/* 
   HIDROTWINTURBO - Premium CSS System
   Tailored for High-end Appearance (Dark Mode, Glows, Micro-interactions) 
*/

:root {
  --bg-primary: #050505;
  --bg-secondary: #0a0a0c;
  
  --accent-cyan: #00e5ff;
  --accent-blue: #007bff;
  --accent-green: #00ff88;
  
  --text-primary: #ffffff;
  --text-secondary: #ffffff;
  --text-muted: #ffffff;
  
  --glass-bg: rgba(20, 20, 22, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  
  /* Safe Area env variables for mobile notch support */
  --sat: env(safe-area-inset-top);
  --sab: env(safe-area-inset-bottom);
  --sal: env(safe-area-inset-left);
  --sar: env(safe-area-inset-right);

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: 'Montserrat', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  /* tabular formatting for numbers naturally */
  font-variant-numeric: tabular-nums;
  position: relative;
}

/* Ambient Blue Smoke Effect */
.ambient-smoke {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background: radial-gradient(circle at 50% 50%, rgba(0, 229, 255, 0.05), transparent 70%);
}
.smoke-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px); /* Use standard CSS blur */
  mix-blend-mode: screen;
  will-change: transform;
}
.blob-1 {
  width: 40vw; height: 40vw;
  background: rgba(0, 229, 255, 0.2);
  top: -10%; left: -10%;
  animation: floatSmoke1 20s infinite alternate ease-in-out;
}
.blob-2 {
  width: 50vw; height: 50vw;
  background: rgba(0, 123, 255, 0.15);
  bottom: -10%; right: -10%;
  animation: floatSmoke2 25s infinite alternate ease-in-out;
}
.blob-3 {
  width: 30vw; height: 30vw;
  background: rgba(0, 255, 136, 0.1);
  top: 40%; left: 30%;
  animation: floatSmoke3 15s infinite alternate ease-in-out;
}

@keyframes floatSmoke1 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(10vw, 10vh) scale(1.1); }
}
@keyframes floatSmoke2 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-10vw, -10vh) scale(1.1); }
}
@keyframes floatSmoke3 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(5vw, -5vh) scale(1.2); }
}

/* Accessibility: Focus States (do NOT use transition: all) */
:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 4px;
}
:focus {
  outline: none;
}

/* Links and Buttons (Vercel Guidelines: tap target >= 44px) */
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease-out;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Layout Utilities */
.container {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  width: 100%;
}
.p-safe {
  padding-top: calc(1rem + var(--sat));
  padding-left: var(--sal);
  padding-right: var(--sar);
  padding-bottom: calc(1rem + var(--sab));
}
.border-top {
  border-top: 1px solid var(--glass-border);
}

/* Typography Preferences */
h1, h2, h3 {
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-wrap: balance; /* prevents widows on headings */
}
.section-desc {
  color: var(--text-secondary);
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  max-width: 600px;
  margin: 1rem auto 0;
}
.accent-text {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-gradient-green { background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.text-gradient-blue { background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.text-gradient-cyan { background: linear-gradient(135deg, #fff, var(--accent-cyan)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(5, 5, 5, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
}
.navbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}
.brand-text {
  font-weight: 800;
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  letter-spacing: -0.05em;
}
.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}
.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  padding: 0.5rem;
  display: inline-block;
}
.nav-link:hover {
  color: var(--text-primary);
}

/* Navbar Mobile Adaptivity */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  width: 44px;
  height: 44px;
  cursor: pointer;
  z-index: 1001; /* Above overlay */
  /* Vercel rule: proper hover targets and min hit areas (44px via inline height) */
}
.mobile-toggle svg {
  pointer-events: none;
}
.mobile-toggle .line-1, .line-2, .line-3 {
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}
/* X animation */
.mobile-toggle[aria-expanded="true"] .line-1 { opacity: 0; }
.mobile-toggle[aria-expanded="true"] .line-2 { transform: translateY(6px) rotate(45deg); }
.mobile-toggle[aria-expanded="true"] .line-3 { transform: translateY(-6px) rotate(-45deg); }

.nav-overlay {
  display: contents;
}
.mobile-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

@media (max-width: 768px) {
  .mobile-toggle { display: flex; align-items: center; justify-content: flex-end; }
  
  .nav-overlay {
    position: fixed;
    top: 0; right: -100%;
    width: 100%; height: 100dvh;
    background: rgba(5, 5, 5, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
  }
  .nav-overlay.active {
    right: 0;
  }
  
  .mobile-nav {
    flex-direction: column;
    gap: 3rem;
  }
  .nav-links {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
  }
  .nav-link { font-size: 1.5rem; font-weight: 600; }
  .nav-cta { width: 100%; font-size: 1.125rem; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: clamp(0.9rem, 2vw, 1rem);
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.2s, box-shadow 0.2s;
  min-height: 44px; /* Hit area rule */
  position: relative;
  overflow: hidden;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn:active {
  transform: translateY(0);
}
.btn-primary {
  background: var(--text-primary);
  color: #000;
}
.btn-primary:hover {
  background: #e0e0e0;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}
.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}
.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}
.btn-block {
  width: 100%;
}
.btn .spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(0,0,0,0.2);
  border-top-color: #000;
  border-radius: 50%;
  animation: spinner 0.6s linear infinite;
  position: absolute;
}
.btn.is-loading .btn-text {
  opacity: 0;
}
.btn.is-loading .spinner {
  display: block;
}
@keyframes spinner { to { transform: rotate(360deg); } }

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding-top: 100px; /* Offset navbar */
}
.hero-content {
  max-width: 800px;
  z-index: 2;
  width: 100%;
  margin: 0 auto;
  text-align: center;
}
.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #fff 30%, #a0a0a0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  margin: 0 auto 2.5rem auto;
  max-width: 700px;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
}
@media (max-width: 600px) {
  .hero-actions { flex-direction: column; }
}
.hero-visual {
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(5,5,5,0.7) 0%, rgba(5,5,5,0.0) 50%, var(--bg-primary) 100%);
  z-index: 1;
}
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.4;
  z-index: 2;
  animation: floatOrb 8s ease-in-out infinite alternate;
}
.primary-orb {
  top: 20%; right: 10%;
  width: 400px; height: 400px;
  background: var(--accent-cyan);
}
.secondary-orb {
  bottom: 10%; right: 30%;
  width: 300px; height: 300px;
  background: var(--accent-blue);
  animation-delay: -4s;
}
@keyframes floatOrb {
  0% { transform: translateY(0) scale(1); }
  100% { transform: translateY(-50px) scale(1.1); }
}

/* Sections & Grids */
.section {
  padding: clamp(3rem, 8vw, 6rem) 0;
  content-visibility: auto;
  contain-intrinsic-size: 1px 500px;
}
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}
.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}
.grid {
  display: grid;
  gap: 1.5rem;
}
.layout-2-col {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.layout-3-col {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* Glass Cards */
.glass-panel, .glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: clamp(1.25rem, 5vw, 2.5rem);
}
.feature-card {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s;
}
.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.2);
}
.feature-card h3 {
  margin-bottom: 1rem;
  font-size: clamp(1.15rem, 3vw, 1.3rem);
}
.feature-card p {
  color: var(--text-secondary);
  font-size: clamp(0.9rem, 2vw, 1rem);
}

/* Process Grid & Infographics */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.process-step {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 2.5rem);
}
.step-number {
  position: absolute;
  top: -10px;
  right: -5px;
  font-size: 6rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.03);
  line-height: 1;
  z-index: 0;
  transition: color 0.3s ease;
}
.process-step:hover .step-number {
  color: rgba(0, 240, 255, 0.08);
}
.process-step h3, .process-step p {
  position: relative;
  z-index: 1;
}

