/* ===================================
   Level Executive Summit 2026 — Recap
   =================================== */

:root {
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray: #D9DEF0;
    --color-blue: #86D5F4;
    --color-pink: #FD6EF8;
    --color-green: #8EE34D;
    --color-orange: #FFAA53;
    --color-gray-50: #fafafa;
    --color-gray-100: #f4f4f5;
    --color-gray-200: #e4e4e7;
    --color-gray-300: #d4d4d8;
    --color-gray-400: #a1a1aa;
    --color-gray-500: #71717a;
    --color-gray-600: #52525b;
    --color-gray-700: #3f3f46;
    --color-gray-800: #27272a;
    --color-gray-900: #18181b;
    --font-headlines: 'Inter Tight', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --spacing-4xl: 8rem;
    --max-width: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

h1, h2, h3, h4 {
    margin: 0 0 var(--spacing-md);
    font-family: var(--font-headlines);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(3rem, 8vw, 5.5rem); font-weight: 900; }
h2 { font-size: clamp(2rem, 5vw, 3.5rem); }
h3 { font-size: 1.5rem; }
p { margin: 0 0 var(--spacing-md); }
img { image-orientation: from-image; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

.content-hidden { display: none; }

/* ============ PASSWORD GATE ============ */

.gate {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-black);
}

.gate-inner {
    text-align: center;
    max-width: 440px;
    padding: var(--spacing-lg);
}

.gate-logo {
    width: 120px;
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
}

.gate h1 {
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.gate-subtitle {
    color: var(--color-gray-400);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-2xl);
}

.gate-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.gate-form input {
    width: 100%;
    padding: 0.875rem 1.25rem;
    font-size: 1rem;
    font-family: var(--font-body);
    border: 1px solid var(--color-gray-700);
    border-radius: 8px;
    background: var(--color-gray-900);
    color: var(--color-white);
    outline: none;
    transition: border-color 0.2s;
}

.gate-form input:focus {
    border-color: var(--color-gray-400);
}

.gate-form button {
    padding: 0.875rem 1.25rem;
    font-size: 1rem;
    font-family: var(--font-headlines);
    font-weight: 600;
    border: none;
    border-radius: 8px;
    background: var(--color-white);
    color: var(--color-black);
    cursor: pointer;
    transition: opacity 0.2s;
}

.gate-form button:hover { opacity: 0.85; }

.gate-error {
    color: #f87171;
    font-size: 0.875rem;
    margin: 0;
}

.gate-help {
    margin-top: var(--spacing-2xl);
    font-size: 0.8125rem;
    color: var(--color-gray-500);
    line-height: 1.6;
}

.gate-help a {
    color: var(--color-gray-300);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.gate-help a:hover {
    color: var(--color-white);
}

/* ============ HERO ============ */

.hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 30%;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.92) 0%, rgba(0,0,0,0.7) 40%, rgba(0,0,0,0.45) 70%, rgba(0,0,0,0.3) 100%);
}

.nav {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-lg);
    z-index: 2;
}

.logo-img { height: 72px; }

/* Nav Social Links */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-social {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-social-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: rgba(255,255,255,0.9);
    margin-right: 4px;
}

.nav-social a {
    color: var(--color-white);
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
    width: 36px;
    height: 36px;
    justify-content: center;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
}

.nav-social a svg {
    width: 18px;
    height: 18px;
}

.nav-social a:hover {
    opacity: 0.8;
    background: rgba(255,255,255,0.25);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    width: 100%;
}

.event-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-sm);
}

.hero h1 { color: var(--color-white); margin-bottom: var(--spacing-sm); }

.tagline {
    font-size: clamp(1.25rem, 2.5vw, 1.625rem);
    color: var(--color-white);
    max-width: 600px;
    font-weight: 400;
    text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}

.hero-detail {
    font-size: 1.0625rem;
    color: var(--color-gray-200);
    text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}

/* ============ SECTIONS ============ */

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

.section-label {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-sm);
}

/* ============ THEMES ============ */

.themes-section {
    background: var(--color-gray-50);
}

.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.theme-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 12px;
    padding: var(--spacing-xl);
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.theme-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.theme-number {
    font-family: var(--font-headlines);
    font-weight: 800;
    font-size: 2rem;
    color: var(--color-gray-200);
    margin-bottom: var(--spacing-sm);
}

.theme-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.theme-card p {
    color: var(--color-gray-600);
    font-size: 0.9375rem;
    margin: 0;
    line-height: 1.7;
}

/* ============ SESSIONS ============ */

.sessions-section h2 {
    margin-bottom: var(--spacing-2xl);
}

.session-card {
    border: 1px solid var(--color-gray-200);
    border-radius: 12px;
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    background: var(--color-white);
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.session-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.session-keynote {
    border-color: var(--color-black);
    border-width: 2px;
    background: var(--color-gray-50);
}

.session-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.session-meta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    min-width: 48px;
}

.session-number {
    font-family: var(--font-headlines);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--color-gray-300);
    line-height: 1;
}

.session-time {
    font-size: 0.75rem;
    color: var(--color-gray-400);
    white-space: nowrap;
}

.session-title-block {
    flex: 1;
}

.session-badge {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    background: var(--color-black);
    color: var(--color-white);
    padding: 3px 10px;
    border-radius: 4px;
    margin-bottom: var(--spacing-xs);
}

