/* ===== SUMMIT DESIGN TOKENS ===== */
:root {
    --summit-dark: #06050e;
    --summit-deep: #0b0919;
    --summit-card: #13102a;
    --summit-border: rgba(139, 92, 246, 0.15);
    --summit-accent: #8B5CF6;
    --summit-accent-light: #A78BFA;
    --summit-cyan: #22D3EE;
    --summit-cyan-light: #67E8F9;
    --summit-gold: #FBBF24;
    --summit-glow: rgba(139, 92, 246, 0.25);
    --summit-text: #f0f0f8;
    --summit-text-dim: #c0c0da;
}

/* ===== SUMMIT HERO ===== */
.summit-hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    position: relative;
    color: #fff;
    overflow: hidden;
}
.summit-hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(145deg, #080520 0%, #1a0a3a 30%, #0e1e42 60%, #061420 100%);
    z-index: 0;
}
.summit-hero-bg::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -30%;
    width: 900px;
    height: 900px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139,92,246,0.15) 0%, transparent 65%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}
.summit-hero-bg::after {
    content: "";
    position: absolute;
    bottom: -40%;
    right: -20%;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(34,211,238,0.12) 0%, transparent 65%);
    animation: heroGlow 10s ease-in-out infinite alternate-reverse;
}
@keyframes heroGlow {
    0% { transform: scale(1) translate(0,0); }
    100% { transform: scale(1.3) translate(30px, -20px); }
}
.summit-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(6,5,14,0.2) 0%, rgba(6,5,14,0.65) 100%);
    z-index: 1;
}
.summit-hero .container {
    position: relative;
    z-index: 2;
    padding-top: 8rem;
    padding-bottom: 5rem;
    text-align: center;
}
.summit-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border: 1px solid var(--summit-accent);
    border-radius: var(--radius-pill);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--summit-cyan-light);
    margin-bottom: 2rem;
    background: rgba(139,92,246,0.1);
}
.summit-hero h1 {
    color: #fff;
    font-size: clamp(3rem, 10vw, 6rem);
    background: linear-gradient(135deg, #fff 0%, var(--summit-accent-light) 50%, var(--summit-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}
.summit-hero-sub {
    font-size: clamp(1rem, 2vw, 1.3rem);
    font-weight: 300;
    color: rgba(255,255,255,0.88);
    max-width: 650px;
    margin: 0 auto 2.5rem;
    line-height: 1.75;
    letter-spacing: 0.01em;
}
.btn-summit {
    background: linear-gradient(135deg, var(--summit-accent), var(--summit-cyan));
    color: #fff;
    font-weight: 800;
    padding: 1rem 2.25rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    transition: transform 0.35s, box-shadow 0.35s;
    box-shadow: 0 6px 20px rgba(139,92,246,0.25);
}
.btn-summit:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px var(--summit-glow);
}
.btn-summit-outline {
    background: transparent;
    color: var(--summit-cyan-light);
    border: 1px solid var(--summit-accent);
    padding: 1rem 2.25rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.85rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    transition: all 0.35s;
}
.btn-summit-outline:hover {
    background: rgba(139,92,246,0.12);
    transform: translateY(-3px);
    border-color: var(--summit-accent-light);
}

/* ===== SUMMIT ABOUT ===== */
.summit-about {
    background: var(--summit-dark);
    color: var(--summit-text);
    padding-top: var(--section-pad);
    padding-bottom: var(--section-pad);
}
.summit-about h2 {
    color: #fff;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    letter-spacing: -0.02em;
}
.summit-about p {
    color: #d0d0e8;
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 1.25rem;
}
.summit-about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}
@media (min-width: 900px) {
    .summit-about-grid { grid-template-columns: 1fr 1fr; gap: 5rem; }
}
.summit-about-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.summit-mini-card {
    background: var(--summit-card);
    border: 1px solid var(--summit-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.19,1,0.22,1);
}
.summit-mini-card:hover { transform: translateY(-5px); box-shadow: 0 16px 32px rgba(0,0,0,0.3); }
.summit-mini-card.highlight { background: linear-gradient(135deg, rgba(139,92,246,0.15), rgba(34,211,238,0.06)); }
.summit-mini-card svg { width: 28px; height: 28px; color: var(--summit-cyan); margin-bottom: 0.75rem; }
.summit-mini-card strong { display: block; color: #fff; font-family: var(--font-display); font-size: 0.95rem; margin-bottom: 0.25rem; }
.summit-mini-card span { font-size: 0.75rem; color: var(--summit-text-dim); }

