/* ========================================
   Base Styles & Reset
   ======================================== */

/* Box Sizing */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* Reset Margins & Padding */
* {
    margin: 0;
    padding: 0;
}

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

/* Body */
body {
    font-family: var(--font-primary);
    font-size: var(--fs-base);
    font-weight: var(--fw-regular);
    line-height: var(--lh-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* Remove List Styles */
ul,
ol {
    list-style: none;
}

/* Links */
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

/* Buttons */
button {
    font-family: inherit;
    font-size: inherit;
    background: none;
    border: none;
    cursor: pointer;
    color: inherit;
}

/* Inputs */
input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: transparent;
    border: none;
    outline: none;
}

/* Selection */
::selection {
    background-color: var(--accent-primary);
    color: var(--text-inverse);
}

/* ========================================
   Typography
   ======================================== */

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

h1 {
    font-size: var(--fs-5xl);
}

h2 {
    font-size: var(--fs-4xl);
}

h3 {
    font-size: var(--fs-3xl);
}

h4 {
    font-size: var(--fs-2xl);
}

h5 {
    font-size: var(--fs-xl);
}

h6 {
    font-size: var(--fs-lg);
}

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

strong,
b {
    font-weight: var(--fw-semibold);
}

/* ========================================
   Container
   ======================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

/* ========================================
   Section
   ======================================== */

.section {
    padding-block: var(--section-padding);
}

.section__header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section__tag {
    display: inline-block;
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

.section__title {
    font-size: var(--fs-3xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Page Header
   ======================================== */

.page-header {
    padding-top: calc(var(--header-height) + var(--space-3xl));
    padding-bottom: var(--space-3xl);
    text-align: center;
    background: var(--gradient-radial);
    position: relative;
    overflow: hidden;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

.page-header__title {
    font-size: var(--fs-4xl);
    margin-bottom: var(--space-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header__subtitle {
    font-size: var(--fs-lg);
    color: var(--text-secondary);
}

/* ========================================
   Glass Card
   ======================================== */

.glass-card {
    background: var(--surface-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: transform var(--transition-base),
        box-shadow var(--transition-base),
        border-color var(--transition-base);
}

.glass-card:hover {
    transform: translateY(-4px);
    border-color: rgba(var(--accent-primary-rgb), 0.3);
    box-shadow: var(--shadow-glow) rgba(var(--accent-primary-rgb), 0.15);
}

/* ========================================
   Utility Classes
   ======================================== */

/* Text Colors */
.text-primary {
    color: var(--text-primary);
}

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

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

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

/* Display */
.hidden {
    display: none;
}

.block {
    display: block;
}

.flex {
    display: flex;
}

.grid {
    display: grid;
}

/* Flex utilities */
.items-center {
    align-items: center;
}

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

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

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

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

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

/* Spacing */
.mt-md {
    margin-top: var(--space-md);
}

.mt-lg {
    margin-top: var(--space-lg);
}

.mb-md {
    margin-bottom: var(--space-md);
}

.mb-lg {
    margin-bottom: var(--space-lg);
}