/* ==========================================================================
   PLATA STUDIO - PRODUCTION STYLESHEET
   Default: Sandstone Dark + Crimson Red Button (#D9381E)
   Toggle: Sandstone Light + Crimson Red Button (#D9381E)
   ========================================================================== */

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

/* ⭐ Default Theme: Sandstone Dark */
:root {
  --bg: #1B1715;
  --panel-bg: rgba(232, 227, 217, 0.03);
  --border: rgba(232, 227, 217, 0.14);
  --border-hover: rgba(232, 227, 217, 0.4);
  --text-primary: #E8E3D9;
  --text-secondary: #A19790;
  --text-tertiary: #5E5651;
  --tag-color: #A19790;
  --domain-color: #A19790;
  --btn-bg: #D9381E; /* Solid Crimson Red */
  --btn-text: #FFFFFF;
  --btn-sec-bg: rgba(232, 227, 217, 0.05);
  --btn-sec-text: #E8E3D9;
  --toggle-active-bg: #E8E3D9;
  --toggle-active-text: #1B1715;
  --toggle-inactive-text: #A19790;
  --font-heading: 'Syne', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius-btn: 0px; /* Solid sharp corner - no radius */
  --transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ⭐ Light Theme: Sandstone Light */
[data-theme="light"] {
  --bg: #E8E3D9;
  --panel-bg: rgba(42, 36, 33, 0.04);
  --border: rgba(42, 36, 33, 0.16);
  --border-hover: rgba(42, 36, 33, 0.45);
  --text-primary: #2A2421;
  --text-secondary: #6B625C;
  --text-tertiary: #A19790;
  --tag-color: #6B625C;
  --domain-color: #6B625C;
  --btn-bg: #D9381E; /* Solid Crimson Red */
  --btn-text: #FFFFFF;
  --btn-sec-bg: rgba(42, 36, 33, 0.04);
  --btn-sec-text: #2A2421;
  --toggle-active-bg: #2A2421;
  --toggle-active-text: #E8E3D9;
  --toggle-inactive-text: #6B625C;
}

/* Reset & Strict Non-Scrollable Viewport */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  transition: background-color 0.4s ease, color 0.4s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Minimalist Top Bar with Theme Switch */
.studio-top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 24px 32px;
  max-width: 1100px;
  margin: 0 auto;
  z-index: 50;
  pointer-events: none;
}

/* Minimalist Light / Dark Theme Switcher */
.theme-switcher {
  display: inline-flex;
  align-items: center;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  padding: 3px;
  border-radius: 0px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  pointer-events: auto;
  transition: var(--transition);
}

.theme-switch-btn {
  background: transparent;
  border: none;
  color: var(--toggle-inactive-text);
  font-family: var(--font-body);
  font-size: 0.76rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 0px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.theme-switch-btn svg {
  width: 12px;
  height: 12px;
  fill: currentColor;
}

.theme-switch-btn:hover {
  color: var(--text-primary);
}

.theme-switch-btn.active {
  background: var(--toggle-active-bg);
  color: var(--toggle-active-text);
  font-weight: 700;
}

/* Main Viewport Container */
.studio-viewport {
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 40px 32px 40px 32px;
  max-width: 1100px;
  margin: 0 auto;
}

/* Centerpiece Hero Layout - Shifted to Optical Upper Center */
.studio-hero {
  margin-top: 15vh;
  margin-bottom: auto;
  max-width: 780px;
  transition: var(--transition);
}

/* Perfect Flush Left Symmetrical Typography */
.studio-hero-title {
  font-family: 'Syne', sans-serif !important;
  font-size: 5.8rem;
  font-weight: 800 !important;
  letter-spacing: 0.24em !important;
  text-indent: 0 !important;
  margin-left: 0 !important;
  padding-left: 0 !important;
  line-height: 0.98;
  color: var(--text-primary);
  margin-bottom: 28px;
  text-transform: uppercase;
  transition: var(--transition);
}

.studio-hero-statement {
  font-size: 1.35rem;
  line-height: 1.6;
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 620px;
  margin-bottom: 44px;
  letter-spacing: -0.01em;
  margin-left: 0;
  padding-left: 0;
  transition: var(--transition);
}

/* Crisp Action Group with Solid Sharp 0px Radius Corners */
.studio-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: 0;
  padding-left: 0;
}

.btn-main {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--btn-bg);
  color: var(--btn-text);
  padding: 14px 28px;
  border-radius: 0px !important;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.btn-main:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.btn-sub {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--btn-sec-bg);
  color: var(--btn-sec-text);
  padding: 14px 28px;
  border-radius: 0px !important;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: all 0.2s ease;
}

.btn-sub:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.btn-main svg, .btn-sub svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* Bottom Hairline Footer */
.studio-footer {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-tertiary);
  transition: var(--transition);
}

.studio-footer span {
  color: var(--domain-color);
  transition: var(--transition);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .studio-top-bar {
    padding: 16px 20px;
  }

  .studio-viewport {
    padding: 32px 20px 24px 20px;
  }

  .studio-hero {
    margin-top: 10vh;
  }

  .studio-hero-title {
    font-size: 3.4rem !important;
    letter-spacing: 0.18em !important;
    text-indent: 0 !important;
  }

  .studio-hero-statement {
    font-size: 1.1rem;
    margin-bottom: 32px;
  }

  .studio-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .btn-main, .btn-sub {
    justify-content: center;
    width: 100%;
  }

  .studio-footer {
    flex-direction: column;
    gap: 8px;
    text-align: center;
    padding-top: 16px;
  }
}