:root {
    --bg-void: #050508;
    --bg-card: rgba(8, 8, 16, 0.82);
    --bg-surface: rgba(255, 255, 255, 0.03);
    --bg-surface-hover: rgba(255, 255, 255, 0.06);

    --neon-cyan: #00f0ff;
    --neon-magenta: #ff00aa;
    --neon-purple: #a855f7;
    --neon-lime: #b8ff00;

    --text-primary: #f0f0ff;
    --text-secondary: #9898b8;
    --text-muted: #5c5c78;

    --border: rgba(255, 255, 255, 0.07);
    --border-glow: rgba(0, 240, 255, 0.35);

    --error: #ff4d6d;
    --error-bg: rgba(255, 77, 109, 0.1);

    --radius: 20px;
    --radius-sm: 12px;
    --radius-xs: 8px;

    --font-display: "Syne", system-ui, sans-serif;
    --font-title: "Bebas Neue", "Syne", system-ui, sans-serif;
    --font-body: "Outfit", system-ui, sans-serif;

    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 2.75rem;

    --max-width: 440px;

    --glow-cyan: 0 0 40px rgba(0, 240, 255, 0.25);
    --glow-magenta: 0 0 40px rgba(255, 0, 170, 0.2);
    --shadow-card: 0 32px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.04);
}

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

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100dvh;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-void);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* ── Background scene ── */

.scene {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background: var(--bg-void);
}

.scene-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.55;
    animation: drift 12s ease-in-out infinite alternate;
}

.scene-glow--cyan {
    width: 70vw;
    height: 70vw;
    max-width: 500px;
    max-height: 500px;
    top: -20%;
    left: -15%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.35) 0%, transparent 70%);
}

.scene-glow--magenta {
    width: 60vw;
    height: 60vw;
    max-width: 450px;
    max-height: 450px;
    bottom: -15%;
    right: -20%;
    background: radial-gradient(circle, rgba(255, 0, 170, 0.3) 0%, transparent 70%);
    animation-delay: -6s;
    animation-direction: alternate-reverse;
}

.scene-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 240, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.04) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: linear-gradient(180deg, transparent 0%, black 30%, black 70%, transparent 100%);
    -webkit-mask-image: linear-gradient(180deg, transparent 0%, black 30%, black 70%, transparent 100%);
}

.scene-noise {
    position: absolute;
    inset: 0;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    pointer-events: none;
}

@keyframes drift {
    from { transform: translate(0, 0) scale(1); }
    to   { transform: translate(5%, 8%) scale(1.08); }
}

/* ── Layout ── */

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md) var(--space-xl);
}

/* ── Card ── */

.invite-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: calc(var(--radius) + 4px);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent,
        var(--neon-cyan) 20%,
        var(--neon-magenta) 50%,
        var(--neon-purple) 80%,
        transparent
    );
    opacity: 0.8;
}

.card-glow::after {
    content: "";
    position: absolute;
    inset: 0;
    filter: blur(6px);
    background: inherit;
}

/* ── Header ── */

.invite-header {
    position: relative;
    padding: 0;
    text-align: center;
    overflow: hidden;
    background: url('/fondo_piramide.jpeg') center / cover no-repeat;
}

.invite-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(5, 5, 8, 0.3) 0%,
        rgba(5, 5, 8, 0.5) 45%,
        rgba(5, 5, 8, 0.92) 100%
    );
    pointer-events: none;
}

.invite-header > * {
    position: relative;
    z-index: 1;
}

.header-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: clamp(280px, 58vw, 380px);
    padding: 3.5rem var(--space-lg) 4rem;
}

.invite-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0 0 var(--space-md);
    padding: 0.55rem 1.15rem 0.55rem 0.85rem;
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.95);
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.5) 0%,
        rgba(10, 10, 18, 0.65) 100%
    );
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.badge-accent {
    flex-shrink: 0;
    width: 3px;
    height: 1.1em;
    background: linear-gradient(180deg, var(--neon-lime) 0%, var(--neon-cyan) 100%);
    border-radius: 2px;
    box-shadow: 0 0 14px rgba(184, 255, 0, 0.65);
}

.invite-title {
    margin: 0;
    font-family: var(--font-title);
    font-size: clamp(3.25rem, 15vw, 5rem);
    font-weight: 400;
    line-height: 0.92;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.title-line {
    display: block;
    color: #ffffff;
    -webkit-text-fill-color: #ffffff;
    text-shadow:
        0 0 24px rgba(184, 255, 0, 0.55),
        0 0 48px rgba(0, 240, 255, 0.35),
        0 2px 12px rgba(0, 0, 0, 0.85);
}

.invite-subtitle {
    margin: var(--space-sm) 0 var(--space-md);
    font-size: 0.9375rem;
    font-weight: 300;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

.header-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: var(--space-lg);
}

.meta-tag {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.meta-divider {
    color: var(--neon-purple);
    opacity: 0.6;
}

.waveform {
    position: relative;
    height: 40px;
    margin: 0 calc(var(--space-lg) * -1);
    opacity: 0.5;
}

