/* ===================================
   Auth Page - Matching Landing Page Theme
   =================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@500;600;700&display=swap');

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

:root {
    /* Color Palette - Matching Landing Page */
    --primary: #B89778;
    --primary-dark: #8B6F52;
    --primary-gradient: linear-gradient(135deg, #D4A574 0%, #B89778 100%);
    --text-primary: #2C2421;
    --text-secondary: #6B635F;
    --text-muted: #9B8F89;
    --border: rgba(180, 151, 120, 0.2);
    --border-focus: #B89778;
    --error: #D97706;
    --success: #059669;
    --background: #FFF8F3;
    --background-alt: #F5EDE5;
    --white: #FFFFFF;
    --shadow-sm: 0 2px 8px rgba(180, 151, 120, 0.08);
    --shadow-md: 0 4px 16px rgba(180, 151, 120, 0.12);
    --shadow-lg: 0 8px 25px rgba(180, 151, 120, 0.15);
    --shadow-xl: 0 15px 40px rgba(180, 151, 120, 0.2);
    --radius: 16px;
    --radius-sm: 12px;
    --transition: all 0.3s ease;
}

html {
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: linear-gradient(165deg, #FFF8F3 0%, #F5EDE5 50%, #FFF5EE 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text-primary);
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
}

/* Animated Background Elements */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(212, 165, 116, 0.08) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    bottom: -50%;
    left: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(184, 151, 120, 0.08) 0%, transparent 70%);
    animation: float 25s ease-in-out infinite reverse;
    pointer-events: none;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(30px, 30px);
    }
}

/* ===================================
   Auth Container (Direct Form Display)
   =================================== */

.auth-container {
    width: 100%;
    max-width: 520px;
    animation: fadeInUp 0.6s ease-out;
    position: relative;
    z-index: 1;
}

.auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 48px 40px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-title {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 38px;
    font-weight: 600;
    background: linear-gradient(135deg, #5C5552 0%, #8B6F52 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    letter-spacing: -0.8px;
    line-height: 1.2;
}

.auth-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: -0.2px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   Modal Overlay & Container
   =================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(44, 36, 33, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.95) translateY(20px);
    transition: transform 0.3s ease;
    border: 1px solid var(--border);
}

.modal-overlay.active .modal-container {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 6px;
    border-radius: 8px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.modal-close:hover {
    background: var(--background);
    color: var(--text-primary);
}

.modal-close:focus {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

/* ===================================
   Modal Header
   =================================== */

.modal-header {
    padding: 40px 40px 24px;
    text-align: center;
}

.modal-title {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 32px;
    font-weight: 600;
    background: linear-gradient(135deg, #5C5552 0%, #8B6F52 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    letter-spacing: -0.8px;
}

.modal-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: -0.1px;
}

/* ===================================
   Tab Navigation
   =================================== */

.tab-navigation {
    display: flex;
    gap: 8px;
    padding: 0 40px;
    margin-bottom: 24px;
    background: var(--background);
    border-radius: var(--radius-sm);
    margin: 0 40px 24px;
    padding: 6px;
}

.tab-btn {
    flex: 1;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.2px;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.5);
}

.tab-btn.active {
    background: var(--white);
    color: var(--primary-dark);
    box-shadow: var(--shadow-sm);
}

.tab-btn:focus {
    outline: 2px solid var(--border-focus);
    outline-offset: -2px;
}

/* ===================================
   Tab Panels
   =================================== */

.tab-panel {
    display: none;
    padding: 0 40px 40px;
    animation: fadeIn 0.3s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ===================================
   Alert Messages
   =================================== */

.alert {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    margin-bottom: 20px;
    font-weight: 500;
    letter-spacing: -0.1px;
}

.alert-error {
    background-color: #FEF3C7;
    color: #92400E;
    border: 1px solid #FCD34D;
}

.alert-success {
    background-color: #D1FAE5;
    color: #065F46;
    border: 1px solid #6EE7B7;
}

/* ===================================
   Form Styles
   =================================== */

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    letter-spacing: -0.1px;
}

.form-input {
    width: 100%;
    padding: 13px 16px;
    font-size: 15px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--text-primary);
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.1px;
}

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

.form-input:hover {
    border-color: rgba(184, 151, 120, 0.4);
}

.form-input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 4px rgba(184, 151, 120, 0.1);
}

.form-input[aria-invalid="true"] {
    border-color: var(--error);
}

.form-input[aria-invalid="true"]:focus {
    box-shadow: 0 0 0 4px rgba(217, 119, 6, 0.1);
}

