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

html { scroll-behavior: smooth; }

body {
    font-family: 'Roboto', sans-serif;
    color: #1A1A1A;
    background: #0D0D0D;
    -webkit-font-smoothing: antialiased;
}

/* === HEADER === */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(13,13,13,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: 16px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.header-logo img {
    height: 40px;
    width: auto;
}
.header-badge {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #FF8069;
    border: 1px solid #FF8069;
    padding: 6px 16px;
    border-radius: 20px;
}

/* === HERO === */
.hero {
    position: relative;
    padding: 110px 40px 50px;
    text-align: center;
    background: #0D0D0D;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 40%, rgba(164,7,41,0.12) 0%, transparent 70%);
}
.hero-inner {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}
.hero h1 {
    font-size: 48px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 16px;
    line-height: 1.1;
}
.hero h1 span {
    background: linear-gradient(135deg, #A40729, #FB2C4B, #FCBF2E);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: 18px;
    color: rgba(255,255,255,0.75);
    margin-bottom: 40px;
    font-weight: 300;
    line-height: 1.5;
}

/* === SESSION BLOCKS IN HERO === */
.sessions-hero {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 32px;
}
.session-block {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 16px;
    padding: 28px 36px;
    text-align: center;
    min-width: 240px;
}
.session-block .day {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 6px;
}
.session-block .date {
    font-size: 16px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 10px;
}
.session-block .time {
    font-size: 20px;
    font-weight: 600;
    color: #FF8069;
}

/* === VENUE LINE === */
.venue-line {
    font-size: 16px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}
.venue-line svg {
    color: #FF8069;
    flex-shrink: 0;
}
.venue-line a {
    color: #FF8069;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.venue-line a:hover {
    color: #FCBF2E;
}

/* === CTA === */
.cta-btn {
    display: inline-block;
    padding: 16px 44px;
    background: linear-gradient(135deg, #A40729, #FB2C4B);
    color: #fff;
    font-size: 17px;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 4px 24px rgba(164,7,41,0.35);
    transition: transform 0.2s, box-shadow 0.2s;
}
.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(164,7,41,0.45);
}

/* === REGISTRATION SECTION === */
.register-section {
    background: #FFF9F5;
    padding: 64px 40px 80px;
}
.register-inner {
    max-width: 700px;
    margin: 0 auto;
}
.register-section h2 {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
    color: #1A1A1A;
}
.register-section .subtitle {
    font-size: 16px;
    text-align: center;
    color: #555;
    margin-bottom: 40px;
}

/* === SESSION CARDS === */
.cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 40px;
}
.card {
    background: #fff;
    border-radius: 16px;
    padding: 28px 24px;
    border: 2px solid transparent;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.card:hover {
    border-color: #FB2C4B;
    box-shadow: 0 4px 24px rgba(251,44,75,0.12);
    transform: translateY(-2px);
}
.card.selected {
    border-color: #FB2C4B;
    box-shadow: 0 4px 24px rgba(251,44,75,0.15);
}
.card.full {
    opacity: 0.6;
    cursor: not-allowed;
}
.card.full:hover {
    border-color: transparent;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transform: none;
}
.card .card-day {
    font-size: 20px;
    font-weight: 700;
    color: #1A1A1A;
    margin-bottom: 4px;
}
.card .card-date {
    font-size: 14px;
    color: #FB2C4B;
    font-weight: 500;
    margin-bottom: 8px;
}
.card .card-time {
    font-size: 17px;
    color: #333;
    font-weight: 500;
    margin-bottom: 16px;
}
.card .card-spots {
    font-size: 14px;
    color: #555;
    margin-bottom: 12px;
}
.card .card-spots.low {
    color: #E65100;
    font-weight: 700;
}
.card .card-spots.full {
    color: #A40729;
    font-weight: 700;
}
.progress-bar {
    height: 6px;
    background: #eee;
    border-radius: 3px;
    margin-bottom: 20px;
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #A40729, #FB2C4B, #FCBF2E);
    border-radius: 3px;
    transition: width 0.5s ease;
}
.progress-fill.high {
    background: linear-gradient(90deg, #E65100, #FF8069);
}
.progress-fill.full-bar {
    background: #A40729;
}
.card-btn {
    display: block;
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #A40729, #FB2C4B);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}
.card-btn:hover { opacity: 0.9; }
.card-btn:disabled {
    background: #9FA0A2;
    cursor: not-allowed;
}

