/* ============================================================
   DATA RETREAT 2026 — REGISTRATION PAGE STYLES
   File: assets/css/register.css
   Requires: main.css loaded first

   FIXES:
   - Navbar now identical to index page (transparent → scrolled navy)
   - Mobile-first layout: single column on mobile, split on desktop
   - Removed sticky sidebar that broke mobile scroll
   - Fixed navbar being cut off on mobile scroll
   ============================================================ */

/* ─── PAGE WRAPPER ───────────────────────────────────────────── */
/*
   The page sits BELOW the fixed navbar using padding-top.
   On mobile it's a single column stack (sidebar on top, form below).
   On desktop it's a two-column split.
   The navbar in main.css handles its own fixed positioning and
   transparent→navy transition on scroll — we don't override it here.
*/
.reg-page {
    min-height: 100vh;
    padding-top: var(--navbar-h);   /* clear the fixed navbar */
    display: flex;
    flex-direction: column;         /* mobile: stack vertically */
}

/* ─── LEFT SIDEBAR ───────────────────────────────────────────── */
.reg-sidebar {
    background: var(--color-primary);
    position: relative;
    overflow: hidden;
    padding: var(--space-10) var(--space-5);
    /* On mobile, sidebar is at the TOP and is NOT sticky */
}

.reg-sidebar-inner {
    position: relative;
    z-index: 2;
    max-width: 540px;
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

/* Decorative orbs */
.reg-sidebar-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
}

.reg-sidebar-orb {
    position: absolute;
    border-radius: 50%;
}

.reg-sidebar-orb--1 {
    width: 320px;
    height: 320px;
    top: -80px;
    right: -80px;
    background: radial-gradient(circle, rgba(219,180,94,0.1) 0%, transparent 70%);
}

.reg-sidebar-orb--2 {
    width: 200px;
    height: 200px;
    bottom: -60px;
    left: -40px;
    background: radial-gradient(circle, rgba(0,0,107,0.7) 0%, transparent 70%);
}

/* Back link */
.reg-back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: rgba(255,255,255,0.55);
    font-size: var(--fs-sm);
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
    width: fit-content;
}

.reg-back-link:hover {
    color: var(--color-accent);
}

.reg-back-arrow {
    transition: transform 0.25s ease;
    display: inline-block;
}

.reg-back-link:hover .reg-back-arrow {
    transform: translateX(-4px);
}

/* "Registration Open" badge */
.reg-event-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(219,180,94,0.12);
    border: 1px solid rgba(219,180,94,0.3);
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    width: fit-content;
}

.reg-event-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
    flex-shrink: 0;
}

/* Sidebar heading */
.reg-sidebar-title {
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    color: var(--color-white);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: 0;
}

.reg-sidebar-accent {
    color: var(--color-accent);
    font-style: italic;
}

.reg-sidebar-desc {
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
    margin: 0;
}

/* Event details list */
.reg-event-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-5);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-md);
    margin: 0;
}

.reg-detail-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.reg-detail-icon {
    font-size: 15px;
    flex-shrink: 0;
    margin-top: 2px;
}

.reg-detail-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.35);
    margin-bottom: 1px;
}

.reg-detail-value {
    display: block;
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.85);
    font-weight: 500;
}

/* Pricing preview */
.reg-pricing-preview {
    background: rgba(219,180,94,0.07);
    border: 1px solid rgba(219,180,94,0.2);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
}

.reg-price-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) 0;
}

.reg-price-type {
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.65);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.reg-price-amount {
    font-family: var(--font-heading);
    font-size: var(--fs-md);
    color: var(--color-accent);
    font-weight: 700;
}

.reg-price-divider {
    height: 1px;
    background: rgba(255,255,255,0.07);
    margin: var(--space-1) 0;
}

/* Trust badges */
.reg-trust {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    padding-top: var(--space-2);
}

.reg-trust-item {
    font-size: 11px;
    color: rgba(255,255,255,0.45);
    font-family: var(--font-mono);
    letter-spacing: 0.04em;
}

/* ─── RIGHT PANEL: FORM ──────────────────────────────────────── */
.reg-main {
    background: var(--color-bg);
    padding: var(--space-8) var(--space-5);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    flex: 1;
}

