/**
 * Login Page Styles
 * ResApp - Çıtır Lezzet Restaurant Panel
 * Split-screen design with brand showcase
 */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background: var(--color-gray-50);
    min-height: 100vh;
}

/* ============================================
   MAIN LAYOUT
============================================ */
.login-page {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

/* ============================================
   LEFT PANEL - BRAND
============================================ */
.login-brand {
    flex: 0 0 45%;
    background: var(--color-gray-900);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-16);
    position: relative;
    overflow: hidden;
}

.login-brand::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(249, 115, 22, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(249, 115, 22, 0.1) 0%, transparent 40%);
    animation: gradient-shift 15s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-3%, -3%); }
}

.brand-content {
    position: relative;
    z-index: 1;
    max-width: 480px;
}

/* Logo */
.brand-logo {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.brand-logo__icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-primary);
}

.brand-logo__icon i {
    font-size: 2rem;
    color: var(--color-white);
}

.brand-logo__text {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    letter-spacing: -0.5px;
}

.brand-logo__text span {
    color: var(--color-primary);
}

/* Brand Title */
.brand-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-6);
}

.brand-title span {
    color: var(--color-primary);
}

/* Features */
.brand-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    margin-top: var(--space-10);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
}

.feature-item__icon {
    width: 48px;
    height: 48px;
    background: rgba(249, 115, 22, 0.15);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-item__icon i {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.feature-item__content h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    margin-bottom: var(--space-1);
}

.feature-item__content p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
    line-height: var(--line-height-relaxed);
}

/* ============================================
   RIGHT PANEL - FORM
============================================ */
.login-form-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-10);
    background: var(--color-white);
}

.login-form-wrapper {
    width: 100%;
    max-width: 420px;
    animation: fade-in 0.4s ease;
}

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

/* Mobile Logo */
.mobile-logo {
    display: none;
    text-align: center;
    margin-bottom: var(--space-8);
}

.mobile-logo__icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-3);
}

.mobile-logo__icon i {
    font-size: 1.75rem;
    color: var(--color-white);
}

.mobile-logo__text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.mobile-logo__text span {
    color: var(--color-primary);
}

/* Form Header */
.login-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.login-header__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.login-header__subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* Alert Messages */
.alert {
    display: none;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-5);
    animation: fade-in 0.3s ease;
}

.alert.is-visible {
    display: flex;
}

.alert i {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.alert--error {
    background: var(--color-error-light);
    color: var(--color-error-dark);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert--success {
    background: var(--color-success-light);
    color: var(--color-success-dark);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Form */
.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

/* Form Group */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

.form-input-wrapper {
    position: relative;
}

.form-input {
    width: 100%;
    height: 48px;
    padding: 0 var(--space-4);
    padding-left: 44px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    color: var(--color-text-primary);
    background: var(--color-white);
    transition: var(--transition-base);
}

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

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

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

.form-input.is-invalid {
    border-color: var(--color-error);
}

.form-input.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-input__icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.25rem;
    color: var(--color-gray-400);
    pointer-events: none;
    transition: var(--transition-base);
}

.form-input:focus ~ .form-input__icon {
    color: var(--color-primary);
}

/* Password Toggle */
.password-toggle {
    position: absolute;
    right: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: var(--space-1);
    cursor: pointer;
    color: var(--color-gray-400);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

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

.form-input-wrapper:has(.password-toggle) .form-input {
    padding-right: 44px;
}

/* Form Error */
.form-error {
    display: none;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-xs);
    color: var(--color-error);
    margin-top: var(--space-1);
}

.form-error i {
    font-size: 0.875rem;
}

.form-error.is-visible {
    display: flex;
}

/* Form Actions */
.form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-1);
}

.remember-me {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
}

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

.remember-me span {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.forgot-password {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: var(--transition-base);
}

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

/* Primary Button */
.btn-primary {
    width: 100%;
    height: 48px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    background: var(--gradient-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-primary);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-primary.is-loading {
    pointer-events: none;
}

.btn-primary.is-loading .btn-text {
    opacity: 0;
}

.btn-primary.is-loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-white);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Divider */
.divider {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-6) 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-gray-200);
}

.divider span {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Social Buttons */
.social-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.btn-social {
    width: 100%;
    height: 48px;
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    transition: var(--transition-base);
}

.btn-social:hover {
    background: var(--color-gray-50);
    border-color: var(--color-gray-400);
}

.btn-social svg,
.btn-social i {
    width: 20px;
    height: 20px;
    font-size: 1.25rem;
}

/* Footer */
.login-footer {
    margin-top: var(--space-8);
    text-align: center;
}

.login-footer p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.login-footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
}

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

.copyright {
    margin-top: var(--space-10);
    padding-top: var(--space-5);
    border-top: 1px solid var(--color-gray-200);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-align: center;
}

/* ============================================
   RESPONSIVE
============================================ */
@media (max-width: 1024px) {
    .login-brand {
        flex: 0 0 40%;
        padding: var(--space-10);
    }

    .brand-title {
        font-size: var(--font-size-3xl);
    }
}

@media (max-width: 768px) {
    .login-page {
        flex-direction: column;
    }

    .login-brand {
        display: none;
    }

    .login-form-panel {
        padding: var(--space-6);
        justify-content: flex-start;
        padding-top: var(--space-12);
    }

    .mobile-logo {
        display: block;
    }

    .login-form-wrapper {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .login-form-panel {
        padding: var(--space-5);
        padding-top: var(--space-10);
    }

    .login-header__title {
        font-size: var(--font-size-xl);
    }

    .form-actions {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }

    .forgot-password {
        align-self: flex-end;
    }
}

/* ============================================
   ACCESSIBILITY
============================================ */
.btn-primary:focus-visible,
.btn-social:focus-visible,
.form-input:focus-visible,
.forgot-password:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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