/* ===================================
   BASE STYLES & RESET
   =================================== */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

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

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

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-4);
}

h1 {
    font-size: var(--font-size-3xl);
}

h2 {
    font-size: var(--font-size-2xl);
}

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

h4 {
    font-size: var(--font-size-lg);
}

h5 {
    font-size: var(--font-size-base);
}

h6 {
    font-size: var(--font-size-sm);
}

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

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

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

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

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

/* Buttons */
button {
    font-family: inherit;
    font-size: inherit;
    border: none;
    background: none;
    cursor: pointer;
    padding: 0;
}

/* Input & Form Elements */
input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
    border: none;
    background: none;
    outline: none;
}

/* Selection */
::selection {
    background-color: var(--color-primary-500);
    color: var(--color-text-primary);
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-md);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-700);
}

/* ===================================
   UTILITY CLASSES
   =================================== */

/* Display */
.d-none {
    display: none !important;
}

.d-block {
    display: block !important;
}

.d-flex {
    display: flex !important;
}

.d-grid {
    display: grid !important;
}

.d-inline-block {
    display: inline-block !important;
}

/* Flexbox */
.flex-row {
    flex-direction: row;
}

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

.flex-wrap {
    flex-wrap: wrap;
}

.flex-nowrap {
    flex-wrap: nowrap;
}

.justify-start {
    justify-content: flex-start;
}

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

.justify-end {
    justify-content: flex-end;
}

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

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

.align-start {
    align-items: flex-start;
}

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

.align-end {
    align-items: flex-end;
}

.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);
}

.gap-8 {
    gap: var(--space-8);
}

/* Text Alignment */
.text-left {
    text-align: left;
}

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

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

/* Font Weight */
.font-light {
    font-weight: var(--font-weight-light);
}

.font-normal {
    font-weight: var(--font-weight-normal);
}

.font-medium {
    font-weight: var(--font-weight-medium);
}

.font-semibold {
    font-weight: var(--font-weight-semibold);
}

.font-bold {
    font-weight: var(--font-weight-bold);
}

/* Text Size */
.text-xs {
    font-size: var(--font-size-xs);
}

.text-sm {
    font-size: var(--font-size-sm);
}

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

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

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

/* Colors */
.text-primary {
    color: var(--color-primary-400);
}

.text-accent {
    color: var(--color-accent-400);
}

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

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

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

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

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

/* Spacing - Margin */
.m-0 {
    margin: 0;
}

.m-auto {
    margin: auto;
}

.mt-2 {
    margin-top: var(--space-2);
}

.mt-4 {
    margin-top: var(--space-4);
}

.mb-2 {
    margin-bottom: var(--space-2);
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.ml-2 {
    margin-left: var(--space-2);
}

.ml-4 {
    margin-left: var(--space-4);
}

.mr-2 {
    margin-right: var(--space-2);
}

.mr-4 {
    margin-right: var(--space-4);
}

/* Spacing - Padding */
.p-0 {
    padding: 0;
}

.p-2 {
    padding: var(--space-2);
}

.p-4 {
    padding: var(--space-4);
}

.p-6 {
    padding: var(--space-6);
}

.px-2 {
    padding-left: var(--space-2);
    padding-right: var(--space-2);
}

.px-4 {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

.py-2 {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
}

.py-4 {
    padding-top: var(--space-4);
    padding-bottom: var(--space-4);
}

/* Width & Height */
.w-full {
    width: 100%;
}

.h-full {
    height: 100%;
}

.w-screen {
    width: 100vw;
}

.h-screen {
    height: 100vh;
}

/* Position */
.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.fixed {
    position: fixed;
}

.sticky {
    position: sticky;
}

/* Overflow */
.overflow-hidden {
    overflow: hidden;
}

.overflow-auto {
    overflow: auto;
}

.overflow-x-auto {
    overflow-x: auto;
}

.overflow-y-auto {
    overflow-y: auto;
}

/* Cursor */
.cursor-pointer {
    cursor: pointer;
}

.cursor-move {
    cursor: move;
}

.cursor-grab {
    cursor: grab;
}

.cursor-grabbing {
    cursor: grabbing;
}

.cursor-not-allowed {
    cursor: not-allowed;
}

/* Border Radius */
.rounded-sm {
    border-radius: var(--radius-sm);
}

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

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

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

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

/* Shadow */
.shadow-sm {
    box-shadow: var(--shadow-sm);
}

.shadow-md {
    box-shadow: var(--shadow-md);
}

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

.shadow-xl {
    box-shadow: var(--shadow-xl);
}

/* Opacity */
.opacity-0 {
    opacity: 0;
}

.opacity-50 {
    opacity: 0.5;
}

.opacity-100 {
    opacity: 1;
}

/* Transitions */
.transition {
    transition: all var(--transition-base);
}

.transition-fast {
    transition: all var(--transition-fast);
}

.transition-slow {
    transition: all var(--transition-slow);
}

/* User Select */
.select-none {
    user-select: none;
}

.select-text {
    user-select: text;
}

/* Pointer Events */
.pointer-events-none {
    pointer-events: none;
}

.pointer-events-auto {
    pointer-events: auto;
}