/* Vertical CSS Graph */
.css-graph {
  display: flex;
  height: clamp(260px, 40vw, 360px);
  margin: 3rem auto 4rem;
  padding: 1rem 1rem 0 0;
  max-width: 800px;
  position: relative;
}
.graph-y-axis {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-right: clamp(0.5rem, 2vw, 1.5rem);
  color: var(--text-muted);
  font-size: clamp(0.75rem, 2vw, 0.9rem);
  font-weight: 500;
  border-right: 1px solid var(--glass-border);
  position: relative;
  height: calc(100% - 3rem);
}
.graph-columns {
  display: flex;
  flex: 1;
  justify-content: space-around;
  align-items: flex-end;
  padding-bottom: 3rem;
  position: relative;
}
.graph-columns::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 3rem;
  background-image: linear-gradient(to bottom, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 100% 50%;
  z-index: 0;
}
.graph-columns::after {
  content: '';
  position: absolute;
  bottom: 3rem; left: 0; right: 0;
  height: 1px;
  background: rgba(255,255,255,0.2);
  z-index: 1;
}
.graph-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  width: 20%;
  position: relative;
  z-index: 2;
  justify-content: flex-end;
}
.graph-bar {
  width: clamp(28px, 6vw, 48px);
  height: 100%;
  background: transparent;
  position: relative;
  display: flex;
  align-items: flex-end;
}
.graph-fill {
  width: 100%;
  background: linear-gradient(180deg, #00f0ff, #0055ff);
  border-radius: 4px 4px 0 0;
  box-shadow: 0 -5px 15px rgba(0, 240, 255, 0.4), inset 0 0 10px rgba(255,255,255,0.2);
  position: relative;
  transform-origin: bottom;
  transform: scaleY(0);
}
.css-graph.animate .graph-fill {
  animation: growUp 1.5s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}
.graph-value {
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  font-weight: 800;
  font-size: clamp(0.8rem, 2vw, 1rem);
  color: #fff;
  opacity: 0;
  text-shadow: 0 0 10px rgba(0,240,255,0.8);
}
.css-graph.animate .graph-value {
  animation: fadeIn 0.5s forwards;
}
.graph-label {
  position: absolute;
  bottom: -3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: clamp(0.7rem, 1.8vw, 0.9rem);
  font-weight: 500;
  color: var(--text-secondary);
  line-height: 1.2;
  width: 150%;
}
/* Stagger animations */
.graph-col:nth-child(1) .graph-fill { animation-delay: 0s; }
.graph-col:nth-child(2) .graph-fill { animation-delay: 0.2s; }
.graph-col:nth-child(3) .graph-fill { animation-delay: 0.4s; }
.graph-col:nth-child(4) .graph-fill { animation-delay: 0.6s; }

.graph-col:nth-child(1) .graph-value { animation-delay: 1.0s; }
.graph-col:nth-child(2) .graph-value { animation-delay: 1.2s; }
.graph-col:nth-child(3) .graph-value { animation-delay: 1.4s; }
.graph-col:nth-child(4) .graph-value { animation-delay: 1.6s; }

@keyframes growUp { 0% { transform: scaleY(0); } 100% { transform: scaleY(1); } }
@keyframes fadeIn { to { opacity: 1; } }

/* Feature Centered Cards & SVG Icons */
.feature-centered-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
}
.feature-centered-cards .feature-card {
  flex: 1 1 320px;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.feature-icon-svg {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
}
.safe-icon {
  color: var(--accent-cyan);
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.15);
}
.fast-icon {
  color: var(--accent-green);
  box-shadow: 0 0 24px rgba(0, 255, 136, 0.15);
}

/* Stats */
.stat-card {
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.stat-value {
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -0.05em;
}
.stat-label {
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  font-weight: 500;
  color: var(--text-secondary);
}

/* Contact Section */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  padding: 3rem;
}
@media (max-width: 992px) {
  .contact-wrapper {
    grid-template-columns: 1fr;
    padding: 2rem;
  }
}
.contact-info h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  margin-bottom: 1rem;
}
.contact-details { margin-top: 2rem; text-align: left; display:flex; flex-direction:column; gap:1.5rem; }
.contact-card { display: flex; flex-direction: column; gap: 0.5rem; }
.contact-header { display: flex; align-items: center; gap: 0.75rem; font-size: 1.1rem; }
.phone-link { font-weight: 700; color: var(--accent-cyan); letter-spacing: 0.5px; }
.messenger-links, .socials { display: flex; gap: 1rem; align-items: center; justify-content: flex-start; }
.messenger-link, .social-link {
  display: flex; align-items: center; gap: 0.5rem; color: var(--text-primary); opacity: 0.8;
  transition: opacity 0.2s, transform 0.2s, color 0.2s; text-decoration: none;
}
.messenger-link:hover, .social-link:hover { opacity: 1; transform: translateY(-3px); }
.messenger-link svg, .social-link svg { width: 30px; height: 30px; }
.messenger-link.tg:hover { color: #0088cc; }
.messenger-link.vi:hover { color: #7360f2; }
.messenger-link.wa:hover { color: #25d366; }
.social-link.fb:hover { color: #1877f2; }
.social-link.tt:hover { color: #ff0050; }
.contact-info p { color: var(--text-secondary); margin-bottom: 2rem; font-size: clamp(0.95rem, 2vw, 1.1rem); }
.contact-item { margin-bottom: 1rem; font-size: clamp(0.95rem, 2vw, 1.05rem); }
.link-hover:hover { color: var(--accent-cyan); text-decoration: underline; }