.session-title-block h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.375rem;
}

.session-speakers {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    color: var(--color-gray-500);
    font-size: 0.9375rem;
}

.speaker-thumb {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-white);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.session-logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
    flex-shrink: 0;
    opacity: 0.7;
}

.session-body { padding-left: 66px; }

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

.takeaways li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray-700);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.takeaways li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 6px;
    height: 6px;
    background: var(--color-gray-300);
    border-radius: 50%;
}

.takeaways li strong {
    color: var(--color-black);
    font-weight: 600;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.625rem 1.25rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-black);
    background: var(--color-gray-100);
    border: 1px solid var(--color-gray-200);
    border-radius: 8px;
    text-decoration: none;
    transition: background 0.2s, border-color 0.2s;
}

.download-btn::before {
    content: '\2193';
    font-size: 1.1em;
}

.download-btn:hover {
    background: var(--color-gray-200);
    border-color: var(--color-gray-300);
}

/* ============ GALLERY ============ */

.gallery-section {
    background: var(--color-gray-50);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-2xl);
}

.gallery-item {
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.gallery-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.gallery-wide {
    grid-column: span 2;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4 / 3;
    display: block;
    transition: transform 0.3s;
}

.gallery-wide img {
    aspect-ratio: 16 / 9;
}

.gallery-item:hover img {
    transform: scale(1.03);
}

/* ============ LIGHTBOX ============ */

.lightbox[hidden] {
    display: none;
}

.lightbox {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(0,0,0,0.92);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.lightbox img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 4px;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    font-size: 2rem;
    padding: var(--spacing-sm);
    opacity: 0.7;
    transition: opacity 0.2s;
    z-index: 2;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover { opacity: 1; }

.lightbox-close { top: var(--spacing-lg); right: var(--spacing-lg); font-size: 2.5rem; }
.lightbox-prev { left: var(--spacing-lg); top: 50%; transform: translateY(-50%); font-size: 3rem; }
.lightbox-next { right: var(--spacing-lg); top: 50%; transform: translateY(-50%); font-size: 3rem; }

/* ============ QUOTE ============ */

.quote-section {
    padding: var(--spacing-4xl) 0;
    background: var(--color-black);
    text-align: center;
}

.quote-section blockquote {
    margin: 0;
    padding: 0;
}

.quote-section p {
    font-family: var(--font-headlines);
    font-size: clamp(1.5rem, 3.5vw, 2.5rem);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-white);
    letter-spacing: -0.02em;
}

.quote-section cite {
    display: block;
    margin-top: var(--spacing-lg);
    font-style: normal;
    font-size: 1rem;
    color: var(--color-gray-400);
}

/* ============ FOOTER ============ */

.footer {
    background: var(--color-gray-900);
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.footer-logo {
    height: 24px;
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

.footer p {
    color: var(--color-gray-400);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.footer-note {
    font-size: 0.8125rem;
    color: var(--color-gray-600);
}

/* ============ STICKY SURVEY CTA ============ */

.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9000;
    background: var(--color-black);
    border-top: 1px solid var(--color-gray-800);
    padding: 0.75rem var(--spacing-lg);
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.sticky-cta.visible {
    transform: translateY(0);
}

.sticky-cta-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.sticky-cta-inner span {
    color: var(--color-gray-300);
    font-size: 0.9375rem;
    font-weight: 500;
}

.sticky-cta-btn {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    font-family: var(--font-headlines);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-black);
    background: var(--color-white);
    border-radius: 6px;
    text-decoration: none;
    transition: opacity 0.2s;
    white-space: nowrap;
}

.sticky-cta-btn:hover { opacity: 0.85; }

/* ============ RESPONSIVE ============ */

@media (max-width: 768px) {
    .hero { min-height: 60vh; }

    .session-header {
        flex-direction: column;
    }

    .session-meta {
        flex-direction: row;
        gap: var(--spacing-sm);
    }

    .session-card {
        padding: var(--spacing-lg);
    }

    .session-body {
        padding-left: 0;
    }

    .session-logo {
        display: none;
    }

    .section {
        padding: var(--spacing-3xl) 0;
    }

    .quote-section p {
        font-size: 1.375rem;
    }

    .gallery-wide {
        grid-column: span 1;
    }

    .gallery-grid {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }

    .gallery-item img {
        aspect-ratio: 1 / 1;
    }

    .gallery-wide img {
        aspect-ratio: 2 / 1;
    }

    .themes-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .theme-card {
        padding: var(--spacing-lg);
        opacity: 1;
        transform: none;
    }

    .session-card {
        opacity: 1;
        transform: none;
    }

    .gallery-item {
        opacity: 1;
        transform: none;
    }

    .lightbox-prev { left: var(--spacing-xs); }
    .lightbox-next { right: var(--spacing-xs); }

    .nav {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }

    .logo-img { height: 48px; }

    .nav-social-label { display: none; }

    .nav-social { gap: 8px; }

    .nav-social a {
        width: 32px;
        height: 32px;
    }

    .nav-social a svg {
        width: 16px;
        height: 16px;
    }

    .hero-content {
        padding-top: var(--spacing-xl);
    }

    .event-label {
        font-size: 0.75rem;
    }

    .sticky-cta-inner {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .gate h1 { font-size: 2.5rem; }
    .gallery-grid { grid-template-columns: 1fr; }
}