/* ============================================
   PyPy — Modern Interview Booking System
   ============================================ */

:root {
    /* Colors — Dark tech theme */
    --color-bg: #0a0a0f;
    --color-bg-elevated: #12121a;
    --color-bg-card: #1a1a24;
    --color-bg-input: #0f0f14;
    
    --color-border: #2a2a3a;
    --color-border-focus: #4f46e5;
    
    --color-text: #e4e4e7;
    --color-text-muted: #71717a;
    --color-text-heading: #fafafa;
    
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-primary-glow: rgba(99, 102, 241, 0.15);
    
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    --color-accent: #22d3ee;
    --color-accent-2: #a78bfa;
    
    /* Typography */
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 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;
    
    /* Radii */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--color-primary-glow);
}

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

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

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(34, 211, 238, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-text-heading);
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* ============================================
   Navbar
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-heading);
    font-weight: 600;
    font-size: 1.25rem;
}

.brand-icon {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    color: var(--color-text);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-link-muted {
    color: var(--color-text-muted);
}

/* ============================================
   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-sans);
    font-size: 0.95rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: white;
    box-shadow: var(--shadow-sm), 0 0 20px var(--color-primary-glow);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md), 0 0 30px var(--color-primary-glow);
    color: white;
}

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

.btn-secondary:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-primary);
    color: var(--color-text);
}

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

.btn-ghost:hover {
    background: var(--color-bg-card);
    color: var(--color-text);
}

.btn-sm {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.875rem;
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
}

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

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

.form-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="url"],
input[type="date"],
input[type="time"],
textarea,
select {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-text);
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.2s;
}

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

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

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

.form-error-global {
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-error);
}

/* ============================================
   Auth Pages
   ============================================ */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
    padding-top: calc(60px + var(--space-xl));
}

.auth-card {
    width: 100%;
    max-width: 420px;
    padding: var(--space-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.auth-header h1 {
    margin-bottom: var(--space-sm);
}

.auth-header p {
    color: var(--color-text-muted);
}

.auth-footer {
    margin-top: var(--space-xl);
    text-align: center;
    color: var(--color-text-muted);
}

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

.card-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.card-title {
    font-size: 1.25rem;
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    padding-top: 60px;
    min-height: 100vh;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 25px 0;
    text-align: center;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
}

/* ============================================
   Dashboard Layout
   ============================================ */
.dashboard-body {
    display: flex;
    min-height: 100vh;
}

.dashboard-body::before {
    display: none;
}

.sidebar {
    width: 260px;
    background: var(--color-bg-elevated);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

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

.sidebar-nav {
    flex: 1;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    color: var(--color-text-muted);
    border-radius: var(--radius-md);
    transition: all 0.2s;
}

.sidebar-link:hover {
    color: var(--color-text);
    background: var(--color-bg-card);
}

.sidebar-link.active {
    color: var(--color-primary);
    background: var(--color-primary-glow);
}

.sidebar-icon {
    font-size: 1.1rem;
}

.sidebar-footer {
    padding: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    margin-bottom: var(--space-sm);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-avatar span {
    font-weight: 600;
    color: var(--color-primary);
}

.user-name {
    font-weight: 500;
    color: var(--color-text);
}

.user-profile-link {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.sidebar-link-logout {
    color: var(--color-text-muted);
}

.dashboard-main {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
    background: var(--color-bg);
}

.dashboard-header {
    padding: var(--space-xl) var(--space-2xl);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-bg-elevated);
}

.dashboard-title {
    font-size: 1.5rem;
}

.dashboard-content {
    padding: var(--space-2xl);
}

/* ============================================
   Alerts
   ============================================ */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--color-success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--color-error);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--color-warning);
}

/* ============================================
   Tables
   ============================================ */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

th {
    font-weight: 500;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

tr:hover td {
    background: var(--color-bg-elevated);
}

/* ============================================
   Status Badges
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-pending {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
}

.badge-confirmed {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
}

.badge-rejected {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-error);
}

.badge-completed {
    background: rgba(99, 102, 241, 0.15);
    color: var(--color-primary);
}

.badge-hired {
    background: rgba(34, 211, 238, 0.15);
    color: var(--color-accent);
}

/* ============================================
   Calendar & Slots
   ============================================ */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-xs);
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--color-bg-input);
    border: 1px solid transparent;
}

.calendar-day:hover:not(.calendar-day-disabled) {
    border-color: var(--color-primary);
}

.calendar-day.selected {
    background: var(--color-primary);
    color: white;
}

.calendar-day.has-slots {
    color: var(--color-success);
}

.calendar-day-disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--space-sm);
}

.time-slot {
    padding: var(--space-md);
    text-align: center;
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-mono);
}

.time-slot:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-glow);
}

.time-slot.selected {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* ============================================
   Empty States
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--space-3xl);
    color: var(--color-text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
}

.empty-state-title {
    font-size: 1.25rem;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .dashboard-main {
        margin-left: 0;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    
    .auth-card {
        padding: var(--space-xl);
    }
    
    .navbar-menu {
        gap: var(--space-md);
    }
}

.onetwodev {
    opacity: .4;
    cursor: pointer;
    border-bottom: none;
}

.onetwodev > img {
    padding-top: 10px;
    height: 34px;
}

.onetwodev:hover {
    cursor: pointer;
    opacity: 1;
}