/* ============================================================
   BASE.CSS — Reset, Typography, Global Styles
   ZaidAsim.com Premium Portfolio
   ============================================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  hanging-punctuation: first last;
  color-scheme: dark;
}

[data-theme="light"] html,
html[data-theme="light"] {
  color-scheme: light;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  background-image: var(--gradient-bg-mesh);
  background-attachment: fixed;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

/* ── Selection Colors ───────────────────────────────────── */
::selection {
  background: rgba(139, 0, 255, 0.35);
  color: #FFFFFF;
}

::-moz-selection {
  background: rgba(139, 0, 255, 0.35);
  color: #FFFFFF;
}

[data-theme="light"] ::selection {
  background: rgba(109, 40, 217, 0.25);
  color: #0F172A;
}

/* ── Focus Styles ───────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-accent-purple);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

:focus:not(:focus-visible) {
  outline: none;
}

/* ── Custom Scrollbar ───────────────────────────────────── */
::-webkit-scrollbar {
  width: var(--scrollbar-width);
  height: var(--scrollbar-width);
}

::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
  border-left: 1px solid var(--color-border);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-accent-blue), var(--color-accent-purple), var(--color-accent-magenta));
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg-primary);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--color-accent-purple), var(--color-accent-magenta));
}

/* Firefox */
html {
  scrollbar-width: thin;
  scrollbar-color: var(--color-accent-purple) var(--color-bg-primary);
}


/* ── Typography ─────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
  text-wrap: balance;
}

h1 {
  font-size: var(--font-size-hero);
  font-weight: var(--font-weight-black);
  letter-spacing: -0.04em;
}

h2 {
  font-size: var(--font-size-section);
  font-weight: var(--font-weight-extrabold);
}

h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
}

h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

h5 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

h6 {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
}

p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  max-width: 70ch;
  text-wrap: pretty;
}

/* ── Gradient Text Utility ──────────────────────────────── */
.gradient-text,
.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

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

/* ── Links ──────────────────────────────────────────────── */
a {
  color: var(--color-text-link);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-smooth);
}

a:hover {
  color: var(--color-text-link-hover);
}

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

/* ── Images & Media ─────────────────────────────────────── */
img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

img {
  image-rendering: auto;
}

/* ── Form Elements ──────────────────────────────────────── */
input, button, textarea, select {
  font: inherit;
  color: inherit;
}

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

textarea {
  resize: vertical;
}

/* ── Table ──────────────────────────────────────────────── */
table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* ── Misc ───────────────────────────────────────────────── */
hr {
  border: none;
  height: 1px;
  background: var(--color-border);
  margin: var(--space-8) 0;
}

strong, b {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

em, i {
  font-style: italic;
}

code, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-bg-tertiary);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

pre {
  font-family: var(--font-mono);
  background: var(--color-bg-secondary);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow-x: auto;
  tab-size: 2;
}

pre code {
  background: none;
  padding: 0;
  border: none;
  font-size: var(--font-size-sm);
}

blockquote {
  border-left: 3px solid var(--color-accent-purple);
  padding-left: var(--space-4);
  margin-left: 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

/* ── Utility Classes ────────────────────────────────────── */
.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;
}

.no-scroll {
  overflow: hidden;
}

.mono {
  font-family: var(--font-mono);
}

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

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

/* ── Print Styles ───────────────────────────────────────── */
@media print {
  body {
    background: #fff;
    color: #000;
  }
  
  .nav,
  .hud,
  .scroll-progress,
  .custom-cursor {
    display: none !important;
  }
}