/* ========================================
   CSS Custom Properties (Design Tokens)
   ======================================== */
:root {
    /* Colors */
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-primary-glow: rgba(99, 102, 241, 0.4);

    --color-bg: #0a0a0f;
    --color-surface: #12121a;
    --color-surface-elevated: #1a1a24;
    --color-border: #1e1e2e;
    --color-border-hover: #2e2e3e;

    --color-text: #ffffff;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;

    --color-success: #22c55e;
    --color-success-bg: rgba(34, 197, 94, 0.1);
    --color-error: #ef4444;
    --color-error-bg: rgba(239, 68, 68, 0.1);
    --color-warning: #f59e0b;
    --color-warning-bg: rgba(245, 158, 11, 0.1);

    /* Typography */
    --font-display: 'Outfit', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px var(--color-primary-glow);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-display);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;

    /* Subtle grid background */
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

main {
    flex: 1;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

/* ========================================
   Components: Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 0.875rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: var(--color-surface-elevated);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    border-color: var(--color-border-hover);
    background: var(--color-surface);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.05);
}

.btn-danger {
    background: transparent;
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.btn-danger:hover:not(:disabled) {
    background: var(--color-error);
    color: white;
}

.btn-danger-text {
    color: var(--color-error);
}

.btn-danger-text:hover:not(:disabled) {
    background: var(--color-error-bg);
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.75rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    padding: var(--space-sm);
    background: var(--color-surface-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 1rem;
    line-height: 1;
}

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

/* Loading state */
.btn .btn-loading {
    display: none;
}

.htmx-request .btn .btn-text {
    display: none;
}

.htmx-request .btn .btn-loading {
    display: inline;
}

/* ========================================
   Components: Cards
   ======================================== */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

/* ========================================
   Components: Forms
   ======================================== */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: 500;
    color: var(--color-text);
}

.form-input {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-display);
    font-size: 1rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

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

.form-hint {
    margin-top: var(--space-xs);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.form-hint a {
    margin-left: var(--space-sm);
}

.form-error {
    margin-top: var(--space-xs);
    font-size: 0.875rem;
    color: var(--color-error);
}

.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper .form-input {
    padding-right: 3rem;
}

.password-toggle {
    position: absolute;
    right: var(--space-md);
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity var(--transition-fast);
}

.password-toggle:hover {
    opacity: 1;
}

/* Form Messages */
.form-message {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    font-size: 0.875rem;
}

.form-message.error {
    background: var(--color-error-bg);
    border: 1px solid var(--color-error);
    color: var(--color-error);
}

.form-message.success {
    background: var(--color-success-bg);
    border: 1px solid var(--color-success);
    color: var(--color-success);
}

/* ========================================
   Components: Token Display
   ======================================== */
.token-display {
    margin: var(--space-lg) 0;
}

.token-box {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.token-value {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-primary);
    word-break: break-all;
    user-select: all;
    line-height: 1.5;
}

.copy-btn {
    flex-shrink: 0;
}

.copy-feedback {
    display: block;
    margin-top: var(--space-sm);
    font-size: 0.875rem;
    color: var(--color-success);
    min-height: 1.25rem;
}

/* ========================================
   Components: Service Cards
   ======================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.service-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all var(--transition-normal);
}

.service-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.service-card.connected {
    border-color: var(--color-success);
}

.service-card.invalid {
    border-color: var(--color-warning);
}

.service-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.service-icon {
    font-size: 1.5rem;
}

.service-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.service-description {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-lg);
}

.service-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.service-status.connected {
    color: var(--color-success);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-text-muted);
}

.service-status.connected .status-dot {
    background: var(--color-success);
}

.service-warning {
    font-size: 0.75rem;
    color: var(--color-warning);
    margin-bottom: var(--space-md);
    padding: var(--space-sm);
    background: var(--color-warning-bg);
    border-radius: var(--radius-sm);
}

.service-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* ========================================
   Components: Navigation
   ======================================== */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-text);
    text-decoration: none;
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.user-email {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* ========================================
   Components: Footer
   ======================================== */
.footer {
    padding: var(--space-xl);
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--color-border);
}

/* ========================================
   Components: Toast Notifications
   ======================================== */
#toast-container {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    pointer-events: none;
}

.toast {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    pointer-events: auto;
}

.toast.success {
    border-color: var(--color-success);
}

.toast.error {
    border-color: var(--color-error);
}

.toast.warning {
    border-color: var(--color-warning);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* ========================================
   Pages: Hero / Landing
   ======================================== */
.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 200px);
    padding: var(--space-2xl);
    text-align: center;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, var(--color-text), var(--color-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Features Section */
.features {
    padding: var(--space-3xl) var(--space-xl);
    text-align: center;
}

