/* ============================================================
   DMMain.css — DM Portfolio Design System
   Global tokens, reset, utilities, typography
   ============================================================ */

/* ── Google Fonts ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

/* ── Design Tokens ───────────────────────────────────────── */
:root {
  /* Palette — Dark (default) */
  --dm-bg:          #080810;
  --dm-bg-2:        #0f0f1a;
  --dm-surface:     #14142a;
  --dm-card:        #1a1a2e;
  --dm-card-hover:  #1f1f38;
  --dm-border:      rgba(124, 58, 237, 0.15);
  --dm-border-2:    rgba(255,255,255,0.06);

  /* Text */
  --dm-text:        #f0f0ff;
  --dm-text-2:      #a0a0c0;
  --dm-text-3:      #606080;

  /* Accent */
  --dm-accent:      #7c3aed;
  --dm-accent-2:    #a855f7;
  --dm-accent-3:    #3b82f6;
  --dm-accent-glow: rgba(124, 58, 237, 0.35);

  /* Gradient */
  --dm-grad-1:      linear-gradient(135deg, #7c3aed 0%, #3b82f6 100%);
  --dm-grad-2:      linear-gradient(135deg, #a855f7 0%, #ec4899 100%);
  --dm-grad-card:   linear-gradient(160deg, rgba(124,58,237,0.08) 0%, rgba(59,130,246,0.05) 100%);

  /* Glass */
  --dm-glass-bg:    rgba(20, 20, 42, 0.75);
  --dm-glass-blur:  20px;
  --dm-glass-border: rgba(124,58,237,0.2);

  /* Shadows */
  --dm-shadow-sm:   0 2px 8px rgba(0,0,0,0.4);
  --dm-shadow-md:   0 8px 32px rgba(0,0,0,0.5);
  --dm-shadow-lg:   0 20px 60px rgba(0,0,0,0.6);
  --dm-shadow-glow: 0 0 40px rgba(124,58,237,0.25);

  /* Spacing */
  --dm-space-xs:  4px;
  --dm-space-sm:  8px;
  --dm-space-md:  16px;
  --dm-space-lg:  24px;
  --dm-space-xl:  40px;
  --dm-space-2xl: 64px;
  --dm-space-3xl: 96px;

  /* Radius */
  --dm-radius-sm: 8px;
  --dm-radius-md: 12px;
  --dm-radius-lg: 20px;
  --dm-radius-xl: 28px;
  --dm-radius-full: 9999px;

  /* Typography */
  --dm-font:        'Outfit', system-ui, sans-serif;
  --dm-fs-xs:   0.75rem;
  --dm-fs-sm:   0.875rem;
  --dm-fs-base: 1rem;
  --dm-fs-md:   1.125rem;
  --dm-fs-lg:   1.375rem;
  --dm-fs-xl:   1.75rem;
  --dm-fs-2xl:  2.25rem;
  --dm-fs-3xl:  3rem;
  --dm-fs-4xl:  4rem;
  --dm-fs-hero: clamp(3rem, 8vw, 7rem);

  /* Transition */
  --dm-ease:        cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --dm-ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dm-dur-fast:    180ms;
  --dm-dur-base:    300ms;
  --dm-dur-slow:    500ms;

  /* Layout */
  --dm-container: 1320px;
  --dm-header-h:  72px;
}

/* ── Light Mode Tokens ───────────────────────────────────── */
[data-theme="light"] {
  --dm-bg:          #f4f4ff;
  --dm-bg-2:        #eaeaf8;
  --dm-surface:     #ffffff;
  --dm-card:        #fafaff;
  --dm-card-hover:  #f0f0fe;
  --dm-border:      rgba(124,58,237,0.12);
  --dm-border-2:    rgba(0,0,0,0.07);

  --dm-text:        #1a1a2e;
  --dm-text-2:      #4a4a6a;
  --dm-text-3:      #8888aa;

  --dm-glass-bg:    rgba(255,255,255,0.8);
  --dm-glass-blur:  16px;
  --dm-glass-border: rgba(124,58,237,0.15);

  --dm-shadow-sm:   0 2px 8px rgba(0,0,0,0.07);
  --dm-shadow-md:   0 8px 32px rgba(0,0,0,0.1);
  --dm-shadow-lg:   0 20px 60px rgba(0,0,0,0.15);
  --dm-shadow-glow: 0 0 40px rgba(124,58,237,0.15);

  --dm-grad-card:   linear-gradient(160deg, rgba(124,58,237,0.05) 0%, rgba(59,130,246,0.03) 100%);
}

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

html {
  scroll-behavior: auto; /* Lenis handles this */
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--dm-font);
  background-color: var(--dm-bg);
  color: var(--dm-text);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--dm-dur-slow) var(--dm-ease),
              color var(--dm-dur-slow) var(--dm-ease);
}

body.dm-loading {
  overflow: hidden;
}

img, video, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: var(--dm-font);
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: var(--dm-font);
}

/* ── Loading Screen ──────────────────────────────────────── */
#dm-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--dm-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--dm-space-md);
}

.dm-loader__logo {
  font-size: var(--dm-fs-xl);
  font-weight: 800;
  background: var(--dm-grad-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}

.dm-loader__bar {
  width: 200px;
  height: 2px;
  background: var(--dm-border-2);
  border-radius: var(--dm-radius-full);
  overflow: hidden;
}

.dm-loader__fill {
  height: 100%;
  width: 0%;
  background: var(--dm-grad-1);
  border-radius: var(--dm-radius-full);
  transition: width 0.1s linear;
}

.dm-loader__count {
  font-size: var(--dm-fs-sm);
  color: var(--dm-text-3);
  font-weight: 500;
  letter-spacing: 2px;
}

/* ── Container ───────────────────────────────────────────── */
.dm-container {
  width: 100%;
  max-width: var(--dm-container);
  margin: 0 auto;
  padding: 0 var(--dm-space-xl);
}

@media (max-width: 768px) {
  .dm-container { padding: 0 var(--dm-space-md); }
}

/* ── Typography ──────────────────────────────────────────── */
.dm-h1 { font-size: var(--dm-fs-3xl); font-weight: 800; line-height: 1.1; letter-spacing: -1.5px; }
.dm-h2 { font-size: var(--dm-fs-2xl); font-weight: 700; line-height: 1.2; letter-spacing: -1px; }
.dm-h3 { font-size: var(--dm-fs-xl);  font-weight: 600; line-height: 1.3; }
.dm-h4 { font-size: var(--dm-fs-lg);  font-weight: 600; }
.dm-p  { font-size: var(--dm-fs-base); color: var(--dm-text-2); line-height: 1.7; }
.dm-caption { font-size: var(--dm-fs-sm); color: var(--dm-text-3); }

.dm-gradient-text {
  background: var(--dm-grad-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dm-gradient-text-2 {
  background: var(--dm-grad-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Buttons ─────────────────────────────────────────────── */
.dm-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--dm-space-sm);
  padding: 12px 28px;
  border-radius: var(--dm-radius-full);
  font-size: var(--dm-fs-sm);
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: all var(--dm-dur-base) var(--dm-ease);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.dm-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: white;
  opacity: 0;
  transition: opacity var(--dm-dur-fast);
}

.dm-btn:hover::after { opacity: 0.06; }
.dm-btn:active::after { opacity: 0.12; }

.dm-btn-primary {
  background: var(--dm-grad-1);
  color: #fff;
  box-shadow: 0 4px 20px var(--dm-accent-glow);
}
.dm-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--dm-accent-glow);
}
.dm-btn-primary:active { transform: translateY(0); }

.dm-btn-ghost {
  background: transparent;
  color: var(--dm-text);
  border: 1px solid var(--dm-border-2);
}
.dm-btn-ghost:hover {
  border-color: var(--dm-accent);
  color: var(--dm-accent-2);
  background: rgba(124,58,237,0.06);
}

