/* ------------------------------------------------------------
   VOLTA – Global Styles
   ------------------------------------------------------------ */

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

/* Root variables – default is Charge */
:root {
  /* Accent colors */
  --accent-charge: #b6ff3c; /* acid green */
  --accent-charge-rgb: 182, 255, 60;
  --accent-zero: #e11d2e;   /* crimson */
  --accent-zero-rgb: 225, 29, 46;
  
  --accent-color: var(--accent-charge);
  --accent-color-rgb: var(--accent-charge-rgb);

  /* Theme backgrounds */
  --bg-inner: #0e1a0a;
  --bg-mid:   #0a2e08;
  --bg-outer: #010500;

  /* Typography */
  --font-body: 'Inter', sans-serif;
  --font-nav:  'Manrope', sans-serif;
  --font-head: 'Galada', cursive;
}

/* Zero theme – swapped via JS */
.zero-theme {
  --bg-inner: #201a1a;
  --bg-mid:   #120c0c;
  --bg-outer: #050202;
  --accent-color: var(--accent-zero);
  --accent-color-rgb: var(--accent-zero-rgb);
}
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  height: 100%;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  font-family: var(--font-body);
  background: radial-gradient(circle at 50% 50%, var(--bg-inner), var(--bg-mid), var(--bg-outer));
  background-attachment: fixed;
  color: #fff;
}

/* Glass‑morphism header */
header.glass-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  z-index: 1000;
  box-sizing: border-box;
}

header .logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-color);
}

header .logo .logo-icon {
  fill: currentColor;
}

header .wordmark {
  font-family: var(--font-head);
  font-size: 1.8rem;
  margin: 0;
  color: #fff;
}

/* Nav pills */
nav.nav-pills {
  display: flex;
  gap: 0.5rem;
}

nav .nav-link {
  padding: 0.4rem 0.9rem;
  border-radius: 9999px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  text-decoration: none;
  font-family: var(--font-nav);
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}

nav .nav-link.active {
  background: var(--accent-color);
  color: #000;
}

button.contact-btn {
  padding: 0.4rem 1rem;
  border: none;
  border-radius: 9999px;
  background: var(--accent-color);
  color: #000;
  font-weight: 600;
  cursor: pointer;
}

/* Hero center – persistent 3D can */
section.hero-center {
  position: fixed;
  top: 64px;
  left: 0;
  width: 100vw;
  height: calc(100vh - 64px);
  pointer-events: none; /* let cursor events pass through */
  z-index: 5;
}

/* Page content area */
main#page-root {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  z-index: 10;
  pointer-events: none; /* Let clicks pass to 3D can on empty spaces */
}

/* Page sections */
.page-section {
  width: 100%;
  min-height: 100vh;
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 80px 4rem 40px 4rem;
  box-sizing: border-box;
  position: relative;
}

.page-section.full-center {
  grid-template-columns: 1fr;
  text-align: center;
  justify-content: center;
}

/* Content column helpers */
.text-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
  pointer-events: auto; /* Enable clicks on actual text contents */
  z-index: 20;
}

.text-col.left-col {
  grid-column: 1;
  text-align: left;
  align-items: flex-start;
}

.text-col.right-col {
  grid-column: 2;
  text-align: left;
  align-items: flex-start;
}

/* Watermark Background Title */
.watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-head);
  font-size: 15vw;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.03);
  text-transform: uppercase;
  letter-spacing: 1rem;
  user-select: none;
  pointer-events: none;
  z-index: 2;
}

/* Typography & Buttons */
h2.hero-title {
  font-family: var(--font-nav);
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 1rem 0;
  text-transform: uppercase;
  letter-spacing: -1px;
}

.hero-title span {
  color: var(--accent-color);
  text-shadow: 0 0 20px rgba(var(--accent-color-rgb), 0.4);
}

p.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  color: #ccc;
  margin: 0 0 2rem 0;
  max-width: 500px;
}

.btn-primary {
  padding: 0.8rem 2rem;
  font-family: var(--font-nav);
  font-weight: 600;
  font-size: 1rem;
  color: #000;
  background: var(--accent-color);
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(var(--accent-color-rgb), 0.3);
  transition: transform 0.2s, box-shadow 0.2s;
  pointer-events: auto;
}

.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 25px rgba(var(--accent-color-rgb), 0.5);
}

/* Glassmorphic cards */
.glass-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  width: 100%;
  max-width: 600px;
}

.glass-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.5rem;
  border-radius: 16px;
  transition: transform 0.3s ease, border-color 0.3s ease;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.glass-card:hover {
  transform: translateY(-5px);
  border-color: rgba(var(--accent-color-rgb), 0.4);
  box-shadow: 0 8px 30px rgba(var(--accent-color-rgb), 0.1);
}

.glass-card h3 {
  margin: 0 0 0.5rem 0;
  font-family: var(--font-nav);
  color: var(--accent-color);
  font-size: 1.25rem;
}