.waveform svg {
    width: 100%;
    height: 100%;
}

.wave {
    fill: none;
    stroke-width: 1.5;
}

.wave-1 {
    stroke: var(--neon-cyan);
    animation: wave-shift 4s ease-in-out infinite;
}

.wave-2 {
    stroke: var(--neon-magenta);
    opacity: 0.6;
    animation: wave-shift 4s ease-in-out infinite reverse;
}

@keyframes wave-shift {
    0%, 100% { d: path("M0,20 Q50,5 100,20 T200,20 T300,20 T400,20 V40 H0 Z"); }
    50%      { d: path("M0,20 Q50,35 100,20 T200,20 T300,20 T400,20 V40 H0 Z"); }
}

/* ── Event details ── */

.event-details {
    display: grid;
    gap: var(--space-sm);
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.detail-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color 0.2s, background 0.2s;
}

.detail-card--wide {
    grid-column: 1 / -1;
}

.detail-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    font-size: 1rem;
    color: var(--neon-cyan);
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.15);
    border-radius: var(--radius-xs);
    text-shadow: 0 0 12px rgba(0, 240, 255, 0.5);
}

.detail-body {
    display: grid;
    gap: 0.1rem;
    min-width: 0;
}

.detail-label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.detail-value {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.35;
}

.detail-meta {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

/* ── Sections ── */

.section {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.section:last-of-type,
.section-form {
    border-bottom: none;
}

.section-head {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.section-head--compact {
    margin-bottom: var(--space-md);
    margin-top: var(--space-xl);
}

.section-num {
    flex-shrink: 0;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--neon-magenta);
    padding-top: 0.2rem;
    opacity: 0.9;
}

.section-title {
    margin: 0;
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.section-hint {
    margin: 0.25rem 0 0;
    font-size: 0.8125rem;
    font-weight: 300;
    color: var(--text-muted);
}

.lista-notice {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-secondary);
    background: rgba(184, 255, 0, 0.06);
    border: 1px solid rgba(184, 255, 0, 0.22);
    border-radius: var(--radius-xs);
}

.lista-notice-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--neon-lime);
    background: rgba(184, 255, 0, 0.1);
    border: 1px solid rgba(184, 255, 0, 0.3);
    border-radius: 50%;
}

.lista-notice p {
    margin: 0;
}

.lista-notice strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ── Tickets ── */

.ticket-grid,
.payment-grid {
    display: grid;
    gap: var(--space-sm);
}

.ticket-option,
.payment-option {
    display: block;
    cursor: pointer;
}

.ticket-option input,
.payment-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.ticket-card {
    display: grid;
    gap: 0.35rem;
    padding: var(--space-md);
    background: var(--bg-surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color 0.25s, background 0.25s, box-shadow 0.25s, transform 0.15s;
}

.payment-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
}

.ticket-option input:focus-visible + .ticket-card,
.payment-option input:focus-visible + .payment-card {
    outline: 2px solid var(--neon-cyan);
    outline-offset: 2px;
}

.ticket-option input:checked + .ticket-card {
    border-color: rgba(0, 240, 255, 0.5);
    background: rgba(0, 240, 255, 0.05);
    box-shadow: var(--glow-cyan), inset 0 0 30px rgba(0, 240, 255, 0.03);
}

.payment-option input:checked + .payment-card {
    border-color: rgba(255, 0, 170, 0.45);
    background: rgba(255, 0, 170, 0.05);
    box-shadow: var(--glow-magenta), inset 0 0 30px rgba(255, 0, 170, 0.03);
}

.ticket-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ticket-radio {
    width: 18px;
    height: 18px;
    border: 2px solid var(--text-muted);
    border-radius: 50%;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.ticket-option input:checked + .ticket-card .ticket-radio {
    border-color: var(--neon-cyan);
    box-shadow: inset 0 0 0 3px var(--bg-void), inset 0 0 0 5px var(--neon-cyan);
}

.ticket-name,
.payment-name {
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.02em;
}

.ticket-price {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-lime));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.ticket-desc,
.payment-desc {
    font-size: 0.8125rem;
    font-weight: 300;
    color: var(--text-secondary);
    line-height: 1.4;
}

.payment-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 1.125rem;
    color: var(--neon-magenta);
    background: rgba(255, 0, 170, 0.08);
    border: 1px solid rgba(255, 0, 170, 0.15);
    border-radius: var(--radius-xs);
}

.payment-info {
    display: grid;
    gap: 0.1rem;
}

/* ── Form fields ── */

.field-grid {
    display: grid;
    gap: var(--space-md);
}

.field {
    display: grid;
    gap: var(--space-xs);
}

.field-full {
    grid-column: 1 / -1;
}

.field label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.field input {
    width: 100%;
    padding: 0.8rem 1rem;
    font: inherit;
    font-weight: 400;
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.35);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-xs);
    transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.field input::placeholder {
    color: var(--text-muted);
    font-weight: 300;
}