/* Forms Configuration for Vercel Guidelines */
.form-group {
  margin-bottom: 1.5rem;
  position: relative;
}
label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: #ccc;
}
input {
  width: 100%;
  padding: 0.875rem 1rem;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}
input::placeholder { color: var(--text-muted); }

/* Form Error States */
input[aria-invalid="true"] { border-color: #ff4d4f; }
.error-msg {
  display: none;
  color: #ff4d4f;
  font-size: 0.8rem;
  margin-top: 0.375rem;
}
.error-msg.visible { display: block; }
.form-success {
  margin-top: 1.5rem;
  color: var(--accent-green);
  font-weight: 500;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  border: 0;
}

/* ========================================================================= */
/* ULTRA MOBILE PERFORMANCE OPTIMIZATIONS                                    */
/* ========================================================================= */
@media (max-width: 992px) {
  /* 1. Disable SVG fractal noise filter over the whole viewport */
  .ambient-smoke {
    filter: none !important;
  }
  
  /* 2. Freeze specific expensive animations or slow them down hugely */
  .smoke-blob {
    filter: blur(40px) !important; /* Reduce blur radius computation */
    mix-blend-mode: normal !important; /* Disable blending maths */
    animation-duration: 30s !important; /* Extremely slow movement to drop framerate strain */
    will-change: auto !important; /* Free up GPU memory */
  }

  /* 3. Disable the glow orbs behind the heavy video */
  .glow-orb {
    display: none !important;
  }
}
.form-success {
  margin-top: 1.5rem;
  color: var(--accent-green);
  font-weight: 500;
}

/* Footer */
.footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}
.footer-content {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Preloader */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
}
#preloader.hidden {
  opacity: 0;
  visibility: hidden;
}
.loader-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid var(--glass-border);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { 100% { transform: rotate(360deg); } }

/* Hero Video Background */
.video-background-container {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: -1;
}
.bg-video {
  position: absolute;
  top: 50%; left: 50%;
  min-width: 100%; min-height: 100%;
  width: auto; height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
  opacity: 0;
  transition: opacity 2s ease-in-out;
}
.bg-video.active {
  opacity: 0.8; /* Increased visibility */
}

/* Video Reviews Section */
.reviews-container {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  gap: 2rem;
}
.review-card {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.5rem;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.review-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-cyan);
}
.video-wrapper {
  position: relative;
  width: 100%;
  max-height: 700px;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--glass-border);
  display: flex;
  justify-content: center;
  align-items: center;
}
.video-wrapper video {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}
.review-info h3 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
}
.review-info p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Presentation Section */
.presentation-card {
  max-width: 900px;
  margin: 0 auto;
}

.presentation-inner {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 5vw, 3rem);
}

.presentation-icon {
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.03);
  padding: 2rem;
  border-radius: 24px;
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.presentation-info h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  margin-bottom: 1rem;
}

.presentation-info p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: clamp(0.95rem, 2vw, 1.1rem);
}

.presentation-actions {
  display: flex;
  gap: 1rem;
}

@media (max-width: 768px) {
  .presentation-inner {
    flex-direction: column;
    text-align: center;
  }
  .presentation-actions {
    flex-direction: column;
  }
}

/* Utilities */
.mt-2 { margin-top: 1.5rem !important; }
.mt-3 { margin-top: 3rem !important; }