.08);
}

.about-preview__card::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: -40px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(15, 118, 110, 0.06);
}

.about-preview__stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
    position: relative;
    z-index: 1;
}

.about-stat {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-6) var(--space-5);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

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

.about-stat__number {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-extrabold);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.about-stat__label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-20) 0 var(--space-8);
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand__logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
}

.footer-brand__logo-icon {
    width: 34px;
    height: 34px;
    background: linear-gradient(135deg, var(--color-primary) 0%, #6366f1 50%, var(--color-secondary) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
}

.footer-brand__logo-text {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
    letter-spacing: -0.03em;
}

.footer-brand__logo-text span {
    color: #93b4f4;
}

.footer-brand__desc {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
    max-width: 300px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-col__title {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    color: rgba(255, 255, 255, 0.9);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-6);
}

.footer-col__links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-col__links a {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-col__links a:hover {
    color: var(--color-white);
    transform: translateX(3px);
}

.footer-bottom {
    padding-top: var(--space-8);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-bottom__copy {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.3);
}

.footer-bottom__links {
    display: flex;
    gap: var(--space-6);
}

.footer-bottom__links a {
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.3);
    transition: color var(--transition-fast);
}

.footer-bottom__links a:hover {
    color: rgba(255, 255, 255, 0.7);
}

/* ============================================
   PAGE TEMPLATE (for inner pages)
   ============================================ */
.page-content {
    max-width: var(--container-narrow);
}

.page-content h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-6);
}

.page-content p {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-5);
    font-size: var(--font-size-lg);
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 {
    transition-delay: 0.08s;
}

.reveal-delay-2 {
    transition-delay: 0.16s;
}

.reveal-delay-3 {
    transition-delay: 0.24s;
}

.reveal-delay-4 {
    transition-delay: 0.32s;
}

/* ============================================
   WP ADMIN BAR OFFSET
   ============================================ */
body.admin-bar .site-header {
    top: 32px;
}

@media (max-width: 782px) {
    body.admin-bar .site-header {
        top: 46px;
    }
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero__grid {
        gap: var(--space-10);
    }

    .hero__title {
        font-size: var(--font-size-4xl);
    }

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

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

    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }

    .about-preview {
        gap: var(--space-12);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }

    .hero__grid {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .hero {
        padding: var(--space-12) 0 var(--space-16);
    }

    .hero__content {
        padding-top: 0;
        text-align: center;
    }

    .hero__subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__actions {
        justify-content: center;
    }

    .hero__float {
        left: auto;
        right: var(--space-4);
        bottom: var(--space-4);
    }

    .category-grid {
        grid-template-columns: 1fr;
        gap: var(--space-5);
    }

    .articles-grid {
        grid-template-columns: 1fr;
        gap: var(--space-5);
    }

    .trust-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4);
    }

    .about-preview {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .container {
        padding-left: var(--space-5);
        padding-right: var(--space-5);
    }

    .section {
        padding-top: var(--space-16);
        padding-bottom: var(--space-16);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .section-header {
        margin-bottom: var(--space-10);
    }

    /* Mobile nav */
    .menu-toggle {
        display: flex;
        flex-direction: column;
        gap: 0;
    }

    .primary-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(16px);
        padding: var(--space-6);
        display: none;
        z-index: 999;
    }

    .primary-nav.open {
        display: block;
    }

    .primary-nav .menu {
        flex-direction: column;
        gap: var(--space-1);
    }

    .primary-nav .menu-item a {
        width: 100%;
        padding: var(--space-4) var(--space-5);
        font-size: var(--font-size-lg);
        border-radius: var(--radius-md);
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

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

    body.admin-bar .primary-nav {
        top: calc(var(--header-height) + 46px);
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: var(--font-size-2xl);
    }

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

    .hero__actions .btn {
        width: 100%;
    }

    .about-preview__stats {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-3);
    }

    .about-preview__card {
        padding: var(--space-6);
    }

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

    .trust-item {
        padding: var(--space-6) var(--space-4);
    }

    .about-preview__title {
        font-size: var(--font-size-2xl);
    }
}