.dm-btn-sm {
  padding: 8px 18px;
  font-size: var(--dm-fs-xs);
}

.dm-btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--dm-radius-md);
}

/* ── Badge ───────────────────────────────────────────────── */
.dm-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: var(--dm-radius-full);
  font-size: var(--dm-fs-xs);
  font-weight: 600;
  background: rgba(124,58,237,0.15);
  color: var(--dm-accent-2);
  border: 1px solid rgba(124,58,237,0.2);
}

/* ── Section Layout ──────────────────────────────────────── */
.dm-section {
  padding: var(--dm-space-3xl) 0;
}

.dm-section__header {
  text-align: center;
  margin-bottom: var(--dm-space-2xl);
}

.dm-section__eyebrow {
  font-size: var(--dm-fs-xs);
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--dm-accent-2);
  margin-bottom: var(--dm-space-sm);
  display: block;
}

/* ── Divider ─────────────────────────────────────────────── */
.dm-divider {
  width: 60px;
  height: 3px;
  background: var(--dm-grad-1);
  border-radius: var(--dm-radius-full);
  margin: var(--dm-space-md) auto;
}

/* ── Grid ────────────────────────────────────────────────── */
.dm-grid {
  display: grid;
  gap: var(--dm-space-lg);
}
.dm-grid-3 { grid-template-columns: repeat(3, 1fr); }
.dm-grid-2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 1100px) {
  .dm-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .dm-grid-3, .dm-grid-2 { grid-template-columns: 1fr; }
}

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar        { width: 6px; }
::-webkit-scrollbar-track  { background: var(--dm-bg-2); }
::-webkit-scrollbar-thumb  { background: var(--dm-accent); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--dm-accent-2); }

/* ── Selection ───────────────────────────────────────────── */
::selection {
  background: rgba(124,58,237,0.3);
  color: var(--dm-text);
}

/* ── Noise Overlay ───────────────────────────────────────── */
.dm-noise::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
  opacity: 0.35;
}

/* ── Utility ─────────────────────────────────────────────── */
.dm-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;
}
.dm-flex   { display: flex; }
.dm-center { align-items: center; justify-content: center; }
.dm-gap-sm { gap: var(--dm-space-sm); }
.dm-gap-md { gap: var(--dm-space-md); }
.dm-gap-lg { gap: var(--dm-space-lg); }
.dm-mt-auto { margin-top: auto; }

/* ── Page Transition Curtain ─────────────────────────────── */
#dm-curtain {
  position: fixed;
  inset: 0;
  background: var(--dm-accent);
  z-index: 9000;
  transform: scaleY(0);
  transform-origin: bottom;
  pointer-events: none;
}

/* ── Ripple ──────────────────────────────────────────────── */
.dm-ripple {
  position: relative;
  overflow: hidden;
}
.dm-ripple-wave {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  transform: scale(0);
  animation: dmRipple 0.6s linear;
  pointer-events: none;
}
@keyframes dmRipple {
  to { transform: scale(4); opacity: 0; }
}

/* ── Tooltip ─────────────────────────────────────────────── */
[data-tooltip] {
  position: relative;
}
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--dm-card);
  color: var(--dm-text);
  padding: 6px 12px;
  border-radius: var(--dm-radius-sm);
  font-size: var(--dm-fs-xs);
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dm-dur-fast);
  border: 1px solid var(--dm-border-2);
  box-shadow: var(--dm-shadow-md);
  z-index: 100;
}
[data-tooltip]:hover::after { opacity: 1; }

/* ── Glow Orb ────────────────────────────────────────────── */
.dm-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  animation: dmOrbFloat 8s ease-in-out infinite;
}
.dm-orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(124,58,237,0.15) 0%, transparent 70%);
  top: -200px; right: -200px;
}
.dm-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%);
  bottom: -100px; left: -100px;
  animation-delay: -4s;
}
@keyframes dmOrbFloat {
  0%,100% { transform: translate(0,0) scale(1); }
  33%     { transform: translate(30px,-20px) scale(1.05); }
  66%     { transform: translate(-20px,30px) scale(0.95); }
}