/* ==========================================================================
   Domain Registrar Portal — Global Styles
   ========================================================================== */

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --danger: #dc2626;
    --danger-light: #fef2f2;
    --success: #16a34a;
    --success-light: #f0fdf4;
    --warning: #d97706;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
    --shadow-xl: 0 20px 25px rgba(0,0,0,.1), 0 8px 10px rgba(0,0,0,.04);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition: 150ms ease;
}

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

body {
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-50);
    -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   Login Page
   ========================================================================== */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
    padding: 20px;
}

.login-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 420px;
    padding: 40px;
    animation: slideUp .4s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

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

.login-logo-icon {
    width: 48px;
    height: 48px;
    background: var(--primary);
    border-radius: var(--radius);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.login-logo-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--white);
}

.login-logo h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
}

.login-logo p {
    font-size: 14px;
    color: var(--gray-500);
    margin: 4px 0 0;
}

/* Form elements */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    font-size: 15px;
    font-family: var(--font);
    color: var(--gray-900);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}

.form-input::placeholder {
    color: var(--gray-400);
}

.form-input.error {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, .1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 11px 20px;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background var(--transition), opacity var(--transition);
    outline: none;
}

.btn:focus-visible {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .3);
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-primary:disabled {
    opacity: .6;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

/* Spinner */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin .6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Alert messages */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 20px;
    display: none;
}

.alert.show {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    animation: fadeIn .2s ease;
}

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

.alert-error {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid #fecaca;
}

.alert-success {
    background: var(--success-light);
    color: var(--success);
    border: 1px solid #bbf7d0;
}

.alert-icon {
    flex-shrink: 0;
    margin-top: 1px;
}

/* Password toggle */
.input-wrapper {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-400);
    padding: 4px;
    display: flex;
    align-items: center;
}

.password-toggle:hover {
    color: var(--gray-600);
}

/* 2FA section */
.twofa-section {
    display: none;
}

.twofa-section.show {
    display: block;
    animation: fadeIn .3s ease;
}

.otp-input {
    text-align: center;
    font-size: 24px;
    letter-spacing: 8px;
    font-weight: 600;
}

.twofa-info {
    text-align: center;
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 12px;
}

/* Language switcher */
.lang-switch {
    display: inline-flex;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    overflow: hidden;
}

.lang-switch button {
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font);
    border: none;
    background: var(--white);
    color: var(--gray-500);
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
}

.lang-switch button + button {
    border-left: 1px solid var(--gray-200);
}

.lang-switch button.active {
    background: var(--primary);
    color: var(--white);
}

.lang-switch button:hover:not(.active) {
    background: var(--gray-100);
    color: var(--gray-700);
}

/* Register/Login link */
.login-link {
    text-align: center;
    margin-top: 16px;
    font-size: 13px;
    color: var(--gray-500);
}

.login-link a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    margin-left: 4px;
}

.login-link a:hover {
    text-decoration: underline;
}

/* Footer */
.login-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-200);
    font-size: 13px;
    color: var(--gray-500);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 28px 24px;
    }
    .login-logo h1 {
        font-size: 20px;
    }
}