/* ========================================
   DnD-Hub - BASE STYLES
   Reset, typography, and foundational styles
   ======================================== */

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

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

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-darkest);
    min-height: 100vh;
    overflow-x: hidden;
}

/* === Background Pattern === */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(123, 75, 148, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(201, 162, 39, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(58, 123, 199, 0.04) 0%, transparent 60%),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0L30 60M0 30L60 30' stroke='%23c9a227' stroke-opacity='0.03' fill='none'/%3E%3C/svg%3E");
    background-color: var(--bg-darkest);
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: var(--line-height-tight);
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

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

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

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

/* === Lists === */
ul, ol {
    list-style: none;
}

/* === Images === */
img, svg {
    display: block;
    max-width: 100%;
    height: auto;
}

/* === Form Elements === */
input, button, textarea, select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

input:focus, textarea:focus, select:focus, button:focus {
    outline: none;
}

/* === Scrollbar Styling === */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-lighter);
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-darker);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-dark);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--bg-lighter) var(--bg-darker);
}

/* === Selection === */
::selection {
    background-color: var(--color-primary);
    color: var(--bg-darkest);
}

/* === Utility Classes === */
.hidden {
    display: none !important;
}

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

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--text-accent); }

.font-display { font-family: var(--font-display); }
.font-body { font-family: var(--font-body); }
.font-ui { font-family: var(--font-ui); }

/* === Loading Screen === */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-darkest);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loading);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.fade-out {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
}

.loading-logo {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--space-xl);
    color: var(--color-primary);
}

.d20-icon.spinning {
    animation: spin 3s linear infinite, pulse 2s ease-in-out infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.7; filter: drop-shadow(0 0 5px var(--color-primary)); }
    50% { opacity: 1; filter: drop-shadow(0 0 20px var(--color-primary)); }
}

.loading-text {
    font-family: var(--font-display);
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    animation: textGlow 2s ease-in-out infinite;
}

@keyframes textGlow {
    0%, 100% { text-shadow: 0 0 5px var(--color-primary-glow); }
    50% { text-shadow: 0 0 20px var(--color-primary-glow), 0 0 40px var(--color-primary-glow); }
}

.loading-bar {
    width: 200px;
    height: 4px;
    background: var(--bg-light);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: 0 auto;
}

.loading-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary), var(--color-primary-light));
    border-radius: var(--radius-full);
    animation: loadingProgress 1.5s ease-in-out infinite;
}

@keyframes loadingProgress {
    0% { width: 0%; transform: translateX(0); }
    50% { width: 70%; }
    100% { width: 100%; transform: translateX(0); }
}

/* === Animations === */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { 
        opacity: 0; 
        transform: translateY(20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes fadeInDown {
    from { 
        opacity: 0; 
        transform: translateY(-20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes scaleIn {
    from { 
        opacity: 0; 
        transform: scale(0.9); 
    }
    to { 
        opacity: 1; 
        transform: scale(1); 
    }
}

@keyframes slideInRight {
    from { 
        opacity: 0; 
        transform: translateX(30px); 
    }
    to { 
        opacity: 1; 
        transform: translateX(0); 
    }
}

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

.animate-fadeIn { animation: fadeIn 0.5s ease forwards; }
.animate-fadeInUp { animation: fadeInUp 0.5s ease forwards; }
.animate-fadeInDown { animation: fadeInDown 0.5s ease forwards; }
.animate-scaleIn { animation: scaleIn 0.4s ease forwards; }

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }