/* ============================================================
   ArkoConsulting Education — Complete Stylesheet
   Multi-page: index (catalogue), AI programme, Food Sovereignty
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
    --bg: #F8F9FC;
    --bg-section: #EEF1F8;
    --bg-card: #FFFFFF;
    --bg-dark: #1A1D2E;
    --text: #1A1D2E;
    --text-muted: #5C6378;
    --text-light: #8B92A5;
    --accent: #E8890C;
    --accent-light: #F0A040;
    --accent-glow: rgba(232, 137, 12, 0.08);
    --blue: #2563EB;
    --blue-light: #4B83F0;
    --blue-pale: rgba(37, 99, 235, 0.08);
    --green: #059669;
    --green-pale: rgba(5, 150, 105, 0.08);
    --purple: #7C3AED;
    --purple-pale: rgba(124, 58, 237, 0.08);
    --gold: #D97706;
    --gold-pale: rgba(217, 119, 6, 0.08);
    --foodsov-green: #4A7C59;
    --foodsov-green-light: #5D9A6F;
    --foodsov-green-pale: rgba(74, 124, 89, 0.08);
    --navy: #1B4F72;
    --navy-light: #2E86C1;
    --navy-pale: rgba(27, 79, 114, 0.08);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 6px;
    --shadow: 0 1px 3px rgba(26, 29, 46, 0.06), 0 1px 2px rgba(26, 29, 46, 0.04);
    --shadow-md: 0 4px 12px rgba(26, 29, 46, 0.08), 0 2px 4px rgba(26, 29, 46, 0.04);
    --shadow-lg: 0 10px 30px rgba(26, 29, 46, 0.1), 0 4px 8px rgba(26, 29, 46, 0.04);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --page-accent: #E8890C;
    --page-accent-light: #F0A040;
    --page-accent-glow: rgba(232, 137, 12, 0.08);
}

/* ---- Page-specific accent colors ---- */
.page-index {
    --page-accent: #E8890C;
    --page-accent-light: #F0A040;
    --page-accent-glow: rgba(232, 137, 12, 0.08);
}

.page-ai {
    --page-accent: #2563EB;
    --page-accent-light: #4B83F0;
    --page-accent-glow: rgba(37, 99, 235, 0.08);
}

.page-foodsov {
    --page-accent: #4A7C59;
    --page-accent-light: #5D9A6F;
    --page-accent-glow: rgba(74, 124, 89, 0.08);
}

.page-terradata {
    --page-accent: #1B4F72;
    --page-accent-light: #2E86C1;
    --page-accent-glow: rgba(27, 79, 114, 0.08);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img, svg {
    display: block;
    max-width: 100%;
}

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

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

ul, ol {
    list-style: none;
}

/* ---- Container ---- */
.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================================
   PROGRESS BAR — Page accent
   ============================================================ */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0;
    z-index: 9999;
    transition: width 0.1s linear;
}

.page-index .progress-bar {
    background: linear-gradient(90deg, var(--accent), var(--blue), var(--purple));
}

.page-ai .progress-bar {
    background: linear-gradient(90deg, #1D4ED8, #2563EB, #60A5FA);
}

.page-foodsov .progress-bar {
    background: linear-gradient(90deg, #2D5A3A, #4A7C59, #6B9E7B);
}

.page-terradata .progress-bar {
    background: linear-gradient(90deg, #1B4F72, #2E86C1, #5DADE2);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(248, 249, 252, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(209, 213, 224, 0.5);
    transform: translateY(-100%);
    transition: transform 0.3s ease;
}

.nav.visible {
    transform: translateY(0);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
    height: 60px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 15px;
    color: var(--text);
}

.nav-logo svg {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.nav-logo-text {
    white-space: nowrap;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-links a {
    display: inline-block;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    border-radius: var(--radius-xs);
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--page-accent);
    background: var(--page-accent-glow);
}

.nav-back {
    font-weight: 600 !important;
    color: var(--page-accent) !important;
}

.nav-lang {
    display: inline-block;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-light);
    border-left: 1px solid rgba(209, 213, 224, 0.5);
    margin-left: 8px;
    padding-left: 20px;
}

.nav-lang strong {
    color: var(--page-accent);
    font-weight: 700;
}

.lang-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.lang-link:hover {
    color: var(--page-accent);
}

.lang-link.lang-active {
    color: var(--page-accent);
    font-weight: 700;
}

.lang-sep {
    color: var(--text-light);
    margin: 0 2px;
}

/* Hamburger */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 6px;
}

.nav-hamburger span {
    display: block;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.active span:nth-child(2) {
    opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   HERO — Page accent gradients
   ============================================================ */
.hero {
    position: relative;
    padding: 140px 0 100px;
    overflow: hidden;
}

.page-index .hero {
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-section) 100%);
}

.page-ai .hero {
    background: linear-gradient(180deg, var(--bg) 0%, rgba(37, 99, 235, 0.04) 50%, var(--bg-section) 100%);
}

.page-foodsov .hero {
    background: linear-gradient(180deg, var(--bg) 0%, rgba(74, 124, 89, 0.04) 50%, var(--bg-section) 100%);
}

.page-terradata .hero {
    background: linear-gradient(180deg, var(--bg) 0%, rgba(27, 79, 114, 0.04) 50%, var(--bg-section) 100%);
}

/* UAV Portfolio Image Cards */
.uav-img-card {
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid rgba(209, 213, 224, 0.4);
    transition: var(--transition);
    cursor: pointer;
}

.uav-img-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--navy);
}

.uav-img-card img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    display: block;
}

.uav-img-caption {
    padding: 10px 12px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.4;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.uav-img-caption span {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-light);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

.hero-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--page-accent);
    background: var(--page-accent-glow);
    border: 1px solid rgba(0, 0, 0, 0.06);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 600px;
}

/* Programme page hero meta line (replaces stats on detail pages) */
.hero-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 36px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

.hero-meta-item {
    padding: 6px 14px;
    background: rgba(255,255,255,0.7);
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 20px;
    backdrop-filter: blur(4px);
}

.hero-meta-sep {
    color: var(--text-light);
    font-size: 12px;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    margin-bottom: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
    letter-spacing: -0.02em;
}

.stat-suffix {
    display: inline;
    font-size: 20px;
    font-weight: 600;
    color: var(--page-accent);
}

.stat-label {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 4px;
}

/* Hero CTA */
.hero-cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    text-decoration: none;
}

.btn--primary {
    background: var(--page-accent);
    color: #fff;
}

.btn--primary:hover {
    background: var(--page-accent-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn--green {
    background: var(--foodsov-green);
}

.btn--navy {
    background: var(--navy);
}

.btn--navy:hover {
    background: var(--navy-light);
}

.btn--green:hover {
    background: var(--foodsov-green-light);
}

.btn--outline {
    background: transparent;
    color: var(--text);
    border: 1.5px solid #D1D5E0;
}

.btn--outline:hover {
    border-color: var(--page-accent);
    color: var(--page-accent);
    background: var(--page-accent-glow);
}

.btn--full {
    width: 100%;
}

/* Hero decorative circles */
.hero-decoration {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 50%;
    pointer-events: none;
}

.hero-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.6;
}

.page-index .hero-circle--1,
.page-ai .hero-circle--1 {
    width: 400px;
    height: 400px;
    top: 10%;
    right: -5%;
    background: radial-gradient(circle, var(--blue-pale) 0%, transparent 70%);
}

.page-index .hero-circle--2,
.page-ai .hero-circle--2 {
    width: 300px;
    height: 300px;
    top: 40%;
    right: 15%;
    background: radial-gradient(circle, var(--purple-pale) 0%, transparent 70%);
}

.page-index .hero-circle--3,
.page-ai .hero-circle--3 {
    width: 200px;
    height: 200px;
    top: 20%;
    right: 30%;
    background: radial-gradient(circle, var(--page-accent-glow) 0%, transparent 70%);
}

.page-foodsov .hero-circle--1 {
    width: 400px;
    height: 400px;
    top: 10%;
    right: -5%;
    background: radial-gradient(circle, var(--foodsov-green-pale) 0%, transparent 70%);
}

.page-foodsov .hero-circle--2 {
    width: 300px;
    height: 300px;
    top: 40%;
    right: 15%;
    background: radial-gradient(circle, var(--green-pale) 0%, transparent 70%);
}

.page-foodsov .hero-circle--3 {
    width: 200px;
    height: 200px;
    top: 20%;
    right: 30%;
    background: radial-gradient(circle, var(--foodsov-green-pale) 0%, transparent 70%);
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
    padding: 100px 0;
}

