/* ========================================================================
   Cloth Purchase – Base Styles
   A sophisticated, modern, clean and responsive foundation
   ======================================================================== */

/* ========================================================================
   1. Root Variables
   ======================================================================== */
:root {
  /* Color Palette – neutral, fashion-forward */
  --color-background: #f6f6f7;
  --color-surface: #ffffff;
  --color-surface-muted: #f1f1f3;

  --color-text: #1f1f23;
  --color-text-muted: #6b6b76;
  --color-border-subtle: #e0e0e6;

  /* Accent / Brand tones (subtle, polished) */
  --color-primary: #1f7a8c;
  --color-primary-soft: #e1f0f4;
  --color-primary-strong: #155868;

  --color-success: #2c7a4b;
  --color-success-soft: #e2f3e9;

  --color-warning: #b7791f;
  --color-warning-soft: #fff4da;

  --color-danger: #c53030;
  --color-danger-soft: #fde2e2;

  --color-focus-ring: #1f7a8c;

  /* Neutral Grays */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2933;
  --gray-900: #111827;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Playfair Display", "Times New Roman", serif;
  --font-mono: Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-md: 1rem;      /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem;  /* 36px */

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing scale (0–96px) */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-7: 1.75rem;  /* 28px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */

  /* Radius */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 999px;

  /* Shadows – soft and subtle */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 6px 18px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 12px 30px rgba(15, 23, 42, 0.14);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 180ms ease-out;
  --transition-slow: 240ms ease-out;

  /* Layout */
  --layout-max-width: 1200px;
  --layout-gutter: 1rem;
}

/* ========================================================================
   2. Reset / Normalize
   ======================================================================== */

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

html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
  margin: 0;
  padding: 0;
  border: 0;
  font: inherit;
  vertical-align: baseline;
}

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  display: block;
}

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  line-height: 1;
}

ol,
ul {
  list-style: none;
}

blockquote,
q {
  quotes: none;
}

blockquote::before,
blockquote::after,
q::before,
q::after {
  content: '';
}

button,
input,
select,
textarea {
  margin: 0;
  font: inherit;
  color: inherit;
}

img,
svg,
video,
canvas,
audio,
iframe,
embed,
object {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* ========================================================================
   3. Base Styles
   ======================================================================== */

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  background-color: var(--color-background);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-4xl);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

h2 {
  font-size: var(--font-size-3xl);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-3);
}

h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

h5 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2);
}

h6 {
  font-size: var(--font-size-md);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
}

p {
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
  color: var(--color-text);
}

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

strong,
b {
  font-weight: 600;
}

em,
i {
  font-style: italic;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  text-underline-offset: 0.18em;
  transition: color var(--transition-normal);
}

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

a:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-8) 0;
}

/* ========================================================================
   4. Accessibility & Motion
   ======================================================================== */

:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 3px;
}

:focus {
  outline: none;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

/* ========================================================================
   5. Utilities
   ======================================================================== */

/* Layout */

.container {
  width: 100%;
  max-width: var(--layout-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--layout-gutter);
  padding-right: var(--layout-gutter);
}

.section {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.section--tight {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

/* Flex helpers */

.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

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

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

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

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

/* Grid helpers */

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-6);
}

@media (max-width: 960px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Spacing utilities (margin-bottom only for vertical rhythm) */

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--space-1) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-6 { margin-bottom: var(--space-6) !important; }
.mb-8 { margin-bottom: var(--space-8) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-8 { margin-top: var(--space-8) !important; }

/* Text utilities */

.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-muted { color: var(--color-text-muted) !important; }

/* Screen reader only */

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

/* ========================================================================
   6. Components
   ======================================================================== */

/* Buttons */

.button,
button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-xs);
  transition:
    background-color var(--transition-normal),
    color var(--transition-normal),
    border-color var(--transition-normal),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.button:hover,
button:hover,
input[type="button"]:hover,
input[type="submit"]:hover,
input[type="reset"]:hover {
  background-color: var(--color-primary-strong);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.button:active,
button:active,
input[type="button"]:active,
input[type="submit"]:active,
input[type="reset"]:active {
  transform: translateY(0);
  box-shadow: var(--shadow-xs);
}

.button:disabled,
button:disabled,
input[type="button"]:disabled,
input[type="submit"]:disabled,
input[type="reset"]:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.button--outline {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border-subtle);
  box-shadow: none;
}

.button--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-strong);
}

.button--ghost {
  background-color: transparent;
  color: var(--color-text);
  border-color: transparent;
  box-shadow: none;
}

.button--ghost:hover {
  background-color: var(--color-surface-muted);
}

/* Inputs & Form Controls */

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="search"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-subtle);
  background-color: var(--color-surface);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  transition:
    border-color var(--transition-normal),
    box-shadow var(--transition-normal),
    background-color var(--transition-normal);
}

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

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  border-color: var(--color-focus-ring);
  box-shadow: 0 0 0 1px var(--color-focus-ring);
  outline: none;
}

input:disabled,
select:disabled,
textarea:disabled {
  background-color: var(--gray-100);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

label {
  display: inline-block;
  margin-bottom: var(--space-1);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
}

/* Cards – product tiles, content blocks */

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.18);
  padding: var(--space-4);
  box-shadow: var(--shadow-xs);
  transition:
    box-shadow var(--transition-normal),
    transform var(--transition-normal),
    border-color var(--transition-normal);
}

.card--hoverable:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(148, 163, 184, 0.4);
}

.card-header {
  margin-bottom: var(--space-3);
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.card-body {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

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

/* Badges – e.g., new, sale, seasonal */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

.badge--primary {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-strong);
  border-color: transparent;
}

.badge--neutral {
  background-color: var(--gray-100);
  color: var(--gray-700);
}

.badge--outline {
  background-color: transparent;
  border-color: var(--color-border-subtle);
  color: var(--gray-700);
}

/* Chips / Filter pills (for sizes, categories) */

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  background-color: var(--color-surface);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background-color var(--transition-normal),
    color var(--transition-normal),
    border-color var(--transition-normal);
}

.chip--active {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

.chip:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

/* Toast / Alert (feedback for cart, wishlist, etc.) */

.alert {
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.alert--success {
  background-color: var(--color-success-soft);
  color: var(--color-success);
}

.alert--warning {
  background-color: var(--color-warning-soft);
  color: var(--color-warning);
}

.alert--danger {
  background-color: var(--color-danger-soft);
  color: var(--color-danger);
}

/* ========================================================================
   7. Responsive Typography Tweaks
   ======================================================================== */

@media (max-width: 768px) {
  h1 { font-size: 1.9rem; }
  h2 { font-size: 1.6rem; }
  h3 { font-size: 1.4rem; }
}

@media (min-width: 1200px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2.0rem; }
}