/* ===== SUMMIT RESULTS ===== */
.summit-results {
    background: var(--summit-deep);
    color: #fff;
    padding-top: var(--section-pad);
    padding-bottom: var(--section-pad);
    position: relative;
    overflow: hidden;
}
.summit-results::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--summit-accent), var(--summit-cyan), transparent);
}
.summit-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    max-width: 950px;
    margin: 0 auto;
}
@media (min-width: 768px) { .summit-stats-grid { grid-template-columns: repeat(4, 1fr); gap: 1.75rem; } }

.summit-stat-card {
    background: var(--summit-card);
    border: 1px solid var(--summit-border);
    border-radius: var(--radius-md);
    padding: 2.25rem 1.25rem;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.19,1,0.22,1);
    position: relative;
    overflow: hidden;
}
.summit-stat-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--summit-accent), var(--summit-cyan));
    opacity: 0;
    transition: opacity 0.4s;
}
.summit-stat-card:hover::before { opacity: 1; }
.summit-stat-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(139,92,246,0.2);
    border-color: rgba(139,92,246,0.35);
}
.summit-stat-card.gold {
    background: linear-gradient(145deg, rgba(139,92,246,0.18), rgba(34,211,238,0.08));
    border-color: rgba(139,92,246,0.35);
}
.summit-stat-card.gold::before { opacity: 0.5; }

/* ===== NUMBERS — HIGH VISIBILITY ===== */
.summit-stat-number {
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 6vw, 3.5rem);
    font-weight: 900;
    color: #fff;
    -webkit-text-fill-color: unset;
    background: none;
    line-height: 1;
    margin-bottom: 0.6rem;
    text-shadow: 0 0 30px rgba(139,92,246,0.4), 0 0 60px rgba(34,211,238,0.15);
    letter-spacing: -0.02em;
}
.summit-stat-card.gold .summit-stat-number {
    color: var(--summit-cyan-light);
    text-shadow: 0 0 25px rgba(34,211,238,0.5), 0 0 50px rgba(34,211,238,0.2);
}
.summit-stat-label {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: #d0d0e8;
    font-weight: 600;
}

.summit-audience {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    max-width: 650px;
    margin: 3.5rem auto 0;
    padding: 1.75rem 2.25rem;
    background: rgba(139,92,246,0.06);
    border: 1px solid var(--summit-border);
    border-radius: var(--radius-md);
    text-align: left;
}
.summit-audience svg { width: 32px; height: 32px; color: var(--summit-cyan); flex-shrink: 0; }
.summit-audience p { color: #d0d0e8; font-size: 0.95rem; line-height: 1.65; margin: 0; }
.summit-audience strong { color: var(--summit-cyan-light); }

/* ===== SUMMIT SPEAKERS ===== */
.summit-speakers {
    background: var(--summit-dark);
    color: var(--summit-text);
    padding-top: var(--section-pad);
    padding-bottom: var(--section-pad);
}
.summit-pillars-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.75rem;
}
@media (min-width: 768px) { .summit-pillars-grid { grid-template-columns: repeat(3, 1fr); } }

