/**
 * SYRUP420 - Main Stylesheet
 * แยกไฟล์ CSS เพื่อ SEO และ Performance
 * ใช้กับทุกหน้าผ่าน components/head.php
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
  --bg1: #0f0f0f;
  --bg2: #0f0f0f;
  --bg3: #0f0f0f;
  --acc: #9F7AEA;
  --acc2: #C4B5FD;
  --ink: #F8F7FB;
}

/* ============================================
   Base Styles
   ============================================ */
html,
body {
  scroll-behavior: smooth;
}

html {
  scrollbar-gutter: stable;
}

body {
  font-family: 'Kanit', system-ui, -apple-system, Segoe UI, Roboto, 'Helvetica Neue', Arial;
  background-color: var(--bg1);
}

/* ============================================
   Glass Effect
   ============================================ */
.glass {
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, .03);
  border: 1px solid rgba(255, 255, 255, .08);
}

/* ============================================
   Gradient Background
   ============================================ */
.grad-bg {
  background: var(--bg1);
  min-height: 100vh;
}

/* ============================================
   Button Styles
   ============================================ */
.btn {
  transition: transform .15s ease;
}

.btn:active {
  transform: translateY(1px);
}

/* ============================================
   Progress Bar
   ============================================ */
.progress-bar {
  width: 0%;
}

/* ============================================
   Image Loading Optimization
   ============================================ */
.product-img {
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.product-img.loaded {
  opacity: 1;
}

.product-img.error {
  opacity: 0.8;
  background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
}

/* Lazy loading placeholder */
.img-placeholder {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ============================================
   Loading Animation - Smooth & Elegant
   ============================================ */
@keyframes progress {
  0% {
    width: 0%;
    transform: translateX(0);
  }
  50% {
    width: 70%;
    transform: translateX(0);
  }
  100% {
    width: 100%;
    transform: translateX(0);
  }
}

.animate-progress {
  animation: progress 1.5s ease-in-out infinite;
}

/* Smooth fade animations for loader */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(0.95);
  }
}

@keyframes logoFloat {
  0%,
  100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-10px) scale(1.05);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.loader-fade-in {
  animation: fadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.loader-fade-out {
  animation: fadeOut 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo-float {
  animation: logoFloat 3s ease-in-out infinite;
}

.progress-shimmer {
  background: linear-gradient(90deg,
      rgba(255, 255, 255, 0.1) 0%,
      rgba(255, 255, 255, 0.3) 50%,
      rgba(255, 255, 255, 0.1) 100%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

/* ============================================
   FAQ Accordion Styles
   ============================================ */
#faq .glass.rounded-2xl {
  cursor: pointer;
  transition: all 0.3s ease;
}

#faq .glass.rounded-2xl:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

#faq .w-6.h-6.rounded-full {
  transition: all 0.3s ease;
}

/* ============================================
   Review Tags Styles
   ============================================ */
#home-reviews .flex.flex-wrap.gap-2 span {
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

#home-reviews .flex.flex-wrap.gap-2 span:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ============================================
   Custom Scrollbar - WebKit
   ============================================ */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: rgba(22, 9, 38, 0.8);
  border-radius: 6px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #9F7AEA, #C4B5FD);
  border-radius: 6px;
  border: 2px solid rgba(22, 9, 38, 0.8);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, #8B5CF6, #A78BFA);
}

::-webkit-scrollbar-thumb:active {
  background: linear-gradient(180deg, #7C3AED, #9333EA);
}

/* Firefox Scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: #9F7AEA rgba(22, 9, 38, 0.8);
}

/* ============================================
   Utility Classes
   ============================================ */
.ring-acc {
  box-shadow: 0 0 0 2px rgba(159, 122, 234, .35);
}

/* ============================================
   Product Grid Styles
   ============================================ */
.product-card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(159, 122, 234, 0.2);
}

/* ============================================
   Modal Styles
   ============================================ */
.modal-backdrop {
  backdrop-filter: blur(8px);
}

/* ============================================
   Footer Accordion (Mobile)
   ============================================ */
.footer-accordion-btn svg {
  transition: transform 0.2s ease;
}

.footer-accordion-btn.active svg {
  transform: rotate(180deg);
}