/* Serina Global Styles - SaaS Ready Design System */

/* Root variables from neon theme */
:root {
    --neon-green: #00FF9D;
    --neon-cyan: #00D4FF;
    --neon-pink: #FF006E;
    --neon-purple: #B026FF;
    --dark-bg: #0A0E1A;
    --darker-bg: #060913;
    --card-bg: rgba(16, 20, 32, 0.8);
    --border-color: rgba(0, 255, 157, 0.2);
    --text-primary: #FFFFFF;
    --text-secondary: #8B92A7;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
}

/* Global resets */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    overflow-x: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* App container */
.serina-app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
.serina-nav {
    background: var(--darker-bg);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-brand h1 {
    font-size: 24px;
    font-weight: 700;
    margin: 0;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    transition: all 0.3s ease;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
}

.nav-link:hover {
    color: var(--neon-green);
    background: rgba(0, 255, 157, 0.1);
}

.nav-link.active {
    color: var(--neon-green);
    background: rgba(0, 255, 157, 0.15);
    box-shadow: 0 0 10px rgba(0, 255, 157, 0.3);
}

/* Main content */
.serina-main {
    flex: 1;
    padding: var(--spacing-lg);
    max-width: 1920px;
    width: 100%;
    margin: 0 auto;
}

/* Cards */
.serina-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-md);
    backdrop-filter: blur(10px);
}

.serina-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.serina-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--neon-cyan);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.serina-card-body {
    color: var(--text-primary);
}

/* Buttons */
.serina-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    border: 1px solid var(--neon-green);
    background: transparent;
    color: var(--neon-green);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
}

.serina-btn:hover {
    background: var(--neon-green);
    color: var(--dark-bg);
    box-shadow: 0 0 20px rgba(0, 255, 157, 0.5);
}

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

.serina-btn-primary {
    background: var(--neon-green);
    color: var(--dark-bg);
}

.serina-btn-secondary {
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
}

.serina-btn-secondary:hover {
    background: var(--neon-cyan);
}

/* Inputs */
.serina-input {
    width: 100%;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.3s ease;
}

.serina-input:focus {
    outline: none;
    border-color: var(--neon-green);
    box-shadow: 0 0 10px rgba(0, 255, 157, 0.2);
}

.serina-input::placeholder {
    color: var(--text-secondary);
}

/* Grid layouts */
.serina-grid {
    display: grid;
    gap: var(--spacing-md);
}

.serina-grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.serina-grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.serina-grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Status indicators */
.status-success {
    color: var(--neon-green);
}

.status-warning {
    color: #FFB800;
}

.status-error {
    color: var(--neon-pink);
}

.status-info {
    color: var(--neon-cyan);
}

/* Loading states */
.serina-loading {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top-color: var(--neon-green);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Error UI */
.serina-error {
    position: fixed;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--card-bg);
    border: 1px solid var(--neon-pink);
    border-radius: 8px;
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: 0 0 30px rgba(255, 0, 110, 0.3);
    z-index: 9999;
}

.error-icon {
    font-size: 24px;
    color: var(--neon-pink);
}

.error-text {
    color: var(--text-primary);
    margin-right: var(--spacing-sm);
}

.serina-error .reload {
    padding: 4px 12px;
    border: 1px solid var(--neon-green);
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.serina-error .reload:hover {
    background: var(--neon-green);
    color: var(--dark-bg);
}

.serina-error .dismiss {
    cursor: pointer;
    padding: 4px 8px;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.serina-error .dismiss:hover {
    color: var(--text-primary);
}

/* Responsive design */
@media (max-width: 768px) {
    .serina-nav {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }

    .nav-links {
        width: 100%;
        justify-content: center;
    }

    .serina-main {
        padding: var(--spacing-sm);
    }

    .serina-grid-2,
    .serina-grid-3,
    .serina-grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Utility classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }