/* ==========================================================================
   KAHFIYA.COM // RESPONSIVE ARCHITECTURAL SHOWCASE (MOBILE & DESKTOP PERFECT)
   ========================================================================== */

:root {
  --bg-black: #000000;
  --text-white: #ffffff;
  --text-silver: #a1a1aa;
  --text-dim: #71717a;
  
  --accent-amber: #ff9900;
  --accent-green: #22c55e;
  
  --font-clean: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  background-color: var(--bg-black);
  color: var(--text-white);
  font-family: var(--font-clean);
  scroll-behavior: smooth;
  overflow-x: hidden;
  scrollbar-width: none;
}

html::-webkit-scrollbar {
  display: none;
}

body {
  min-height: 100vh;
  background-color: var(--bg-black);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* FIXED FULLSCREEN 3D WEBGL STAGE */
.canvas-stage {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  pointer-events: auto;
  cursor: grab;
  background: radial-gradient(circle at 50% 50%, #151820 0%, #000000 75%);
}

.canvas-stage.dragging {
  cursor: grabbing;
}

/* MINIMAL NAVIGATION */
.clean-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  z-index: 1000;
}

.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #fff;
}

.nav-brand span {
  color: var(--accent-amber);
}

.nav-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 4px 10px;
  border-radius: 6px;
  letter-spacing: 0.5px;
}

/* SCROLLYTELLING CONTAINER (500vh) */
.scrolly-container {
  position: relative;
  height: 500vh;
  z-index: 10;
  pointer-events: none;
}

.scrolly-caption {
  position: fixed;
  max-width: 480px;
  opacity: 0;
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
  z-index: 20;
}

.scrolly-caption.active {
  opacity: 1;
}

.cap-1 {
  top: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(15px);
  text-align: center;
  max-width: 700px;
  width: 90%;
}
.cap-1.active {
  transform: translateX(-50%) translateY(0);
}

.cap-2 {
  top: 50%;
  left: 6vw;
  transform: translateY(-50%) translateY(20px);
  text-align: left;
}
.cap-2.active {
  transform: translateY(-50%) translateY(0);
}

.cap-3 {
  top: 50%;
  right: 6vw;
  transform: translateY(-50%) translateY(20px);
  text-align: right;
}
.cap-3.active {
  transform: translateY(-50%) translateY(0);
}

.cap-4 {
  top: 50%;
  left: 6vw;
  transform: translateY(-50%) translateY(20px);
  text-align: left;
}
.cap-4.active {
  transform: translateY(-50%) translateY(0);
}

.cap-5 {
  top: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(15px);
  text-align: center;
  max-width: 700px;
  width: 90%;
}
.cap-5.active {
  transform: translateX(-50%) translateY(0);
}

/* Typography Hierarchy */
.caption-kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-amber);
  letter-spacing: 2px;
  margin-bottom: 6px;
}

.caption-headline {
  font-size: clamp(1.8rem, 3.8vw, 3.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 10px;
}

.gradient-text {
  background: linear-gradient(180deg, #ffffff 40%, #a1a1aa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.caption-sub {
  font-size: clamp(0.85rem, 1.3vw, 1.05rem);
  color: var(--text-silver);
  line-height: 1.45;
  font-weight: 400;
  max-width: 480px;
}

.cap-1 .caption-sub, .cap-5 .caption-sub {
  margin: 0 auto;
}

.scroll-cue {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-amber);
  letter-spacing: 1px;
}

/* FLOATING MINIMAL CONTROLLER BAR */
.bottom-studio-bar {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(18, 18, 20, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: 40px;
  padding: 8px 24px;
  z-index: 500;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.8);
  max-width: 92vw;
}

.studio-inner {
  display: flex;
  align-items: center;
  gap: 16px;
}

.studio-input-wrap, .studio-palette-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.studio-input-wrap label, .studio-palette-wrap label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-dim);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.input-action-box {
  display: flex;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  padding: 3px 5px 3px 12px;
}

.input-action-box input {
  background: transparent;
  border: none;
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  width: 140px;
}

.input-action-box input:focus {
  outline: none;
}

.input-action-box button {
  background: var(--accent-amber);
  border: none;
  color: #000;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 14px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.input-action-box button:hover {
  opacity: 0.9;
}

.studio-sep {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, 0.1);
}

.palette-dots {
  display: flex;
  gap: 6px;
}

.p-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--c);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.2s;
}

.p-dot.active {
  border-color: #fff;
  transform: scale(1.25);
  box-shadow: 0 0 10px var(--c);
}

/* MINIMAL FOOTER */
.clean-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 4px 24px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  z-index: 100;
  pointer-events: none;
}

/* MOBILE & TABLET OPTIMIZATIONS */
@media (max-width: 860px) {
  .bottom-studio-bar {
    width: 90%;
    bottom: 12px;
    border-radius: 20px;
    padding: 8px 14px;
  }
  
  .studio-inner {
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
  }
  
  .studio-sep {
    display: none;
  }
  
  .input-action-box input {
    width: 110px;
  }

  .caption-headline {
    font-size: clamp(1.6rem, 5.5vw, 2.2rem);
  }

  .caption-sub {
    font-size: 0.85rem;
  }

  /* Position side captions at top on mobile so 3D model is never blocked */
  .cap-2, .cap-3, .cap-4 {
    top: 75px !important;
    left: 5% !important;
    right: 5% !important;
    width: 90% !important;
    max-width: none !important;
    text-align: center !important;
    transform: translateY(15px) !important;
  }

  .cap-2.active, .cap-3.active, .cap-4.active {
    transform: translateY(0) !important;
  }
}