.error-message {
    font-size: 13px;
    color: var(--error);
    min-height: 18px;
    display: block;
    letter-spacing: -0.1px;
}

/* ===================================
   Buttons
   =================================== */

.btn {
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Inter', sans-serif;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: -0.2px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #C9A88F 0%, #A88565 100%);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

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

.btn-primary:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(184, 151, 120, 0.3);
}

.btn-large {
    padding: 18px 48px;
    font-size: 17px;
    border-radius: 14px;
}

.btn-full {
    width: 100%;
}

.btn-social {
    background: var(--white);
    color: var(--text-primary);
    border: 1.5px solid var(--border);
    padding: 12px 16px;
    font-weight: 500;
}

.btn-social:hover:not(:disabled) {
    background: var(--background);
    border-color: rgba(184, 151, 120, 0.4);
    transform: translateY(-1px);
}

.btn-social:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(184, 151, 120, 0.1);
}

.social-icon {
    width: 20px;
    height: 20px;
}

/* ===================================
   Social Buttons
   =================================== */

.social-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* ===================================
   Divider
   =================================== */

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 8px 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border);
}

.divider span {
    padding: 0 16px;
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: 0.1px;
}

/* ===================================
   Links & Footer Elements
   =================================== */

.form-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: -8px;
}

.forgot-link,
.link {
    color: var(--primary-dark);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    letter-spacing: -0.1px;
}

.forgot-link:hover,
.link:hover {
    color: var(--primary);
    text-decoration: underline;
}

.forgot-link:focus,
.link:focus {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
    border-radius: 4px;
}

.terms-text {
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.6;
    margin-top: 4px;
    letter-spacing: -0.1px;
}

/* ===================================
   Focus Visible Styles (Accessibility)
   =================================== */

*:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

button:focus-visible,
.btn:focus-visible {
    outline: 3px solid var(--border-focus);
    outline-offset: 2px;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 640px) {
    body {
        padding: 12px;
    }

    .welcome-content {
        padding: 48px 32px;
        border-radius: 20px;
    }

    .welcome-title {
        font-size: 36px;
        letter-spacing: -0.8px;
    }

    .welcome-subtitle {
        font-size: 16px;
        margin-bottom: 28px;
    }

    .modal-container {
        max-height: 95vh;
        border-radius: 16px;
    }

    .modal-header {
        padding: 32px 24px 20px;
    }

    .modal-title {
        font-size: 28px;
        letter-spacing: -0.6px;
    }

    .modal-subtitle {
        font-size: 14px;
    }

    .tab-navigation {
        margin: 0 24px 20px;
    }

    .tab-panel {
        padding: 0 24px 32px;
    }

    .form-input {
        padding: 12px 14px;
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .btn {
        padding: 12px 20px;
        font-size: 15px;
    }

    .btn-large {
        padding: 16px 40px;
        font-size: 16px;
    }

    .social-buttons {
        grid-template-columns: 1fr;
    }

    .btn-social {
        width: 100%;
    }

    .modal-close {
        top: 16px;
        right: 16px;
    }
}

@media (max-width: 375px) {
    .welcome-content {
        padding: 40px 24px;
    }

    .welcome-title {
        font-size: 32px;
    }

    .modal-header {
        padding: 28px 20px 16px;
    }

    .tab-navigation {
        margin: 0 20px 16px;
    }

    .tab-panel {
        padding: 0 20px 28px;
    }

    .auth-form {
        gap: 16px;
    }
}

/* ===================================
   Mobile Responsive Styles for Auth Card
   =================================== */

@media (max-width: 768px) {
    .auth-card {
        padding: 36px 28px;
        border-radius: 20px;
    }

    .auth-title {
        font-size: 32px;
        letter-spacing: -0.6px;
    }

    .auth-subtitle {
        font-size: 15px;
    }
}

@media (max-width: 640px) {
    body {
        padding: 16px;
    }

    .auth-card {
        padding: 32px 24px;
        border-radius: 16px;
    }

    .auth-title {
        font-size: 28px;
    }

    .auth-subtitle {
        font-size: 14px;
    }

    .auth-header {
        margin-bottom: 24px;
    }

    .tab-navigation {
        gap: 8px;
    }

    .tab-btn {
        padding: 12px 20px;
        font-size: 14px;
    }

    .form-group {
        margin-bottom: 18px;
    }

    .btn {
        padding: 13px 24px;
        font-size: 14px;
    }
}

/* ===================================
   Reduced Motion Support
   =================================== */

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