/**
 * Login Page Styles
 * 
 * Styles for the Collekton login/authentication page.
 * Built on core CSS (reset, variables, typography, layout, forms).
 */

/* =========================================
 * PAGE LAYOUT
 * ========================================= */

.login-container {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--color-neutral-50);
}

@media (max-width: 1024px) {
    .login-container {
        grid-template-columns: 1fr;
    }
    .login-hero {
        display: none;
    }
}

/* =========================================
 * HERO SECTION
 * ========================================= */

.login-hero {
    position: relative;
    background: linear-gradient(135deg, var(--color-primary-950) 0%, var(--color-primary-800) 50%, var(--color-accent-900) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-12);
    overflow: hidden;
}

.login-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(216, 147, 43, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(216, 147, 43, 0.1) 0%, transparent 40%);
}

.login-hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 480px;
}

.login-hero-logo {
    font-family: var(--font-serif);
    font-size: var(--text-5xl);
    font-weight: var(--font-semibold);
    color: var(--color-neutral-0);
    letter-spacing: var(--tracking-tight);
    margin-bottom: var(--space-6);
}

.login-hero-tagline {
    font-size: var(--text-xl);
    color: var(--color-neutral-300);
    font-weight: var(--font-light);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-10);
}

.login-hero-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    text-align: left;
}

.login-hero-feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-neutral-200);
    font-size: var(--text-sm);
}

.login-hero-feature svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent-400);
    flex-shrink: 0;
}

/* =========================================
 * FORM SECTION
 * ========================================= */

.login-form-section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-8);
    background: var(--color-neutral-0);
}

.dark .login-form-section {
    background: var(--color-neutral-900);
}

.login-form-wrapper {
    width: 100%;
    max-width: 400px;
}

.login-form-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.login-form-header h1 {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--color-neutral-900);
    margin-bottom: var(--space-2);
}

.dark .login-form-header h1 {
    color: var(--color-neutral-100);
}

.login-form-header p {
    font-size: var(--text-sm);
    color: var(--color-neutral-500);
}

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

.login-form .form-group label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-neutral-700);
}

.dark .login-form .form-group label {
    color: var(--color-neutral-300);
}

.login-form input {
    height: var(--input-height-lg);
    font-size: var(--text-base);
}

.login-btn {
    height: var(--btn-height-lg);
    font-size: var(--text-base);
    margin-top: var(--space-3);
}

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

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

.dark .login-divider::before,
.dark .login-divider::after {
    background: var(--color-neutral-700);
}

.login-divider span {
    font-size: var(--text-xs);
    color: var(--color-neutral-400);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
}

/* =========================================
 * RESPONSE PANEL (API Debug)
 * ========================================= */

.response-panel {
    margin-top: var(--space-6);
    border: 1px solid var(--color-neutral-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-neutral-50);
}

.dark .response-panel {
    border-color: var(--color-neutral-700);
    background: var(--color-neutral-800);
}

.response-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    background: var(--color-neutral-100);
    border-bottom: 1px solid var(--color-neutral-200);
}

.dark .response-header {
    background: var(--color-neutral-700);
    border-color: var(--color-neutral-600);
}

.response-title {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-neutral-700);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.dark .response-title {
    color: var(--color-neutral-200);
}

.response-status {
    font-size: var(--text-xs);
    font-family: var(--font-mono);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
}

.response-status--success {
    background: var(--color-success-100);
    color: var(--color-success-700);
}

.response-status--error {
    background: var(--color-error-100);
    color: var(--color-error-700);
}

.response-body {
    padding: var(--space-4);
    max-height: 400px;
    overflow-y: auto;
}

.response-json {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-neutral-800);
    white-space: pre-wrap;
    word-break: break-word;
    line-height: var(--leading-relaxed);
}

.dark .response-json {
    color: var(--color-neutral-200);
}

/* JSON Syntax Highlighting */
.json-key {
    color: var(--color-accent-600);
}

.dark .json-key {
    color: var(--color-accent-400);
}

.json-string {
    color: var(--color-success-600);
}

.dark .json-string {
    color: var(--color-success-500);
}

.json-number {
    color: var(--color-info-600);
}

.dark .json-number {
    color: var(--color-info-400);
}

.json-boolean {
    color: var(--color-warning-600);
}

.dark .json-boolean {
    color: var(--color-warning-500);
}

.json-null {
    color: var(--color-neutral-400);
}

/* =========================================
 * STATUS MESSAGES
 * ========================================= */

.login-success {
    padding: var(--space-3) var(--space-4);
    background: var(--color-success-50);
    border: 1px solid var(--color-success-200);
    border-radius: var(--radius-md);
    color: var(--color-success-700);
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    animation: successPulse 1s ease-in-out infinite;
}

.dark .login-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.3);
    color: var(--color-success-500);
}

.login-success svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

@keyframes successPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.login-error {
    padding: var(--space-3) var(--space-4);
    background: var(--color-error-50);
    border: 1px solid var(--color-error-200);
    border-radius: var(--radius-md);
    color: var(--color-error-700);
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.dark .login-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--color-error-500);
}

.login-error svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* =========================================
 * LOADING STATE
 * ========================================= */

.login-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.login-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-neutral-0);
    border-right-color: transparent;
    border-radius: var(--radius-full);
    animation: spin 0.6s linear infinite;
}

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

/* =========================================
 * THEME TOGGLE
 * ========================================= */

.theme-toggle {
    position: fixed;
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-neutral-100);
    border: 1px solid var(--color-neutral-200);
    border-radius: var(--radius-full);
    color: var(--color-neutral-600);
    cursor: pointer;
    transition: all var(--duration-150);
    z-index: 100;
}

.theme-toggle:hover {
    background: var(--color-neutral-200);
    color: var(--color-neutral-800);
}

.dark .theme-toggle {
    background: var(--color-neutral-800);
    border-color: var(--color-neutral-700);
    color: var(--color-neutral-400);
}

.dark .theme-toggle:hover {
    background: var(--color-neutral-700);
    color: var(--color-neutral-200);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

/* =========================================
 * MOBILE LOGO
 * ========================================= */

.mobile-logo {
    display: none;
    font-family: var(--font-serif);
    font-size: var(--text-3xl);
    font-weight: var(--font-semibold);
    color: var(--color-accent-600);
    margin-bottom: var(--space-2);
}

.dark .mobile-logo {
    color: var(--color-accent-400);
}

@media (max-width: 1024px) {
    .mobile-logo {
        display: block;
    }
}