/* Auth — Login & Register */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/inter-400.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/inter-600.woff2') format('woff2');
}
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/inter-700.woff2') format('woff2');
}
@font-face {
    font-family: 'Fraunces';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../fonts/fraunces-500.woff2') format('woff2');
}

:root {
    --brand: #1a68a5;
    --brand-dark: #155480;
    --brand-light: #2678b3;
    --brand-soft: #eef5fb;
    --ink: #0f172a;
    --ink-2: #334155;
    --muted: #64748b;
    --line: #e2e8f0;
    --canvas: #eef2f6;
    --white: #ffffff;
    --night: #000000;
    --radius: 14px;
    --radius-lg: 22px;
    --font: 'Inter', system-ui, sans-serif;
    --display: 'Fraunces', Georgia, serif;
    --shadow: 0 28px 60px -20px rgba(15, 23, 42, 0.22);
    --shadow-card: 0 16px 48px -12px rgba(15, 23, 42, 0.12);
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { font-size: 18px; }

body {
    font-family: var(--font);
    color: var(--ink);
    background: var(--canvas);
    font-size: 1rem;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.auth-page {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
}

/* ─── Left panel ─── */
.auth-visual {
    display: none;
    width: 48%;
    max-width: 680px;
    flex-shrink: 0;
    position: relative;
    background: var(--night);
    overflow: hidden;
}

@media (min-width: 1024px) {
    .auth-visual { display: flex; flex-direction: column; }
}

.auth-visual-bg {
    position: absolute;
    inset: 0;
}

.auth-visual-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.45;
}

.auth-visual-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(0, 0, 0, 0.35) 0%, rgba(0, 0, 0, 0.92) 100%),
        linear-gradient(135deg, rgba(26, 104, 165, 0.35) 0%, transparent 50%);
}

.auth-visual-inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 40px 44px 44px;
}

.auth-logo {
    display: inline-flex;
    align-items: center;
    margin-bottom: auto;
}

.auth-logo .brand-logo-img {
    max-height: 48px;
}

.auth-visual-content {
    margin-top: 48px;
}

.auth-visual-content h2 {
    font-family: var(--display);
    font-size: clamp(2rem, 3vw, 2.75rem);
    font-weight: 500;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: #fff;
    margin-bottom: 18px;
}

.auth-visual-content > p {
    font-size: 17px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.72);
    max-width: 420px;
    margin-bottom: 32px;
}

.auth-perks {
    display: grid;
    gap: 14px;
}

.auth-perk {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
}

.auth-perk-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: grid;
    place-items: center;
    color: var(--brand-3, #5eead4);
}

.auth-perk strong {
    display: block;
    font-weight: 600;
    margin-bottom: 2px;
}

.auth-perk span {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.55);
}

.auth-visual-stats {
    display: flex;
    gap: 28px;
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-stat strong {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.03em;
}

.auth-stat span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    margin-top: 2px;
}

/* ─── Right panel ─── */
.auth-main {
    flex: 1;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px 24px;
    background: #f8fafc;
    overflow: hidden;
}

@media (min-width: 1024px) {
    .auth-main { padding: 56px 48px; }
}

.auth-main-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 15% 20%, rgba(26, 104, 165, 0.07) 0%, transparent 42%),
        radial-gradient(circle at 85% 75%, rgba(20, 184, 166, 0.06) 0%, transparent 40%),
        linear-gradient(180deg, #fafbfc 0%, #f1f5f9 100%);
}

.auth-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
}

.auth-blob-1 {
    width: 320px; height: 320px;
    top: -8%; right: -5%;
    background: rgba(26, 104, 165, 0.12);
}

.auth-blob-2 {
    width: 260px; height: 260px;
    bottom: 10%; left: -6%;
    background: rgba(148, 163, 184, 0.15);
}

.auth-blob-3 {
    width: 180px; height: 180px;
    top: 45%; left: 40%;
    background: rgba(20, 184, 166, 0.08);
}

.auth-deco {
    position: absolute;
    right: 32px;
    bottom: 32px;
    pointer-events: none;
    opacity: 0.55;
}

@media (max-width: 640px) {
    .auth-deco { display: none; }
}

.auth-deco-grid {
    display: grid;
    grid-template-columns: repeat(3, 36px);
    gap: 10px;
    transform: rotate(-8deg);
}

.auth-deco-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--white);
    border: 1px solid var(--line);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06);
    display: grid;
    place-items: center;
    animation: decoFloat 4s ease-in-out infinite;
    animation-delay: calc(var(--d) * 0.3s);
}

.auth-deco-icon svg {
    width: 18px;
    height: 18px;
}

@keyframes decoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.auth-form-wrap {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 460px;
}

.auth-mobile-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 28px;
    font-size: 17px;
    font-weight: 700;
    color: var(--ink);
}

@media (min-width: 1024px) {
    .auth-mobile-logo { display: none; }
}

/* Tabs */
.auth-tabs {
    display: flex;
    padding: 4px;
    background: #e8edf2;
    border-radius: 999px;
    margin-bottom: 24px;
}

.auth-tab {
    flex: 1;
    text-align: center;
    padding: 13px 20px;
    border-radius: 999px;
    font-size: 16px;
    font-weight: 600;
    color: var(--muted);
    transition: all 0.25s var(--ease);
}

.auth-tab:hover:not(.active) {
    color: var(--ink-2);
}

.auth-tab.active {
    background: var(--white);
    color: var(--ink);
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 4px 12px rgba(15, 23, 42, 0.06);
}

/* Form card */
.auth-card {
    background: var(--white);
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: 24px;
    padding: 36px 32px 32px;
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.8) inset,
        0 20px 50px -16px rgba(15, 23, 42, 0.12),
        0 8px 24px -8px rgba(15, 23, 42, 0.06);
}

@media (min-width: 480px) {
    .auth-card { padding: 40px 36px 36px; }
}

.auth-heading { margin-bottom: 30px; }

.auth-heading h1 {
    font-family: var(--display);
    font-size: clamp(2rem, 3.2vw, 2.5rem);
    font-weight: 500;
    letter-spacing: -0.035em;
    color: var(--ink);
    line-height: 1.1;
}

.auth-heading h1 em {
    font-style: normal;
    color: var(--brand);
}

.auth-heading p {
    margin-top: 10px;
    font-size: 17px;
    color: var(--muted);
}

.auth-form { display: grid; gap: 18px; }

.auth-field label {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--ink-2);
    margin-bottom: 7px;
}

.auth-input-group {
    position: relative;
}

.auth-input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    pointer-events: none;
    display: grid;
    place-items: center;
}

.auth-input {
    width: 100%;
    padding: 16px 18px 16px 48px;
    border-radius: 12px;
    border: 1.5px solid #e2e8f0;
    background: var(--white);
    font-family: var(--font);
    font-size: 16px;
    color: var(--ink);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.auth-input::placeholder {
    color: #94a3b8;
}

.auth-input.no-icon { padding-left: 14px; }

.auth-input:focus {
    outline: none;
    border-color: var(--brand);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(26, 104, 165, 0.1);
}

.auth-input.has-toggle { padding-right: 46px; }

.auth-input-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 6px;
    cursor: pointer;
    color: var(--muted);
    border-radius: 6px;
    transition: color 0.15s, background 0.15s;
}

.auth-input-toggle:hover {
    color: var(--ink);
    background: var(--canvas);
}

.auth-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.auth-check {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: var(--muted);
    cursor: pointer;
    user-select: none;
}

.auth-check input {
    width: 17px;
    height: 17px;
    accent-color: var(--brand);
    cursor: pointer;
}

.auth-link {
    font-size: 15px;
    font-weight: 600;
    color: var(--brand);
    transition: color 0.15s;
}

.auth-link:hover { color: var(--brand-dark); }

.auth-submit {
    width: 100%;
    padding: 17px 22px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(145deg, #10b981 0%, var(--brand) 100%);
    color: #fff;
    font-family: var(--font);
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 16px rgba(26, 104, 165, 0.35);
    transition: transform 0.12s, box-shadow 0.2s, filter 0.15s;
    margin-top: 6px;
}

.auth-submit:hover {
    filter: brightness(1.05);
}

.auth-submit:active { transform: scale(0.98); }

.auth-divider {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 24px 0;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--line);
}

.auth-social {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.auth-social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 12px;
    border-radius: 11px;
    border: 1.5px solid var(--line);
    background: #fafbfc;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 500;
    color: var(--ink-2);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.auth-social-btn:hover {
    background: var(--white);
    border-color: #cbd5e1;
}

.auth-social-btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.auth-footer {
    margin-top: 24px;
    text-align: center;
    font-size: 16px;
    color: var(--muted);
}

.auth-footer a {
    font-weight: 600;
    color: var(--brand);
}

.auth-footer a:hover { color: var(--brand-dark); }

.auth-error {
    font-size: 14px;
    color: #dc2626;
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.auth-status {
    padding: 12px 14px;
    border-radius: 11px;
    background: var(--brand-soft);
    border: 1px solid #99f6e4;
    font-size: 15px;
    color: #065f46;
    margin-bottom: 18px;
}

.auth-hint {
    font-size: 14px;
    color: var(--muted);
    margin-top: 6px;
}

.auth-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 500;
    color: var(--muted);
    margin-bottom: 20px;
    transition: color 0.15s;
}

.auth-back:hover { color: var(--brand); }

.auth-trust {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px 24px;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid #f1f5f9;
}

.auth-trust-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--muted);
}

.auth-trust-item svg {
    width: 16px;
    height: 16px;
    color: var(--brand);
}

@media (max-width: 1023px) {
    .auth-card {
        padding: 32px 24px 28px;
        border-radius: 20px;
    }
}