.reg-form-wrap {
    width: 100%;
    max-width: 560px;
    padding-bottom: var(--space-12);
}

/* ─── STEP INDICATOR ─────────────────────────────────────────── */
.reg-steps {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-8);
}

.reg-step {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    opacity: 0.35;
    transition: var(--transition);
    flex-shrink: 0;
}

.reg-step--active,
.reg-step--done {
    opacity: 1;
}

.reg-step-num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-border);
    color: var(--color-text-muted);
    font-size: var(--fs-xs);
    font-weight: 700;
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.reg-step--active .reg-step-num {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 0 0 4px rgba(0,0,74,0.12);
}

.reg-step--done .reg-step-num {
    background: var(--color-success);
    color: var(--color-white);
}

.reg-step-label {
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.reg-step--active .reg-step-label {
    color: var(--color-primary);
}

.reg-step-connector {
    flex: 1;
    height: 1px;
    background: var(--color-border);
    margin: 0 var(--space-2);
    min-width: 16px;
}

/* ─── FORM HEADING ───────────────────────────────────────────── */
.reg-form-title {
    font-size: var(--fs-2xl);
    color: var(--color-primary);
    margin-bottom: var(--space-2);
}

.reg-form-subtitle {
    font-size: var(--fs-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-6);
}

/* ─── FORM FIELDS ────────────────────────────────────────────── */
.reg-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-label {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 0.01em;
}

.form-required {
    color: var(--color-error);
    margin-left: 2px;
}

.form-input-wrap {
    position: relative;
}

.form-input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    pointer-events: none;
    transition: color 0.2s;
    z-index: 1;
}

.form-input {
    width: 100%;
    /* Taller touch target on mobile */
    padding: 0.9rem 1rem 0.9rem 2.75rem;
    font-family: var(--font-body);
    font-size: 16px;    /* 16px prevents iOS zoom on focus */
    color: var(--color-text);
    background: var(--color-white);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

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

.form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 0, 74, 0.1);
}

.form-input-wrap:focus-within .form-input-icon {
    color: var(--color-primary);
}

.form-group.valid .form-input {
    border-color: var(--color-success);
}

.form-group.error .form-input {
    border-color: var(--color-error);
    background: #fff8f8;
}

.form-group.error .form-input:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-hint {
    font-size: var(--fs-xs);
    color: var(--color-text-light);
    font-family: var(--font-mono);
}

.form-error {
    font-size: var(--fs-xs);
    color: var(--color-error);
    font-weight: 500;
    min-height: 1em;
    display: flex;
    align-items: center;
    gap: 5px;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity 0.2s, transform 0.2s;
}

.form-error:not(:empty) {
    opacity: 1;
    transform: translateY(0);
}

.form-error::before {
    content: '!';
    width: 14px;
    height: 14px;
    min-width: 14px;
    background: var(--color-error);
    color: #fff;
    border-radius: 50%;
    font-size: 9px;
    font-weight: 700;
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ─── ATTENDANCE CARDS ───────────────────────────────────────── */
.attendance-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.attendance-radio {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.attendance-card {
    display: block;
    cursor: pointer;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-white);
    transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    /* Larger tap target on mobile */
    -webkit-tap-highlight-color: transparent;
}

.attendance-card:hover {
    border-color: rgba(0, 0, 74, 0.3);
    box-shadow: var(--shadow-sm);
}

.attendance-card.selected {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0,0,74,0.1), var(--shadow-md);
    background: rgba(0,0,74,0.02);
}

.attendance-card-inner {
    padding: var(--space-4) var(--space-4);
}

.attendance-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    flex-wrap: wrap;
}

.attendance-icon {
    font-size: 18px;
    flex-shrink: 0;
}

.attendance-check {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
    flex-shrink: 0;
    transition: var(--transition);
    color: transparent;
}

.attendance-card.selected .attendance-check {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.attendance-recommended {
    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background: var(--color-accent);
    color: var(--color-primary);
    padding: 2px 6px;
    border-radius: var(--radius-full);
    white-space: nowrap;
    margin-left: auto;
    flex-shrink: 0;
}

.attendance-card-name {
    font-weight: 700;
    font-size: var(--fs-base);
    color: var(--color-primary);
    margin-bottom: var(--space-1);
}

.attendance-card-desc {
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    line-height: 1.5;
    margin-bottom: var(--space-3);
}

.attendance-card-price {
    font-family: var(--font-heading);
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--color-accent-dark);
}

.attendance-card.selected .attendance-card-price {
    color: var(--color-primary);
}

/* ─── LIVE PRICE DISPLAY ─────────────────────────────────────── */
.reg-price-display {
    background: var(--color-primary);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.reg-price-display-label {
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.6);
    font-family: var(--font-mono);
    font-weight: 500;
}

.reg-price-display-amount {
    font-family: var(--font-heading);
    font-size: var(--fs-xl);
    font-weight: 700;
    color: var(--color-accent);
    transition: opacity 0.2s, transform 0.2s;
}

.reg-price-display-amount.updating {
    opacity: 0;
    transform: scale(0.9);
}

/* ─── GLOBAL ERROR BANNER ────────────────────────────────────── */
.form-global-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-left: 4px solid var(--color-error);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    font-size: var(--fs-sm);
    color: #991b1b;
    line-height: 1.6;
}

/* ─── SUBMIT BUTTON ──────────────────────────────────────────── */
.reg-submit-btn {
    width: 100%;
    justify-content: center;
    /* Full height touch target on mobile */
    padding: 1rem 2rem;
    font-size: var(--fs-base);
    font-weight: 700;
    margin-top: var(--space-2);
    min-height: 52px;
}

.reg-submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn-spinner {
    display: inline-flex;
    align-items: center;
}

.btn-spinner .spinner-svg {
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* ─── FORM NOTE ──────────────────────────────────────────────── */
.reg-form-note {
    font-size: var(--fs-xs);
    color: var(--color-text-light);
    text-align: center;
    line-height: 1.6;
}

.reg-form-note a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* ─── DESKTOP: TWO-COLUMN SPLIT ──────────────────────────────── */
@media (min-width: 900px) {
    .reg-page {
        flex-direction: row;
        padding-top: 0;             /* desktop handles its own spacing */
        min-height: 100vh;
    }

    /* Left sidebar: fixed width, full height, sticky */
    .reg-sidebar {
        width: 400px;
        flex-shrink: 0;
        min-height: 100vh;
        padding-top: calc(var(--navbar-h) + var(--space-10));
        padding-bottom: var(--space-12);
        padding-inline: var(--space-8);
        /* Sticky: stays in view while form scrolls */
        position: sticky;
        top: 0;
        height: 100vh;
        overflow-y: auto;
        scrollbar-width: thin;
        scrollbar-color: rgba(219,180,94,0.3) transparent;
    }

    .reg-sidebar::-webkit-scrollbar { width: 4px; }
    .reg-sidebar::-webkit-scrollbar-thumb { background: rgba(219,180,94,0.3); border-radius: 2px; }

    .reg-sidebar-inner {
        max-width: 100%;
    }

    /* Right form area */
    .reg-main {
        flex: 1;
        padding: calc(var(--navbar-h) + var(--space-10)) var(--space-10) var(--space-12);
        min-height: 100vh;
    }
}

@media (min-width: 1100px) {
    .reg-sidebar {
        width: 440px;
        padding-inline: var(--space-10);
    }

    .reg-main {
        padding-inline: var(--space-16);
    }
}

/* ─── TABLET ─────────────────────────────────────────────────── */
@media (max-width: 899px) {
    /* Sidebar is a header band on mobile */
    .reg-sidebar {
        padding: calc(var(--navbar-h) + var(--space-6)) var(--space-5) var(--space-8);
    }

    .reg-sidebar-inner {
        gap: var(--space-4);
    }

    /* Hide the event details list on small screens to keep it compact */
    .reg-event-details,
    .reg-pricing-preview {
        display: none;
    }

    .reg-trust {
        justify-content: center;
    }
}

/* ─── MOBILE ─────────────────────────────────────────────────── */
@media (max-width: 480px) {
    .attendance-cards {
        grid-template-columns: 1fr;
    }

    .reg-steps {
        gap: 0;
    }

    .reg-step-label {
        display: none;   /* too cramped on small phones */
    }

    .reg-price-display {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-1);
    }

    .reg-form-wrap {
        padding-bottom: var(--space-16);
    }
}