/* === FORM === */
.form-box {
    max-width: 460px;
    margin: 0 auto;
    background: #fff;
    border-radius: 16px;
    padding: 36px 32px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    animation: slideUp 0.4s ease;
}
@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.form-box h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
    color: #1A1A1A;
}
.form-box .form-label {
    font-size: 14px;
    color: #555;
    margin-bottom: 24px;
}
.field {
    margin-bottom: 18px;
}
.field label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: #333;
    margin-bottom: 6px;
}
.field input {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    font-family: 'Roboto', sans-serif;
    border: 1.5px solid #ddd;
    border-radius: 8px;
    background: #fafafa;
    transition: border-color 0.2s, background 0.2s;
    color: #1A1A1A;
}
.field input:focus {
    outline: none;
    border-color: #FB2C4B;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(251,44,75,0.08);
}
.field input::placeholder {
    color: #bbb;
}
.submit-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #A40729, #FB2C4B);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 8px;
    transition: opacity 0.2s;
}
.submit-btn:hover { opacity: 0.9; }
.submit-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.waitlist-btn {
    background: #333;
}
.btn-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.spinner {
    width: 18px;
    height: 18px;
    animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* === WAITLIST NOTICE === */
.waitlist-notice {
    text-align: center;
    padding: 24px;
    margin-bottom: 24px;
    background: rgba(164,7,41,0.05);
    border-radius: 12px;
    border: 1px solid rgba(164,7,41,0.15);
}
.waitlist-notice svg {
    color: #A40729;
    margin-bottom: 10px;
}
.waitlist-notice h3 {
    font-size: 20px;
    font-weight: 700;
    color: #A40729;
    margin-bottom: 8px;
}
.waitlist-notice p {
    font-size: 14px;
    color: #555;
    line-height: 1.6;
}

/* === SUCCESS === */
.success-box {
    max-width: 460px;
    margin: 0 auto;
    text-align: center;
    background: #fff;
    border-radius: 16px;
    padding: 48px 32px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    border: 1px solid rgba(76,175,80,0.2);
    animation: slideUp 0.4s ease;
}
.success-box svg {
    color: #4CAF50;
    margin-bottom: 12px;
}
.success-box h3 {
    font-size: 24px;
    font-weight: 700;
    color: #1A1A1A;
    margin-bottom: 10px;
}
.success-box p {
    font-size: 15px;
    color: #555;
    line-height: 1.6;
}

/* === FOOTER === */
.footer {
    background: #0D0D0D;
    padding: 36px 40px;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.05);
}
.footer .brand {
    font-size: 14px;
    color: #9FA0A2;
    margin-bottom: 8px;
}
.footer .brand strong {
    color: #fff;
}
.footer .copyright {
    font-size: 13px;
    color: #9FA0A2;
}

/* === RESPONSIVE === */
@media (max-width: 700px) {
    .hero { padding: 100px 20px 40px; }
    .hero h1 { font-size: 32px; }
    .hero-sub { font-size: 16px; }
    .sessions-hero { flex-direction: column; align-items: center; gap: 12px; }
    .session-block { min-width: unset; width: 100%; max-width: 300px; padding: 20px 24px; }
    .cards-grid { grid-template-columns: 1fr; }
    .header { padding: 14px 20px; }
    .header-logo img { height: 32px; }
    .register-section { padding: 48px 20px 60px; }
    .form-box { padding: 28px 20px; }
}