/* ═══════════════════════════════════════════════════════════════
   KALY AI - Main Styles
   Global styles, typography, and layout
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ─────────────── Reset & Base ─────────────── */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-glass-hover);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* Selection */
::selection {
    background: rgba(139, 92, 246, 0.3);
    color: var(--text-primary);
}

/* ─────────────── Typography ─────────────── */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: var(--leading-tight);
    color: var(--text-primary);
}

h1 {
    font-size: var(--text-4xl);
}

h2 {
    font-size: var(--text-3xl);
}

h3 {
    font-size: var(--text-2xl);
}

h4 {
    font-size: var(--text-xl);
}

h5 {
    font-size: var(--text-lg);
}

h6 {
    font-size: var(--text-base);
}

p {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

a {
    color: var(--primary-400);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-300);
}

code,
pre {
    font-family: var(--font-mono);
}

code {
    background: var(--surface-glass);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
    color: var(--cyan-400);
}

pre {
    background: var(--bg-tertiary);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    overflow-x: auto;
    border: 1px solid var(--border-glass);
}

pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

/* ─────────────── Background Effects ─────────────── */

.bg-mesh {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
    z-index: -1;
}

.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(var(--border-glass) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-glass) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: -1;
    opacity: 0.5;
}

/* Particles Container */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-400);
    border-radius: 50%;
    opacity: 0;
    animation: particle-float 15s infinite;
}

.particle:nth-child(odd) {
    background: var(--cyan-400);
}

.particle:nth-child(3n) {
    background: var(--gold-400);
    width: 3px;
    height: 3px;
}

/* ─────────────── Layout ─────────────── */

.app-container {
    display: flex;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-base);
}

@media (max-width: 1024px) {
    .main-content {
        margin-left: 0;
    }
}

.page-content {
    flex: 1;
    padding: var(--space-6);
    max-width: 100%;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-narrow {
    max-width: 900px;
    margin: 0 auto;
}

/* ─────────────── Glass Card ─────────────── */

.glass-card {
    background: var(--surface-glass);
    backdrop-filter: var(--glass-blur) var(--glass-saturate);
    -webkit-backdrop-filter: var(--glass-blur) var(--glass-saturate);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg), var(--shadow-inset);
    transition: all var(--transition-base);
}

.glass-card:hover {
    border-color: var(--border-glass-hover);
    box-shadow: var(--shadow-xl), var(--shadow-inset);
}

.glass-card-strong {
    background: var(--surface-glass-strong);
}

/* ─────────────── Sidebar Navigation ─────────────── */

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--surface-glass-strong);
    backdrop-filter: var(--glass-blur-strong) var(--glass-saturate);
    -webkit-backdrop-filter: var(--glass-blur-strong) var(--glass-saturate);
    border-right: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    z-index: var(--z-dropdown);
    transition: transform var(--transition-base);
}

.sidebar-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--border-glass);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.sidebar-logo-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    box-shadow: var(--shadow-glow-primary);
}

.sidebar-logo-text {
    font-size: var(--text-xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-4);
    overflow-y: auto;
}

.nav-section {
    margin-bottom: var(--space-6);
}

.nav-section-title {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    padding: 0 var(--space-3);
    margin-bottom: var(--space-2);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transform: scaleY(0);
    transition: transform var(--transition-fast);
}

.nav-item:hover {
    background: var(--surface-glass-light);
    color: var(--text-primary);
}

.nav-item.active {
    background: rgba(139, 92, 246, 0.15);
    color: var(--primary-400);
}

.nav-item.active::before {
    transform: scaleY(1);
}

.nav-item-icon {
    font-size: var(--text-lg);
    width: 24px;
    text-align: center;
}

.nav-item-badge {
    margin-left: auto;
    background: var(--gradient-primary);
    color: white;
    font-size: var(--text-xs);
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--border-glass);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.user-profile:hover {
    background: var(--surface-glass-light);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--border-glass-hover);
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-weight: 600;
    font-size: var(--text-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-status {
    font-size: var(--text-xs);
    color: var(--success);
    display: flex;
    align-items: center;
    gap: 4px;
}

.user-status::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
}

/* Mobile Sidebar */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-dropdown) - 1);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.sidebar-overlay.active {
    opacity: 1;
}

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay {
        display: block;
    }
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: var(--space-4);
    left: var(--space-4);
    z-index: calc(var(--z-dropdown) + 1);
    width: 44px;
    height: 44px;
    background: var(--surface-glass);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: var(--text-xl);
}

@media (max-width: 1024px) {
    .mobile-menu-toggle {
        display: flex;
    }
}

/* ─────────────── Page Header ─────────────── */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    background: var(--surface-glass);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-glass);
    position: sticky;
    top: 0;
    z-index: calc(var(--z-dropdown) - 1);
}

.page-title {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.page-title-icon {
    font-size: var(--text-2xl);
}

.page-title-text {
    font-size: var(--text-xl);
    font-weight: 700;
}

.page-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* ─────────────── Theme Toggle ─────────────── */

.theme-toggle {
    width: 44px;
    height: 44px;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: var(--text-lg);
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background: var(--surface-glass-light);
    color: var(--gold-400);
    border-color: var(--border-glass-hover);
}

.theme-toggle .icon-sun {
    display: none;
}

.theme-toggle .icon-moon {
    display: block;
}

[data-theme="light"] .theme-toggle .icon-sun {
    display: block;
}

[data-theme="light"] .theme-toggle .icon-moon {
    display: none;
}

/* ─────────────── Utilities ─────────────── */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-cyan {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-gold {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-1 {
    gap: var(--space-1);
}

.gap-2 {
    gap: var(--space-2);
}

.gap-3 {
    gap: var(--space-3);
}

.gap-4 {
    gap: var(--space-4);
}

.gap-6 {
    gap: var(--space-6);
}

.w-full {
    width: 100%;
}

.h-full {
    height: 100%;
}

.hidden {
    display: none !important;
}

.invisible {
    visibility: hidden;
}

.overflow-hidden {
    overflow: hidden;
}

.overflow-auto {
    overflow: auto;
}

.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.rounded-full {
    border-radius: var(--radius-full);
}

.truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}