.summit-pillar-card {
    background: var(--summit-card);
    border: 1px solid var(--summit-border);
    border-radius: var(--radius-md);
    padding: 2.75rem 2.25rem;
    transition: all 0.5s cubic-bezier(0.19,1,0.22,1);
    position: relative;
    overflow: hidden;
}
.summit-pillar-card::after {
    content: "";
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--summit-accent), var(--summit-cyan));
    opacity: 0;
    transition: opacity 0.4s;
}
.summit-pillar-card:hover::after { opacity: 1; }
.summit-pillar-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 48px rgba(0,0,0,0.35);
    border-color: rgba(139,92,246,0.4);
}
.summit-pillar-icon {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, var(--summit-accent), var(--summit-cyan));
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.75rem;
    color: #fff;
    box-shadow: 0 8px 24px rgba(139,92,246,0.25);
}
.summit-pillar-card h3 {
    color: #fff;
    margin-bottom: 0.5rem;
    font-size: 1.15rem;
    letter-spacing: -0.01em;
}
.summit-speaker-name {
    color: var(--summit-cyan-light) !important;
    font-weight: 600 !important;
    font-size: 0.85rem !important;
    margin-bottom: 0.75rem !important;
}
.summit-pillar-card p {
    color: #c8c8e0;
    font-size: 0.92rem;
    line-height: 1.7;
}

/* ===== SUMMIT THEMES ===== */
.summit-themes {
    max-width: 850px;
    margin: 4rem auto 0;
    padding: 3rem;
    background: var(--summit-card);
    border: 1px solid var(--summit-border);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}
.summit-themes::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--summit-accent), var(--summit-cyan));
}
.summit-themes h3 { color: #fff; margin-bottom: 2rem; text-align: center; font-size: 1.35rem; letter-spacing: -0.01em; }
.summit-themes-list { display: flex; flex-direction: column; gap: 1.25rem; }
.summit-theme-item {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.25rem 1.5rem;
    background: rgba(255,255,255,0.02);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,0.04);
    transition: all 0.3s;
}
.summit-theme-item:hover {
    background: rgba(139,92,246,0.08);
    border-color: var(--summit-border);
    transform: translateX(6px);
}
.summit-theme-item svg { width: 24px; height: 24px; color: var(--summit-cyan); flex-shrink: 0; margin-top: 2px; }
.summit-theme-item strong { display: block; color: #fff; font-size: 0.92rem; margin-bottom: 0.25rem; }
.summit-theme-item span { font-size: 0.84rem; color: #c8c8e0; line-height: 1.5; }

/* ===== SUMMIT IMMERSION ===== */
.summit-immersion {
    background: linear-gradient(135deg, var(--summit-accent), var(--summit-cyan));
    padding: 4.5rem 0;
    position: relative;
    overflow: hidden;
}
.summit-immersion::before {
    content: "";
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 50px,
        rgba(255,255,255,0.03) 50px,
        rgba(255,255,255,0.03) 51px
    );
    pointer-events: none;
}
.summit-immersion-text {
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: #fff;
    font-weight: 700;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.45;
    letter-spacing: -0.01em;
    position: relative;
    z-index: 1;
}

/* ===== SUMMIT FUTURE ===== */
.summit-future {
    background: var(--summit-deep);
    color: #fff;
    padding-top: var(--section-pad);
    padding-bottom: var(--section-pad);
    position: relative;
    overflow: hidden;
}
.summit-future::before {
    content: "";
    position: absolute;
    top: 50%; left: 50%;
    width: 600px; height: 600px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(139,92,246,0.1) 0%, transparent 70%);
    pointer-events: none;
}
.summit-future-content {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}
.summit-future h2 {
    color: #fff;
    margin-bottom: 2rem;
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    letter-spacing: -0.02em;
}
.summit-future p {
    color: #d0d0e8;
    font-size: 1.08rem;
    line-height: 1.8;
    margin-bottom: 1.25rem;
}
.summit-future-quote {
    font-family: var(--font-display);
    font-size: clamp(1.3rem, 3vw, 2rem) !important;
    font-weight: 800 !important;
    font-style: italic;
    background: linear-gradient(135deg, var(--summit-accent-light), var(--summit-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem !important;
    line-height: 1.35 !important;
}