.section--alt {
    background: var(--bg-section);
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--page-accent);
    background: var(--page-accent-glow);
    border: 1px solid rgba(0, 0, 0, 0.04);
    padding: 5px 14px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 12px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ============================================================
   CATALOGUE GRID (index.html legacy — kept for backwards compat)
   ============================================================ */
.catalogue-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.catalogue-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(209, 213, 224, 0.4);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

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

.catalogue-card--flagship {
    border-color: var(--accent);
    border-width: 2px;
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(232, 137, 12, 0.03) 100%);
}

.catalogue-card-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 16px;
    align-self: flex-start;
}

.catalogue-card-badge--accent { color: #fff; background: var(--accent); }
.catalogue-card-badge--green { color: var(--green); background: var(--green-pale); border: 1px solid rgba(5, 150, 105, 0.15); }
.catalogue-card-badge--soon { color: var(--text-light); background: var(--bg-section); border: 1px solid #E2E5EC; }

.catalogue-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.catalogue-icon--accent { background: var(--accent-glow); color: var(--accent); }
.catalogue-icon--blue { background: var(--blue-pale); color: var(--blue); }
.catalogue-icon--green { background: var(--green-pale); color: var(--green); }
.catalogue-icon--purple { background: var(--purple-pale); color: var(--purple); }

.catalogue-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.3;
}

.catalogue-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}

.catalogue-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.catalogue-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    transition: var(--transition);
    margin-top: auto;
}

.catalogue-cta:hover { gap: 10px; }
.catalogue-cta svg { transition: var(--transition); }

/* ============================================================
   PROGRAMMES GRID — Index page training catalogue
   ============================================================ */
.programmes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.programme-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    background: var(--bg-card);
    border: 1px solid rgba(209, 213, 224, 0.4);
}

.programme-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.programme-card-accent {
    height: 4px;
    width: 100%;
}

.programme-card--ai .programme-card-accent {
    background: linear-gradient(90deg, #1D4ED8, #2563EB, #60A5FA);
}

.programme-card--foodsov .programme-card-accent {
    background: linear-gradient(90deg, #2D5A3A, #4A7C59, #6B9E7B);
}

.programme-card--ai:hover {
    border-color: var(--blue);
}

.programme-card--foodsov:hover {
    border-color: var(--foodsov-green);
}

.programme-card--terradata .programme-card-accent {
    background: linear-gradient(90deg, #1B4F72, #2E86C1, #5DADE2);
}

.programme-card--terradata:hover {
    border-color: var(--navy);
}

.programme-card-inner {
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
}

.programme-card-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 16px;
    align-self: flex-start;
}

.programme-card-badge--blue {
    color: var(--blue);
    background: var(--blue-pale);
    border: 1px solid rgba(37, 99, 235, 0.15);
}

.programme-card-badge--green {
    color: var(--foodsov-green);
    background: var(--foodsov-green-pale);
    border: 1px solid rgba(74, 124, 89, 0.15);
}

.programme-card-badge--navy {
    color: var(--navy);
    background: var(--navy-pale);
    border: 1px solid rgba(27, 79, 114, 0.15);
}

.programme-card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.programme-card-icon--blue {
    background: var(--blue-pale);
    color: var(--blue);
}

.programme-card-icon--green {
    background: var(--foodsov-green-pale);
    color: var(--foodsov-green);
}

.programme-card-icon--navy {
    background: var(--navy-pale);
    color: var(--navy);
}

.programme-card-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 12px;
    line-height: 1.25;
}

.programme-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 16px;
}

.programme-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.programme-meta-item svg {
    color: var(--text-light);
    flex-shrink: 0;
    display: inline-block;
}

.programme-card-desc {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 20px;
    flex: 1;
}

.programme-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 24px;
}

.programme-card-footer {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid #E2E5EC;
}

.programme-card-modules {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.programme-card-cta {
    padding: 12px 24px;
    font-size: 14px;
    align-self: flex-start;
}

/* ============================================================
   PROGRAMME TIMELINE (AI detail page)
   ============================================================ */
.programme-timeline {
    overflow-x: auto;
    padding-bottom: 8px;
}

.timeline-track {
    display: flex;
    align-items: flex-start;
    gap: 0;
    min-width: 800px;
}