.glass-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: #aaa;
}

/* Taste Meters */
.taste-meters {
  width: 100%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.meter-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.meter-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-nav);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.meter-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 9999px;
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  width: 0%; /* Animated via GSAP */
  background: var(--accent-color);
  box-shadow: 0 0 10px rgba(var(--accent-color-rgb), 0.5);
  border-radius: 9999px;
  transition: width 1s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Reviews Testimonials */
.reviews-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  width: 100%;
  max-width: 550px;
}

.review-item {
  background: rgba(255, 255, 255, 0.02);
  border-left: 3px solid var(--accent-color);
  padding: 1.5rem;
  border-radius: 0 16px 16px 0;
  backdrop-filter: blur(8px);
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.review-author {
  font-weight: 600;
  font-family: var(--font-nav);
}

.review-stars {
  color: var(--accent-color);
  letter-spacing: 2px;
}

.review-text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.5;
  color: #ddd;
  font-style: italic;
}

/* Floating Flavor Switcher UI */
.flavor-switcher {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1001;
  display: flex;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.3rem;
  border-radius: 9999px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 15px rgba(var(--accent-color-rgb), 0.1);
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
  pointer-events: auto;
}

.flavor-switcher:hover {
  border-color: rgba(var(--accent-color-rgb), 0.3);
}

.switcher-btn {
  padding: 0.6rem 1.2rem;
  border: none;
  background: transparent;
  color: #888;
  font-family: var(--font-nav);
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
}

.switcher-btn.active {
  color: #000;
  background: var(--accent-color);
  box-shadow: 0 2px 10px rgba(var(--accent-color-rgb), 0.4);
}

/* Pointer events auto for interactive header items */
header.glass-header .logo,
header.glass-header .nav-pills .nav-link,
header.glass-header .contact-btn {
  pointer-events: auto;
}

#volta-can {
  pointer-events: auto; /* Enable model drag interactions */
  outline: none;
}

/* Bubble system */
#bubble-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}

.bubble {
  position: absolute;
  bottom: -30px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-color-rgb), 0.3) 0%, rgba(var(--accent-color-rgb), 0.05) 70%, rgba(var(--accent-color-rgb), 0) 100%);
  border: 1px solid rgba(var(--accent-color-rgb), 0.15);
  box-shadow: 0 0 8px rgba(var(--accent-color-rgb), 0.1);
}

/* Responsive breakpoints */
@media (max-width: 1200px) {
  header.glass-header { height: 56px; }
  .page-section { padding: 2rem; }
  h2.hero-title { font-size: 3rem; }
}

@media (max-width: 1080px) {
  .page-section {
    grid-template-columns: 1fr;
    padding: 80px 2rem 40px 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
  }
  .text-col.left-col,
  .text-col.right-col {
    grid-column: 1;
    margin-top: 35vh; /* Push content below the bottle space */
    width: 100%;
    text-align: center;
    align-items: center;
    margin-left: auto;
    margin-right: auto;
    max-width: 600px;
  }
  section.hero-center {
    position: fixed;
    top: 64px;
    left: 0;
    width: 100vw;
    height: 40vh;
    z-index: 3; /* Behind text cards */
    pointer-events: none;
  }
}

@media (max-width: 640px) {
  header.glass-header { flex-direction: column; height: auto; padding: 0.5rem; gap: 0.5rem; }
  nav.nav-pills { flex-wrap: wrap; justify-content: center; }
  .flavor-switcher { bottom: 1rem; right: 50%; transform: translateX(50%); }
}

/* Contact Modal Styles */
.contact-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(15px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.contact-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.contact-modal {
  background: rgba(20, 20, 20, 0.85);
  backdrop-filter: blur(25px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 2.5rem;
  border-radius: 24px;
  width: 90%;
  max-width: 460px;
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.8), 0 0 20px rgba(var(--accent-color-rgb), 0.15);
  position: relative;
  text-align: center;
}

.close-modal-btn {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  background: none;
  border: none;
  color: #888;
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s;
  pointer-events: auto;
}

.close-modal-btn:hover {
  color: var(--accent-color);
}

.contact-modal h3 {
  margin: 0 0 0.5rem 0;
  font-family: var(--font-nav);
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
}

.contact-modal p {
  color: #aaa;
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0 0 2rem 0;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1.2rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 10px rgba(var(--accent-color-rgb), 0.2);
}

.contact-modal form .btn-primary {
  width: 100%;
  margin-top: 0.5rem;
}

.form-success-msg {
  display: none;
  font-family: var(--font-nav);
  font-size: 1.1rem;
  color: var(--accent-color);
  margin-top: 1rem;
  text-shadow: 0 0 15px rgba(var(--accent-color-rgb), 0.3);
}

.form-success-msg.open {
  display: block;
}