/* ===== SUMMIT GALLERY ===== */
.summit-gallery {
    background: var(--summit-dark);
    color: #fff;
    padding-top: var(--section-pad);
    padding-bottom: var(--section-pad);
}
.summit-photo-showcase {
    margin-top: 3rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--summit-border);
    box-shadow:
        0 24px 64px rgba(139,92,246,0.12),
        0 0 0 1px rgba(139,92,246,0.05);
    transition: transform 0.5s cubic-bezier(0.19,1,0.22,1), box-shadow 0.5s;
    position: relative;
}
.summit-photo-showcase::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    box-shadow: inset 0 0 80px rgba(6,5,14,0.3);
    pointer-events: none;
}
.summit-photo-showcase:hover {
    transform: translateY(-6px) scale(1.005);
    box-shadow:
        0 36px 80px rgba(139,92,246,0.2),
        0 0 0 1px rgba(139,92,246,0.1);
}
.summit-photo-showcase img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s cubic-bezier(0.19,1,0.22,1);
}
.summit-photo-showcase:hover img {
    transform: scale(1.02);
}

/* ===== SUMMIT SPONSORS ===== */
.summit-sponsors {
    background: var(--summit-deep);
    color: #fff;
    padding-top: var(--section-pad);
    padding-bottom: var(--section-pad);
    position: relative;
}
.summit-sponsors::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--summit-accent), var(--summit-cyan), transparent);
}
.summit-sponsors-showcase {
    margin-top: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--summit-border);
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
    transition: transform 0.5s cubic-bezier(0.19,1,0.22,1), box-shadow 0.5s;
    position: relative;
}
.summit-sponsors-showcase::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    box-shadow: inset 0 0 60px rgba(6,5,14,0.25);
    pointer-events: none;
}
.summit-sponsors-showcase:hover {
    transform: translateY(-4px);
    box-shadow: 0 28px 60px rgba(0,0,0,0.4);
}
.summit-sponsors-showcase img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s cubic-bezier(0.19,1,0.22,1);
}
.summit-sponsors-showcase:hover img {
    transform: scale(1.015);
}

/* ===== MOBILE RESPONSIVENESS ===== */
@media (max-width: 480px) {
    .summit-hero .container { padding-top: 6rem; padding-bottom: 3rem; }
    .summit-hero-sub { font-size: 0.95rem !important; }
    .summit-stat-card { padding: 1.5rem 0.75rem; }
    .summit-stat-number { font-size: clamp(1.75rem, 9vw, 2.75rem); }
    .summit-stat-label { font-size: 0.65rem; letter-spacing: 0.08em; }
    .summit-audience { flex-direction: column; text-align: center; padding: 1.25rem; }
    .summit-themes { padding: 1.5rem; }
    .summit-themes h3 { font-size: 1.1rem; }
    .summit-theme-item { padding: 0.75rem; gap: 0.75rem; }
    .summit-theme-item strong { font-size: 0.85rem; }
    .summit-theme-item span { font-size: 0.78rem; }
    .summit-pillar-card { padding: 1.75rem; }
    .summit-immersion-text { font-size: clamp(1rem, 4vw, 1.5rem) !important; }
    .btn-summit, .btn-summit-outline { padding: 0.85rem 1.5rem; font-size: 0.78rem; }
    .summit-future h2 { font-size: clamp(1.5rem, 6vw, 2.5rem); }
    .summit-future p { font-size: 0.95rem; }
}

@media (max-width: 768px) {
    .summit-stats-grid { gap: 0.85rem; }
    .summit-pillar-card h3 { font-size: 1.1rem; }
    .summit-pillar-card p { font-size: 0.85rem; }
    .summit-sponsors-showcase { margin-top: 2rem; }
}