.timeline-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
}

.timeline-step-number {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--page-accent);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.timeline-step-content h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
}

.timeline-step-content p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.timeline-step-hours {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--page-accent);
    background: var(--page-accent-glow);
    padding: 3px 10px;
    border-radius: 100px;
}

.timeline-connector {
    width: 60px;
    height: 2px;
    background: #D1D5E0;
    margin-top: 22px;
    flex-shrink: 0;
}

/* ============================================================
   PROGRAMME DAYS GRID (Food sovereignty)
   ============================================================ */
.programme-days-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.programme-day-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid rgba(209, 213, 224, 0.4);
}

.programme-day-header {
    padding: 24px 28px;
    color: #fff;
}

.programme-day-header--1 {
    background: linear-gradient(135deg, #2D5A3A, #4A7C59);
}

.programme-day-header--2 {
    background: linear-gradient(135deg, #3A5C2D, #5D9A6F);
}

.programme-day-header h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}

.programme-day-hours {
    font-size: 13px;
    opacity: 0.8;
}

.programme-day-sessions {
    padding: 16px 20px;
}

.programme-session {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 8px;
    border-bottom: 1px solid #F0F1F5;
    transition: var(--transition);
}

.programme-session:last-child {
    border-bottom: none;
}

.programme-session:hover {
    background: var(--bg-section);
    border-radius: var(--radius-xs);
}

.programme-session--exercise {
    background: rgba(232, 137, 12, 0.03);
}

.programme-session--case {
    background: rgba(37, 99, 235, 0.03);
}

.programme-session-time {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-light);
    min-width: 100px;
    flex-shrink: 0;
}

.programme-session-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    flex: 1;
}

.programme-session-tag {
    flex-shrink: 0;
}

/* Tags */
.tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 100px;
    margin-top: 4px;
}

.tag--blue { color: var(--blue); background: var(--blue-pale); }
.tag--accent { color: var(--accent); background: var(--accent-glow); }
.tag--green { color: var(--green); background: var(--green-pale); }
.tag--purple { color: var(--purple); background: var(--purple-pale); }
.tag--navy { color: var(--navy); background: var(--navy-pale); }

/* ============================================================
   ACCORDIONS
   ============================================================ */
.accordion {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid rgba(209, 213, 224, 0.4);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}

.accordion:hover {
    box-shadow: var(--shadow-md);
}

.accordion-header {
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
    padding: 20px 24px;
    text-align: left;
    transition: var(--transition);
}

.accordion-header:hover {
    background: var(--bg-section);
}

.accordion-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.accordion-icon--blue { background: var(--blue-pale); color: var(--blue); }
.accordion-icon--accent { background: var(--accent-glow); color: var(--accent); }
.accordion-icon--green { background: var(--green-pale); color: var(--green); }
.accordion-icon--purple { background: var(--purple-pale); color: var(--purple); }

.accordion-header-text {
    flex: 1;
    min-width: 0;
}

.accordion-day {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.accordion-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-top: 2px;
    line-height: 1.3;
}

.accordion-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
    flex-wrap: wrap;
}

.accordion-chevron {
    color: var(--text-light);
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.accordion-header[aria-expanded="true"] .accordion-chevron {
    transform: rotate(180deg);
}

/* Accordion body */
.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-body.open {
    max-height: 2000px;
}

.accordion-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 32px;
    padding: 0 24px 28px;
    border-top: 1px solid #E2E5EC;
    padding-top: 24px;
}

.accordion-block {
    margin-bottom: 20px;
}

.accordion-block:last-child {
    margin-bottom: 0;
}

.accordion-block-title {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-light);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.accordion-block-title svg {
    display: inline-block;
}

.accordion-block p,
.accordion-list li {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

.accordion-list {
    padding-left: 0;
}

.accordion-list li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 6px;
}

.accordion-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--page-accent);
}

.accordion-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 16px;
}

.pill {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 100px;
}

.pill--blue { color: var(--blue); background: var(--blue-pale); }
.pill--accent { color: var(--accent); background: var(--accent-glow); }
.pill--green { color: var(--green); background: var(--green-pale); }
.pill--purple { color: var(--purple); background: var(--purple-pale); }

/* Accordion side */
.accordion-side {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.accordion-exercise,
.accordion-output {
    padding: 16px;
    border-radius: var(--radius-sm);
    background: var(--bg-section);
    border: 1px solid #E2E5EC;
}