.field input:focus {
    outline: none;
    border-color: rgba(0, 240, 255, 0.45);
    background: rgba(0, 240, 255, 0.03);
    box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.08), 0 0 20px rgba(0, 240, 255, 0.06);
}

.field input.invalid {
    border-color: var(--error);
    box-shadow: 0 0 0 3px var(--error-bg);
}

/* ── Errors ── */

.form-errors {
    margin-top: var(--space-md);
    padding: var(--space-md);
    font-size: 0.875rem;
    color: var(--error);
    background: var(--error-bg);
    border: 1px solid rgba(255, 77, 109, 0.25);
    border-radius: var(--radius-xs);
}

.form-errors ul {
    margin: 0;
    padding-left: 1.1rem;
}

/* ── Buttons ── */

.btn-primary,
.btn-secondary,
.btn-ghost {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    width: 100%;
    min-height: 52px;
    padding: 0.9rem 1.5rem;
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: transform 0.15s, opacity 0.15s;
    overflow: hidden;
}

.btn-primary {
    margin-top: var(--space-lg);
    color: var(--bg-void);
    background: linear-gradient(135deg, var(--neon-cyan) 0%, #00c8d4 40%, var(--neon-magenta) 100%);
    background-size: 200% 200%;
    animation: btn-gradient 4s ease infinite;
    box-shadow: 0 8px 32px rgba(0, 240, 255, 0.25), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

@keyframes btn-gradient {
    0%, 100% { background-position: 0% 50%; }
    50%      { background-position: 100% 50%; }
}

.btn-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.25) 50%, transparent 60%);
    transform: translateX(-100%);
    animation: btn-shine 3s ease-in-out infinite;
}

@keyframes btn-shine {
    0%, 70%, 100% { transform: translateX(-100%); }
    85%           { transform: translateX(100%); }
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 240, 255, 0.35), 0 0 60px rgba(255, 0, 170, 0.15);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.btn-secondary {
    color: var(--text-primary);
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.25);
}

.btn-secondary:hover {
    background: rgba(0, 240, 255, 0.14);
}

.btn-ghost {
    color: var(--text-secondary);
    background: transparent;
    font-family: var(--font-body);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: none;
}

.btn-loader {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(5, 5, 8, 0.25);
    border-top-color: var(--bg-void);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ── Footer ── */

.site-footer {
    margin-top: var(--space-xl);
    text-align: center;
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: var(--max-width);
    min-height: 48px;
    margin-bottom: var(--space-md);
    padding: 0.85rem 1.25rem;
    font-family: var(--font-display);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-decoration: none;
    color: #ffffff;
    background: rgba(37, 211, 102, 0.12);
    border: 1px solid rgba(37, 211, 102, 0.4);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 24px rgba(37, 211, 102, 0.12);
    transition: background 0.2s, border-color 0.2s, transform 0.15s;
}

.btn-whatsapp:hover {
    background: rgba(37, 211, 102, 0.2);
    border-color: rgba(37, 211, 102, 0.6);
    transform: translateY(-1px);
}

.footer-domain {
    margin: 0;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-muted);
}

/* ── Modal ── */

.modal {
    width: min(calc(100% - 2rem), 400px);
    max-height: calc(100dvh - 2rem);
    padding: 0;
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1px solid rgba(0, 240, 255, 0.15);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card), var(--glow-cyan);
    overflow: hidden;
}

.modal::backdrop {
    background: rgba(5, 5, 8, 0.75);
    backdrop-filter: blur(8px);
}

.modal-glow {
    height: 2px;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
}

.modal-content {
    position: relative;
    padding: var(--space-xl) var(--space-lg) var(--space-lg);
}

.modal-close {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    width: 36px;
    height: 36px;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--text-muted);
    background: transparent;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--neon-cyan);
}

.modal-badge {
    display: inline-block;
    margin: 0 0 var(--space-sm);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--neon-magenta);
}

.modal-title {
    margin: 0 0 var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.modal-intro {
    margin: 0 0 var(--space-lg);
    font-size: 0.875rem;
    font-weight: 300;
    color: var(--text-secondary);
    line-height: 1.5;
}

.transfer-list {
    display: grid;
    gap: var(--space-sm);
    margin: 0 0 var(--space-lg);
}

.transfer-list div {
    display: grid;
    gap: 0.1rem;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
}

.transfer-list dt {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.transfer-list dd {
    margin: 0;
    font-size: 0.9375rem;
    font-weight: 500;
    word-break: break-all;
}

.modal-actions {
    display: grid;
    gap: var(--space-sm);
}

/* ── Responsive ── */

@media (min-width: 480px) {
    .container {
        padding-top: var(--space-2xl);
    }

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

    .event-details {
        grid-template-columns: 1fr 1fr;
    }

    .detail-card--wide {
        grid-column: 1 / -1;
    }
}

@media (min-width: 768px) {
    :root {
        --max-width: 480px;
    }

    .container {
        padding-top: 3.5rem;
        padding-bottom: 3.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}