/* ============================================================
   SHAIK LUXURY — AUTHENTICATION PAGE
   ============================================================ */

/* Reuse root variables */
:root {
    --gold: #C9A84C;
    --gold-light: #E8C87A;
    --gold-dark: #967A35;
    --gold-gradient: linear-gradient(135deg, #C9A84C 0%, #E8C87A 50%, #C9A84C 100%);
    --black: #000000;
    --black-soft: #0A0A0A;
    --black-card: #111111;
    --black-border: rgba(201, 168, 76, 0.15);
    --white: #FFFFFF;
    --white-dim: rgba(255, 255, 255, 0.7);
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-display: 'Bebas Neue', Arial, sans-serif;
    --transition: 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    --radius: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

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

html {
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background: var(--black-soft);
    color: var(--white);
    min-height: 100vh;
    display: flex;
    overflow: hidden;
}

/* ===== AUTH LAYOUT ===== */
.auth-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

.auth-visual {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

#authCanvas {
    width: 100%;
    height: 100%;
    object-fit: cover;
    mix-blend-mode: screen;
}

.auth-visual-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.6) 100%);
}

.auth-visual-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 40px;
}

.auth-brand {
    font-family: var(--font-display);
    font-size: 80px;
    letter-spacing: 0.3em;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 8px;
}

.auth-brand-sub {
    font-size: 12px;
    letter-spacing: 0.6em;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    display: block;
    margin-bottom: 60px;
}

.auth-visual-quote {
    font-family: var(--font-serif);
    font-size: 28px;
    font-style: italic;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.4;
    max-width: 400px;
    margin: 0 auto;
}

.auth-visual-quote span {
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-panel {
    width: 480px;
    flex-shrink: 0;
    background: var(--black-card);
    border-left: 1px solid var(--black-border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    animation: slideIn 0.6s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(40px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.auth-panel-inner {
    padding: 60px 48px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.auth-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    transition: color 0.3s;
    margin-bottom: 50px;
}

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

.auth-back svg {
    width: 14px;
    height: 14px;
}

/* ===== TABS ===== */
.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--black-border);
    margin-bottom: 40px;
}

.auth-tab {
    flex: 1;
    padding: 14px;
    text-align: center;
    font-size: 11px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.35);
    cursor: pointer;
    border-bottom: 1px solid transparent;
    transition: all 0.3s;
    background: none;
    border: none;
    font-family: var(--font-sans);
    border-bottom: 2px solid transparent;
}

.auth-tab.active {
    color: var(--gold);
    border-bottom-color: var(--gold);
}

.auth-tab:hover {
    color: var(--white-dim);
}

/* ===== FORMS ===== */
.auth-form {
    display: none;
    flex-direction: column;
    flex: 1;
}

.auth-form.active {
    display: flex;
}

.auth-title {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 300;
    margin-bottom: 8px;
    line-height: 1.1;
}

.auth-subtitle {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 36px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 10px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    padding: 14px 16px;
    color: var(--white);
    font-size: 14px;
    outline: none;
    font-family: var(--font-sans);
    transition: border-color 0.3s, background 0.3s;
}

.form-input:focus {
    border-color: var(--gold);
    background: rgba(201, 168, 76, 0.04);
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.2);
}

.input-group {
    position: relative;
}

.input-group .form-input {
    padding-right: 48px;
}

.input-toggle {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    background: none;
    border: none;
    transition: color 0.3s;
}

.input-toggle:hover {
    color: var(--gold);
}

.form-row {
    display: flex;
    gap: 16px;
}

.form-row .form-group {
    flex: 1;
}

.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.form-check input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--gold);
    cursor: pointer;
}

.form-check span {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}

.form-forgot {
    font-size: 12px;
    color: var(--gold);
    text-decoration: none;
    transition: opacity 0.3s;
}

.form-forgot:hover {
    opacity: 0.7;
}

.auth-btn {
    width: 100%;
    padding: 16px;
    background: var(--gold-gradient);
    color: var(--black);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s;
    font-family: var(--font-sans);
    position: relative;
    overflow: hidden;
    margin-bottom: 24px;
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(201, 168, 76, 0.3);
}

.auth-btn:active {
    transform: translateY(0);
}

.auth-btn-loading {
    pointer-events: none;
}

.auth-btn-loading::after {
    content: '';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid rgba(0, 0, 0, 0.3);
    border-top-color: var(--black);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: translateY(-50%) rotate(360deg);
    }
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    color: rgba(255, 255, 255, 0.2);
    font-size: 11px;
    letter-spacing: 0.2em;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.social-auth {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
}

.social-auth-btn {
    flex: 1;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    background: transparent;
    color: var(--white-dim);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s;
    font-family: var(--font-sans);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.social-auth-btn:hover {
    border-color: var(--gold);
    color: var(--gold);
    background: rgba(201, 168, 76, 0.05);
}

.auth-terms {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.3);
    line-height: 1.7;
    margin-top: auto;
}

.auth-terms a {
    color: var(--gold);
    text-decoration: none;
}

/* ===== SUCCESS ===== */
.auth-success {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    text-align: center;
    padding: 40px;
}

.auth-success.active {
    display: flex;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.auth-success-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gold-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin-bottom: 24px;
    box-shadow: 0 0 40px rgba(201, 168, 76, 0.3);
}

.auth-success h2 {
    font-family: var(--font-serif);
    font-size: 32px;
    font-weight: 300;
    margin-bottom: 12px;
}

.auth-success p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    margin-bottom: 32px;
}

/* ===== ERROR MESSAGE ===== */
.form-error {
    color: #E53E3E;
    font-size: 12px;
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.input-error {
    border-color: #E53E3E !important;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .auth-visual {
        display: none;
    }

    .auth-panel {
        width: 100%;
        border-left: none;
    }
}

@media (max-width: 480px) {
    .auth-panel-inner {
        padding: 40px 24px;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }
}