.accordion-exercise p,
.accordion-output p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

.accordion-duration-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--page-accent);
    background: var(--page-accent-glow);
    border: 1px solid rgba(0, 0, 0, 0.04);
    padding: 8px 16px;
    border-radius: 100px;
    align-self: flex-start;
}

.accordion-duration-badge svg {
    display: inline-block;
}

/* ============================================================
   APPROACH — PILLARS
   ============================================================ */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 56px;
}

.pillar-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(209, 213, 224, 0.4);
    transition: var(--transition);
}

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

.pillar-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.pillar-icon--accent { background: var(--accent-glow); color: var(--accent); }
.pillar-icon--blue { background: var(--blue-pale); color: var(--blue); }
.pillar-icon--green { background: var(--green-pale); color: var(--green); }

.pillar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
}

.pillar-list {
    padding-left: 0;
}

.pillar-list li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

.pillar-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--page-accent);
}

/* ============================================================
   APPROACH — FORMULAS TABLE
   ============================================================ */
.formulas-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    text-align: center;
    margin-bottom: 24px;
}

.formulas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

.formula-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 28px 24px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(209, 213, 224, 0.4);
    text-align: center;
    transition: var(--transition);
}

.formula-card:hover {
    box-shadow: var(--shadow-md);
}

.formula-card--highlighted {
    border-color: var(--page-accent);
    border-width: 2px;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--page-accent-glow) 100%);
}

.formula-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 5px 14px;
    border-radius: 100px;
    color: #fff;
    margin-bottom: 20px;
}

.formula-badge--blue { background: var(--blue); }
.formula-badge--accent { background: var(--accent); }
.formula-badge--purple { background: var(--purple); }

.formula-detail {
    padding: 10px 0;
    border-bottom: 1px solid #E2E5EC;
}

.formula-detail:last-child {
    border-bottom: none;
}

.formula-label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-light);
    margin-bottom: 4px;
}

.formula-value {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}

/* ============================================================
   TOOLS SECTION (AI page)
   ============================================================ */
.tools-card {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(209, 213, 224, 0.4);
}

.tools-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    background: var(--page-accent-glow);
    color: var(--page-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tools-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.tools-desc {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.7;
}

.tools-desc strong {
    color: var(--text);
    font-weight: 600;
}

/* ============================================================
   EXPERIENCE SECTION
   ============================================================ */
.experience-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
    margin-bottom: 56px;
    padding: 40px 0;
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid rgba(209, 213, 224, 0.4);
}

.exp-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.exp-stat-number {
    font-size: 42px;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
    letter-spacing: -0.02em;
}

.exp-stat-suffix {
    display: inline;
    font-size: 22px;
    font-weight: 600;
    color: var(--page-accent);
}

.exp-stat-label {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 6px;
    font-weight: 500;
}

/* Departments */
.departments-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.dept-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(209, 213, 224, 0.4);
    transition: var(--transition);
}

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

.dept-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.dept-icon--accent { background: var(--accent-glow); color: var(--accent); }
.dept-icon--blue { background: var(--blue-pale); color: var(--blue); }
.dept-icon--purple { background: var(--purple-pale); color: var(--purple); }

.dept-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.dept-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Clients */
.clients-section {
    text-align: center;
    padding: 40px 0 0;
    border-top: 1px solid #E2E5EC;
}

.clients-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-light);
    margin-bottom: 16px;
}

.clients-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 24px;
}

.client-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
}

.client-dot {
    color: var(--text-light);
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 600;
    color: var(--page-accent);
    transition: var(--transition);
}

.portfolio-link:hover { gap: 10px; }
.portfolio-link svg { transition: var(--transition); }

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: start;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid #D1D5E0;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: var(--font);
    color: var(--text);
    background: var(--bg-card);
    transition: var(--transition);
    outline: none;
}

.form-input:focus {
    border-color: var(--page-accent);
    box-shadow: 0 0 0 3px var(--page-accent-glow);
}

.form-input::placeholder {
    color: var(--text-light);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    font-size: 14px;
    min-height: 20px;
    text-align: center;
}

.form-status--success { color: var(--green); }
.form-status--error { color: #DC2626; }

/* Contact info */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-info-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(209, 213, 224, 0.4);
}

