/* Mobile-First Login Page - Complete Redesign */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

:root {
    --primary: #000000;
    --primary-hover: #1a1a1a;
    --bg-color: #ffffff;
    --border-color: #e5e7eb;
    --text-primary: #000000;
    --text-secondary: #6b7280;
    --error-bg: #fef2f2;
    --error-border: #fca5a5;
    --error-text: #991b1b;
    --success-bg: #f0fdf4;
    --success-border: #86efac;
    --success-text: #166534;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --safe-area-top: env(safe-area-inset-top, 0px);
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
}

html {
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    width: 100%;
    height: 100%;
    position: fixed;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'SF Pro Display', Arial, sans-serif;
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    padding-top: calc(20px + var(--safe-area-top));
    padding-bottom: calc(20px + var(--safe-area-bottom));
    color: var(--text-primary);
    overflow-x: hidden;
    width: 100%;
    position: fixed;
    -webkit-overflow-scrolling: touch;
}

.login-wrapper {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

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

.login-logo {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: block;
    filter: brightness(0);
}

.login-header h1 {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-header p {
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 500;
}

.login-container {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px 24px;
    box-shadow: var(--shadow-lg);
    width: 100%;
}

.login-form {
    margin-top: 24px;
}

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

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group label::after {
    content: ' *';
    color: var(--error-text);
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    font-size: 16px; /* Prevents zoom on iOS */
    line-height: 20px;
    color: var(--text-primary);
    background-color: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.2s;
    outline: none;
    font-weight: 500;
    -webkit-appearance: none;
    appearance: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.08);
}

.form-control::placeholder {
    color: var(--text-secondary);
    font-weight: 400;
}

.btn {
    display: block;
    width: 100%;
    padding: 16px 20px;
    font-size: 15px;
    font-weight: 700;
    line-height: 20px;
    text-align: center;
    text-decoration: none;
    border: 2px solid;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    outline: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-height: 52px;
    -webkit-tap-highlight-color: transparent;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    color: #ffffff;
    background-color: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-primary:focus {
    box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.1);
}

.error-message {
    display: block;
    padding: 14px 16px;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--error-text);
    background-color: var(--error-bg);
    border: 2px solid var(--error-border);
    border-radius: 12px;
    font-weight: 500;
    line-height: 1.5;
}

.success-message {
    display: block;
    padding: 14px 16px;
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--success-text);
    background-color: var(--success-bg);
    border: 2px solid var(--success-border);
    border-radius: 12px;
    font-weight: 500;
    line-height: 1.5;
}

.login-footer {
    margin-top: 24px;
    padding: 20px;
    text-align: center;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background-color: var(--bg-color);
}

.login-footer p {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 0;
    font-weight: 500;
}

.login-footer strong {
    color: var(--text-primary);
    font-weight: 700;
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Two-Factor Authentication Styles */
.two-factor-info {
    text-align: center;
    margin-bottom: 24px;
}

.two-factor-info h2 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.two-factor-info p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.5;
}

.btn-secondary {
    display: block;
    width: 100%;
    padding: 14px 20px;
    font-size: 14px;
    font-weight: 600;
    line-height: 20px;
    text-align: center;
    text-decoration: none;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    outline: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: transparent;
    color: var(--text-primary);
    margin-top: 12px;
    min-height: 48px;
}

.btn-secondary:active {
    background-color: var(--border-color);
    transform: scale(0.98);
}

/* OTP Input Styling */
#code {
    text-align: center;
    font-size: 32px;
    letter-spacing: 12px;
    font-weight: 700;
    font-family: 'SF Mono', 'Monaco', 'Courier New', monospace;
}

/* Responsive */
@media (max-width: 480px) {
    body {
        padding: 16px;
    }
    
    .login-wrapper {
        max-width: 100%;
    }
    
    .login-container {
        border: none;
        box-shadow: none;
        padding: 24px 20px;
    }
    
    .login-header h1 {
        font-size: 28px;
    }
    
    .form-control {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

/* Remember Me Checkbox */
.form-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary);
    flex-shrink: 0;
}

.form-group label[for="remember_me"] {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
    margin-bottom: 0;
}

.form-group label[for="remember_me"]::after {
    content: '';
}

.form-group label[for="remember_me"] span {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

/* Prevent text selection on mobile */
@media (max-width: 768px) {
    * {
        -webkit-user-select: none;
        user-select: none;
    }
    
    input, textarea {
        -webkit-user-select: auto;
        user-select: auto;
    }
}