/* main.css - Core Layout, Typography & Animations */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

*, *::before, *::after { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    height: 100%;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.06) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(99, 102, 241, 0.05) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(139, 92, 246, 0.03) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
    height: 100%;
    width: 100%;
    line-height: 1.5;
}

[data-theme="dark"] body {
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(99, 102, 241, 0.08) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(139, 92, 246, 0.05) 0px, transparent 50%);
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* App Shell Layout */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    position: relative;
}

.main-content-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
    position: relative;
    height: 100vh;
}

.main-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 2rem;
    scroll-behavior: smooth;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
    animation: fadeInPage 0.35s ease-out;
}

/* Typography */
h1 { 
    font-size: 1.75rem; 
    font-weight: 700; 
    letter-spacing: -0.025em; 
    color: var(--text-primary);
    line-height: 1.25;
}

h2 { 
    font-size: 1.25rem; 
    font-weight: 600; 
    letter-spacing: -0.015em; 
    color: var(--text-primary);
    line-height: 1.3;
}

h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

p { 
    color: var(--text-secondary);
    line-height: 1.6; 
}

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

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

/* Grid Layouts */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.responsive-grid-2 {
    display: grid; 
    grid-template-columns: 2fr 1fr; 
    gap: 1.5rem; 
}

.responsive-grid-equal {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* Forms & Inputs */
.input-group { 
    margin-bottom: 1.25rem; 
    position: relative;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

input, select, textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-primary);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
    font-family: inherit;
    font-size: 0.9rem;
}

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

input:focus, select:focus, textarea:focus { 
    border-color: var(--brand-primary); 
    box-shadow: 0 0 0 3px var(--brand-glow); 
    background: var(--bg-surface-elevated);
}

input:disabled, select:disabled, textarea:disabled {
    background: var(--bg-muted);
    opacity: 0.7;
    cursor: not-allowed;
}

/* Keyframe Animations */
@keyframes fadeInPage {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes pulseGlow {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

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

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.animate-fade-in { animation: fadeInPage 0.3s ease-out; }
.animate-slide-up { animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
.animate-scale-in { animation: scaleIn 0.25s cubic-bezier(0.16, 1, 0.3, 1); }

/* Shimmer Loading Skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--bg-muted) 25%, var(--border-color) 50%, var(--bg-muted) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-xs);
}

/* Mobile Bottom Navigation Bar */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--mobile-nav-height);
    background: var(--bg-glass-strong);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--border-color);
    z-index: 90;
    padding: 0 0.5rem;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05);
}

.mobile-bottom-nav ul {
    list-style: none;
    display: flex;
    justify-content: space-around;
    align-items: center;
    height: 100%;
    padding: 0;
    margin: 0;
}

.mobile-bottom-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 600;
    gap: 3px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.mobile-bottom-nav a i {
    width: 20px;
    height: 20px;
}

.mobile-bottom-nav a.active {
    color: var(--brand-primary);
    background: rgba(59, 130, 246, 0.1);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .responsive-grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .main-content { 
        padding: 1rem 1rem calc(var(--mobile-nav-height) + 1.5rem) 1rem; 
        gap: 1.25rem;
    }
    h1 { font-size: 1.45rem; }
    h2 { font-size: 1.15rem; }
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 0.75rem;
    }
    .mobile-bottom-nav {
        display: block;
    }
}

/* Print Styles */
@media print {
    body * { visibility: hidden; }
    #printable-card-container, #printable-card-container *,
    #print-canvas, #print-canvas * { visibility: visible; }
    #printable-card-container, #print-canvas {
        position: absolute; 
        left: 0; 
        top: 0; 
        width: 100%; 
        display: flex !important; 
        justify-content: center; 
        align-items: center; 
        background: #fff !important;
    }
}