/**
 * LeadResponder.dev - Auth Pages Stylesheet
 * 
 * Dark Luxury Theme - Matching frontend design system
 */

/* ============ CSS RESET ============ */
*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    background: #0a0b0d;
}

/* ============ CSS VARIABLES ============ */
:root {
    /* Colors - Dark Luxury */
    --color-bg-deep: #0a0b0d;
    --color-bg-primary: #111318;
    --color-bg-elevated: #1a1d24;
    --color-bg-surface: #252a35;
    --color-bg-hover: #2f3542;

    /* Accent Colors */
    --color-gold: #d4a853;
    --color-gold-light: #f0c674;
    --color-gold-dark: #b8923f;
    --color-teal: #22c9a7;

    /* Text Colors */
    --color-text-primary: #ffffff;
    --color-text-secondary: #a8adb8;
    --color-text-muted: #6b7280;

    /* Gradients */
    --gradient-gold: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-light) 100%);
    --gradient-dark: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-deep) 100%);

    /* Typography */
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Effects */
    --shadow-glow: 0 0 40px rgba(212, 168, 83, 0.2);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

/* ============ AUTH LAYOUT ============ */
.auth-layout {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-dark);
    padding: 40px 24px;
    font-family: var(--font-body);
    position: relative;
}

/* Grain Texture Overlay */
.auth-layout::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.03;
    z-index: 1;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Radial gold glow effect */
.auth-layout::after {
    content: '';
    position: fixed;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(212, 168, 83, 0.08) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

.auth-container {
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 2;
}

/* ============ AUTH CARD ============ */
.auth-card {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.auth-header {
    text-align: center;
    padding: 40px 32px 32px;
    background: linear-gradient(180deg, rgba(212, 168, 83, 0.05) 0%, transparent 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
}

.auth-logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.auth-logo-text .dev {
    color: var(--color-gold);
}

.auth-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.auth-subtitle {
    color: var(--color-text-muted);
    margin-top: 8px;
    margin-bottom: 0;
    font-size: 0.9375rem;
}

/* ============ AUTH BODY ============ */
.auth-body {
    padding: 32px;
}

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

.auth-form .form-label {
    display: block;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
    font-size: 0.875rem;
}

.auth-form .form-label.required::after {
    content: ' *';
    color: var(--color-gold);
}

.auth-form .form-input {
    width: 100%;
    padding: 14px 18px;
    font-size: 1rem;
    font-family: var(--font-body);
    background: var(--color-bg-surface);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

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

.auth-form .form-input:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.auth-form .form-input:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.15);
}

.auth-form .form-input.error {
    border-color: #ef4444;
}

.form-help {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 6px;
}

.form-error {
    font-size: 0.75rem;
    color: #ef4444;
    margin-top: 6px;
}

/* ============ REMEMBER ME & FORGOT ============ */
.auth-remember {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.auth-remember label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    cursor: pointer;
}

.auth-remember input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-gold);
    cursor: pointer;
}

.auth-forgot {
    font-size: 0.875rem;
    color: var(--color-gold);
    transition: color var(--transition-fast);
}

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

/* ============ CHECKBOX STYLING ============ */
.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    cursor: pointer;
    line-height: 1.5;
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-gold);
    cursor: pointer;
    flex-shrink: 0;
    margin-top: 2px;
}

.form-checkbox a {
    color: var(--color-gold);
    text-decoration: none;
}

.form-checkbox a:hover {
    color: var(--color-gold-light);
    text-decoration: underline;
}

/* ============ BUTTONS ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--color-bg-deep);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(212, 168, 83, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid var(--color-bg-surface);
}

.btn-secondary:hover {
    background: var(--color-bg-surface);
    border-color: var(--color-bg-hover);
}

.auth-submit {
    width: 100%;
    padding: 16px;
    font-size: 1rem;
    font-weight: 600;
}

/* ============ DIVIDER ============ */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 28px 0;
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

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

/* ============ SOCIAL BUTTONS ============ */
.auth-social {
    display: flex;
    gap: 12px;
}

.auth-social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px;
    background: var(--color-bg-surface);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.auth-social-btn:hover {
    background: var(--color-bg-hover);
    border-color: rgba(255, 255, 255, 0.15);
}

.auth-social-btn svg {
    width: 20px;
    height: 20px;
}

/* ============ AUTH FOOTER ============ */
.auth-footer {
    text-align: center;
    padding: 24px 32px;
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.auth-footer p {
    margin: 0;
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}

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

.auth-footer a:hover {
    color: var(--color-gold-light);
}

/* ============ ALERTS ============ */
.auth-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 0.875rem;
}

.auth-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #86efac;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 0.875rem;
}

/* ============ PASSWORD STRENGTH ============ */
.password-strength {
    margin-top: 8px;
}

.password-strength-bar {
    height: 4px;
    background: var(--color-bg-surface);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.password-strength-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width var(--transition-base), background-color var(--transition-base);
}

.password-strength-fill.weak {
    width: 25%;
    background: #ef4444;
}

.password-strength-fill.fair {
    width: 50%;
    background: #f59e0b;
}

.password-strength-fill.good {
    width: 75%;
    background: var(--color-gold);
}

.password-strength-fill.strong {
    width: 100%;
    background: var(--color-teal);
}

.password-strength-text {
    font-size: 0.75rem;
    margin-top: 4px;
    color: var(--color-text-muted);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 480px) {
    .auth-layout {
        padding: 16px;
        align-items: flex-start;
        padding-top: 40px;
    }

    .auth-card {
        border-radius: var(--radius-md);
    }

    .auth-header {
        padding: 32px 24px 24px;
    }

    .auth-body {
        padding: 24px;
    }

    .auth-footer {
        padding: 20px 24px;
    }

    .auth-social {
        flex-direction: column;
    }

    .auth-remember {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}