.contact-info-card--highlight {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--page-accent-glow) 100%);
    border-color: rgba(0, 0, 0, 0.06);
}

.contact-info-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
}

.contact-detail {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-muted);
}

.contact-detail svg {
    color: var(--text-light);
    flex-shrink: 0;
}

.contact-detail a {
    color: var(--text-muted);
    transition: var(--transition);
}

.contact-detail a:hover {
    color: var(--page-accent);
}

.contact-highlight-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--page-accent);
    margin-bottom: 8px;
}

.contact-highlight-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 48px 0 32px;
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.footer-name {
    display: block;
    color: #fff;
    font-size: 15px;
    font-weight: 700;
}

.footer-tagline {
    display: block;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 2px;
}

.footer-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-credit {
    margin-top: 8px;
    font-size: 12px !important;
    color: rgba(255, 255, 255, 0.25) !important;
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--page-accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: var(--transition);
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--page-accent-light);
    transform: translateY(-2px);
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================================
   RESPONSIVE — TABLET (max-width: 1024px)
   ============================================================ */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 44px;
    }

    .hero {
        padding: 120px 0 80px;
    }

    .hero-decoration {
        opacity: 0.4;
    }

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

    .programmes-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .programme-days-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .pillars-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .formulas-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .departments-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .accordion-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .experience-stats {
        gap: 32px;
    }

    .tools-card {
        flex-direction: column;
    }

    .timeline-track {
        min-width: 700px;
    }

    .nav-hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(248, 249, 252, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 16px 24px;
        gap: 4px;
        border-bottom: 1px solid rgba(209, 213, 224, 0.5);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-links a {
        padding: 10px 12px;
        font-size: 15px;
    }

    .nav-lang {
        border-left: none;
        margin-left: 0;
        padding-left: 12px;
        padding-top: 8px;
        border-top: 1px solid rgba(209, 213, 224, 0.3);
        margin-top: 4px;
    }
}

/* ============================================================
   RESPONSIVE — MOBILE (max-width: 640px)
   ============================================================ */
@media (max-width: 640px) {
    .hero {
        padding: 100px 0 64px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-number {
        font-size: 28px;
    }

    .hero-cta {
        flex-direction: column;
    }

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

    .section {
        padding: 64px 0;
    }

    .section-title {
        font-size: 28px;
    }

    .experience-stats {
        gap: 24px;
        padding: 28px 16px;
    }

    .exp-stat-number {
        font-size: 32px;
    }

    .accordion-header {
        padding: 16px 16px;
        gap: 12px;
    }

    .accordion-grid {
        padding: 0 16px 20px;
        padding-top: 20px;
    }

    .accordion-icon {
        width: 36px;
        height: 36px;
    }

    .accordion-title {
        font-size: 14px;
    }

    .programme-card-title {
        font-size: 18px;
    }

    .programme-card-inner {
        padding: 24px 20px;
    }

    .programme-session-time {
        min-width: 80px;
        font-size: 11px;
    }

    .programme-session-title {
        font-size: 13px;
    }

    .timeline-track {
        min-width: 600px;
    }

    .footer-links {
        gap: 12px;
    }

    .footer-top {
        flex-direction: column;
        align-items: flex-start;
    }

    .clients-logos {
        gap: 4px;
    }

    .client-name {
        font-size: 13px;
    }

    /* Force inline grids responsive on mobile */
    .grid-2, .grid-3, .grid-4, .grid-5 {
        grid-template-columns: 1fr 1fr !important;
    }

    .grid-1x1 {
        grid-template-columns: 1fr !important;
    }

    .formulas-grid[style] {
        grid-template-columns: 1fr !important;
    }

    /* CTA blocks stack on mobile */
    [style*="justify-content: space-between"] {
        flex-direction: column !important;
        text-align: center !important;
    }

    /* Hero meta pills wrap */
    .hero-meta {
        justify-content: center;
    }

    .hero-meta-sep {
        display: none;
    }

    /* UAV gallery images full aspect on mobile */
    .uav-img-card img {
        aspect-ratio: 16/9;
    }

    /* Lightbox padding on mobile */
    #lightbox img {
        max-width: 96vw !important;
        max-height: 80vh !important;
    }

    /* Footer tagline wrap */
    .footer-tagline {
        font-size: 11px;
        line-height: 1.6;
    }
}