/* ==================== Auth Pages ==================== */
/* ==================== Light Theme (Default) ==================== */
:root,
:root[data-theme='light'] {
    /* Base Color Palette - Professional Blue */
    --color-primary: #003366;
    --color-primary-variant: #0055AA;
    --color-accent: #0077CC;
    --color-background: #F5F5F5;
    --color-surface: #FFFFFF;
    --color-text: #333333;
    --color-text-secondary: #777777;
    --color-muted: #EEEEEE;
    --color-success: #2E8A3A;
    --color-warning: #E0A800;
    --color-danger: #D9534F;
    --color-border: #DDDDDD;
    
    /* Legacy mappings for compatibility */
    --brand-navy: var(--color-primary);
    --brand-cyan: var(--color-accent);
    --brand-gray: var(--color-muted);
    --primary-color: var(--color-accent);
    --primary-dark: var(--color-primary-variant);
    --secondary-color: var(--color-muted);
    --accent-color: var(--color-accent);
    --success-color: var(--color-success);
    --warning-color: var(--color-warning);
    --danger-color: var(--color-danger);
    --bg-primary: var(--color-primary);
    --bg-secondary: var(--color-surface);
    --bg-tertiary: var(--color-muted);
    --text-primary: var(--color-text);
    --text-secondary: var(--color-text-secondary);
    --text-tertiary: var(--color-text-secondary);
    --border-color: var(--color-border);
    --border-color-hover: var(--color-accent);
    --hover-bg: rgba(0, 119, 204, 0.08);
    
    /* Shadows */
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 20px rgba(0, 119, 204, 0.2);
    
    /* Input backgrounds */
    --input-bg: #FFFFFF;
    --input-text: var(--color-text);
    
    /* Responsive spacing */
    --container-padding: clamp(1rem, 4vw, 2rem);
    --section-padding: clamp(2rem, 6vw, 4rem);
}

/* ==================== Dark Theme ==================== */
:root[data-theme='dark'] {
    /* Base Color Palette - Dark Mode */
    --color-primary: #1a1a2e;
    --color-primary-variant: #16213e;
    --color-accent: #0088DD;
    --color-background: #0E0E10;
    --color-surface: #1A1A1A;
    --color-text: #E0E0E0;
    --color-text-secondary: #B0B0B0;
    --color-muted: #2A2A2A;
    --color-success: #4CAF50;
    --color-warning: #FFB300;
    --color-danger: #F44336;
    --color-border: #333333;
    
    /* Legacy mappings for compatibility */
    --brand-navy: var(--color-primary);
    --brand-cyan: var(--color-accent);
    --brand-gray: var(--color-muted);
    --primary-color: var(--color-accent);
    --primary-dark: var(--color-primary-variant);
    --secondary-color: var(--color-muted);
    --accent-color: var(--color-accent);
    --success-color: var(--color-success);
    --warning-color: var(--color-warning);
    --danger-color: var(--color-danger);
    --bg-primary: var(--color-primary);
    --bg-secondary: var(--color-surface);
    --bg-tertiary: var(--color-muted);
    --text-primary: var(--color-text);
    --text-secondary: var(--color-text-secondary);
    --text-tertiary: var(--color-text-secondary);
    --border-color: var(--color-border);
    --border-color-hover: var(--color-accent);
    --hover-bg: rgba(0, 136, 221, 0.15);
    
    /* Shadows */
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(0, 136, 221, 0.4);
    
    /* Input backgrounds */
    --input-bg: #242424;
    --input-text: var(--color-text);
}

* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.auth-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--color-background);
}

.auth-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--container-padding);
}

.auth-card {
    width: 100%;
    max-width: clamp(320px, 90vw, 420px);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    padding: clamp(1.5rem, 4vw, 2rem);
    backdrop-filter: blur(10px);
}

.auth-card h1 {
    font-size: clamp(1.5rem, 4vw, 1.75rem);
    margin-bottom: 0.5rem;
    text-align: center;
    color: var(--color-text);
}

.auth-subtitle {
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: clamp(0.875rem, 2vw, 1rem);
}

.auth-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1rem;
}

.auth-divider {
    display: flex;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
    color: var(--color-text-secondary);
    margin: 1.25rem 0;
}

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

.auth-footer-text {
    text-align: center;
    color: var(--color-text-secondary);
    margin-top: 1rem;
    font-size: clamp(0.875rem, 2vw, 1rem);
}

.auth-footer-text a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

.auth-footer-text a:hover {
    color: var(--color-primary-variant);
    text-shadow: 0 0 8px rgba(0, 119, 204, 0.3);
    text-decoration: underline;
}

.oauth-buttons {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
}

.oauth-button {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: clamp(0.625rem, 2vw, 0.75rem) 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    text-align: center;
    min-height: 44px;
    font-size: clamp(0.875rem, 2vw, 1rem);
}

.oauth-button:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: var(--hover-bg);
}

/* Message boxes */
.message-box {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    border: 1px solid;
    animation: slideDown 0.3s ease;
}

.message-success {
    background: rgba(46, 138, 58, 0.1);
    border-color: rgba(46, 138, 58, 0.3);
    color: var(--color-success);
}

.message-error {
    background: rgba(217, 83, 79, 0.1);
    border-color: rgba(217, 83, 79, 0.3);
    color: var(--color-danger);
}

.message-box p {
    margin: 0;
    font-size: clamp(0.875rem, 2vw, 0.95rem);
    line-height: 1.5;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form help text */
.form-help {
    display: block;
    margin-top: 0.5rem;
    font-size: clamp(0.75rem, 1.5vw, 0.85rem);
    color: var(--color-text-secondary);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-text);
    font-weight: 600;
    font-size: clamp(0.875rem, 2vw, 1rem);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: clamp(0.625rem, 2vw, 0.75rem);
    background: var(--input-bg);
    color: var(--input-text);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-size: clamp(0.875rem, 2vw, 1rem);
    font-family: inherit;
    min-height: 44px;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent);
}

.form-group input:invalid:not(:focus):not(:placeholder-shown) {
    border-color: var(--color-danger);
}

.form-group input:valid:not(:placeholder-shown) {
    border-color: var(--color-success);
}

/* Loading state */
.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

/* Extra small devices (phones): max-width 575px */
@media (max-width: 575px) {
    .auth-container {
        padding: 1rem;
    }
    
    .auth-card {
        padding: clamp(1rem, 3vw, 1.25rem);
        border-radius: 10px;
    }
    
    .auth-card h1 {
        font-size: 1.5rem;
    }
    
    .message-box {
        padding: 0.75rem;
        font-size: clamp(0.875rem, 2vw, 0.9rem);
    }
    
    .auth-actions {
        gap: 0.5rem;
    }
    
    .oauth-buttons {
        gap: 0.5rem;
    }
}

/* Small devices (tablets): 576px-767px */
@media (min-width: 576px) and (max-width: 767px) {
    .auth-card {
        max-width: 400px;
    }
}

/* Medium devices (small laptops): 768px-991px */
@media (min-width: 768px) and (max-width: 991px) {
    .auth-card {
        max-width: 420px;
    }
}

/* Large devices (desktops): 992px-1199px */
@media (min-width: 992px) and (max-width: 1199px) {
    .auth-card {
        max-width: 450px;
    }
}

/* Extra large (wide screens): 1200px+ */
@media (min-width: 1200px) {
    .auth-card {
        max-width: 480px;
    }
}