.features h2 {
    font-size: 2rem;
    margin-bottom: var(--space-2xl);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    max-width: 900px;
    margin: 0 auto;
}

.step {
    padding: var(--space-xl);
}

.step-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin: 0 auto var(--space-lg);
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.step p {
    color: var(--color-text-secondary);
}

/* Services Preview */
.services-preview {
    padding: var(--space-3xl) var(--space-xl);
    text-align: center;
    background: var(--color-surface);
}

.services-preview h2 {
    font-size: 2rem;
    margin-bottom: var(--space-2xl);
}

.services-badges {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.service-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-xl);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    min-width: 120px;
}

.service-badge.coming-soon {
    opacity: 0.5;
}

.badge-icon {
    font-size: 2rem;
}

.badge-soon {
    font-size: 0.625rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
    background: var(--color-surface-elevated);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
}

/* Security Section */
.security-section {
    padding: var(--space-3xl) var(--space-xl);
    text-align: center;
}

.security-section h2 {
    font-size: 2rem;
    margin-bottom: var(--space-2xl);
}

.security-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
}

.security-item {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
}

.security-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.security-item h4 {
    margin-bottom: var(--space-xs);
}

.security-item p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* CTA Section */
.cta-section {
    padding: var(--space-3xl) var(--space-xl);
    text-align: center;
    background: linear-gradient(180deg, transparent, var(--color-surface));
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.cta-section p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

/* ========================================
   Pages: Auth
   ======================================== */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 150px);
    padding: var(--space-xl);
}

.auth-card {
    width: 100%;
    max-width: 420px;
}

.auth-card h1 {
    font-size: 1.75rem;
    margin-bottom: var(--space-sm);
}

.auth-card .subtitle {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.auth-form {
    margin-bottom: var(--space-lg);
}

.auth-footer {
    text-align: center;
    color: var(--color-text-secondary);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

/* ========================================
   Pages: Dashboard
   ======================================== */
.dashboard {
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--space-xl);
}

.dashboard-header {
    margin-bottom: var(--space-2xl);
}

.dashboard-header h1 {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.dashboard-header p {
    color: var(--color-text-secondary);
}

.token-section {
    margin-bottom: var(--space-2xl);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
}

.section-header h2 {
    font-size: 1.25rem;
}

.token-expiry {
    font-size: 0.875rem;
    color: var(--color-warning);
    background: var(--color-warning-bg);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
}

.token-info {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
}

.token-actions {
    margin-top: var(--space-lg);
}

.services-section {
    margin-bottom: var(--space-2xl);
}

.services-section h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.section-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.help-section {
    background: var(--color-surface);
    border: 1px dashed var(--color-border);
}

.help-section h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-lg);
}

.help-steps {
    margin-left: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.help-steps li {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.help-note {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding: var(--space-md);
    background: var(--color-bg);
    border-radius: var(--radius-md);
}

/* ========================================
   Pages: Connect Service
   ======================================== */
.connect-page {
    display: flex;
    justify-content: center;
    padding: var(--space-xl);
}

.connect-card {
    width: 100%;
    max-width: 500px;
}

.back-link {
    display: inline-block;
    margin-bottom: var(--space-lg);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.back-link:hover {
    color: var(--color-text);
}

.service-header-large {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.service-icon-large {
    font-size: 3rem;
}

.service-header-large h1 {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

.service-header-large .subtitle {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.current-connection {
    margin-bottom: var(--space-xl);
    padding: var(--space-md);
    background: var(--color-success-bg);
    border: 1px solid var(--color-success);
    border-radius: var(--radius-md);
}

.status-connected {
    color: var(--color-success);
    font-size: 0.875rem;
}

.connect-form {
    margin-bottom: var(--space-xl);
}

.form-actions {
    margin-top: var(--space-xl);
}

.danger-zone {
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.danger-zone h4 {
    color: var(--color-error);
    margin-bottom: var(--space-sm);
}

.danger-zone p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
}

/* ========================================
   Utilities
   ======================================== */
.htmx-request {
    position: relative;
}

.htmx-request::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.5);
    border-radius: inherit;
    cursor: wait;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
    .hero {
        padding: var(--space-xl);
        min-height: calc(100vh - 250px);
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .navbar {
        padding: var(--space-md);
    }

    .nav-links {
        gap: var(--space-sm);
    }

    .user-email {
        display: none;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .dashboard {
        padding: var(--space-md);
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .steps {
        grid-template-columns: 1fr;
    }

    .security-features {
        grid-template-columns: 1fr;
    }

    #toast-container {
        left: var(--space-md);
        right: var(--space-md);
    }
}

@media (max-width: 480px) {
    .logo-text {
        display: none;
    }

    .auth-card {
        padding: var(--space-lg);
    }

    .connect-card {
        padding: var(--space-lg);
    }
}