/* =========================================
   VARIABLES & THEME SETUP
   ========================================= */
:root {
  /* Colors - HSL for easy manipulation */
  --hue: 250; /* Deep Purple/Blue base */
  --sat: 80%;

  /* Light Theme Defaults */
  --c-bg: hsl(var(--hue), 10%, 98%);
  --c-bg-card: hsl(var(--hue), 10%, 100%);
  --c-bg-secondary: hsl(var(--hue), 10%, 94%);
  --c-text-main: hsl(var(--hue), 20%, 15%);
  --c-text-muted: hsl(var(--hue), 10%, 40%);
  --c-primary: hsl(var(--hue), var(--sat), 55%);
  --c-primary-glow: hsla(var(--hue), var(--sat), 55%, 0.3);
  --c-accent: hsl(320, 80%, 55%); /* Pink/Magenta */
  --c-border: hsl(var(--hue), 10%, 85%);

  /* Typography */
  --font-heading: "Space Grotesk", sans-serif;
  --font-body: "Outfit", sans-serif;

  /* Spacing */
  --sp-xs: 0.5rem;
  --sp-sm: 1rem;
  --sp-md: 2rem;
  --sp-lg: 4rem;
  --sp-xl: 8rem;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  /* Shadows */
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-lg:
    0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
  --c-bg: hsl(var(--hue), 20%, 8%);
  --c-bg-card: hsl(var(--hue), 20%, 12%);
  --c-bg-secondary: hsl(var(--hue), 20%, 15%);
  --c-text-main: hsl(var(--hue), 10%, 95%);
  --c-text-muted: hsl(var(--hue), 10%, 65%);
  --c-border: hsl(var(--hue), 20%, 20%);
  --c-primary: hsl(var(--hue), var(--sat), 65%);
  --c-primary-glow: hsla(var(--hue), var(--sat), 65%, 0.2);
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
}

[data-theme="emerald"] {
  --hue: 150; /* Emerald Green */
  --sat: 70%;
  
  --c-bg: #022c22; /* Emerald 950 */
  --c-bg-card: #064e3b; /* Emerald 900 */
  --c-bg-secondary: #065f46; /* Emerald 800 */
  
  --c-text-main: #ecfdf5; /* Emerald 50 */
  --c-text-muted: #a7f3d0; /* Emerald 200 */
  --c-border: #047857; /* Emerald 700 */
  
  --c-primary: #10b981; /* Emerald 500 */
  --c-primary-glow: rgba(16, 185, 129, 0.3);
  --c-accent: #34d399; /* Emerald 400 */
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 50, 20, 0.3);
  --shadow-md: 0 10px 15px -3px rgba(0, 50, 20, 0.4);
}

/* =========================================
   RESET & BASE
   ========================================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--c-bg);
  color: var(--c-text-main);
  line-height: 1.6;
  transition:
    background-color 0.3s ease,
    color 0.3s ease;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}
ul {
  list-style: none;
}
button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

/* =========================================
   UTILITIES
   ========================================= */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--sp-sm);
}

.section {
  padding: var(--sp-lg) 0;
}

.gradient-text {
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn--primary {
  background: var(--c-primary);
  color: white;
  box-shadow: 0 4px 15px var(--c-primary-glow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--c-primary-glow);
}

.btn--outline {
  border: 1px solid var(--c-border);
  color: var(--c-text-main);
}
.btn--outline:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn--block {
  width: 100%;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.badge--white-label {
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
  color: white;
  margin-bottom: var(--sp-sm);
}

/* =========================================
   HEADER
   ========================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: var(--sp-sm) 0;
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.header.scrolled {
  background: hsla(var(--hue), 20%, 8%, 0.8);
  border-bottom-color: var(--c-border);
}
[data-theme="light"] .header.scrolled {
  background: hsla(var(--hue), 10%, 98%, 0.8);
}

.header__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--c-text-main);
}
.logo__icon {
  color: var(--c-primary);
  font-size: 1.75rem;
}

.nav__list {
  display: flex;
  gap: var(--sp-md);
}
.nav__link {
  font-weight: 500;
  position: relative;
  padding: 0.5rem 1rem;
  border-radius: 99px;
  transition: all 0.3s ease;
}
.nav__link:hover {
  background: hsla(var(--hue), var(--sat), 55%, 0.1);
  color: var(--c-primary);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
}

.nav__toggle,
.nav__close {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--c-text-main);
}

.theme-toggle,
.lang-toggle {
    color: var(--c-text-main);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    padding: 0.5rem;
}
.theme-toggle:hover,
.lang-toggle:hover {
    color: var(--c-primary);
}

.theme-icon-light, .theme-icon-dark, .theme-icon-emerald {
  display: none;
}

[data-theme="light"] .theme-icon-light { display: inline-block; }
[data-theme="dark"] .theme-icon-dark { display: inline-block; }
[data-theme="emerald"] .theme-icon-emerald { display: inline-block; }

/* Mobile Menu */
@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    background: var(--c-bg-card);
    width: 80%;
    height: 100vh;
    padding: var(--sp-lg) var(--sp-md);
    box-shadow: var(--shadow-lg);
    transition: right 0.3s ease;
    z-index: 101;
  }
  .nav.open {
    right: 0;
  }
  .nav__list {
    flex-direction: column;
    gap: var(--sp-sm);
  }
  .nav__toggle,
  .nav__close {
    display: block;
  }
  .nav__close {
    position: absolute;
    top: var(--sp-sm);
    right: var(--sp-sm);
  }
}

/* =========================================
   HERO
   ========================================= */
.hero {
  padding-top: calc(var(--sp-xl) + 2rem);
  padding-bottom: var(--sp-xl);
  position: relative;
  overflow: hidden;
}
.hero__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--sp-lg);
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--c-bg-secondary);
  border-radius: 99px;
  font-size: 0.875rem;
  color: var(--c-primary);
  border: 1px solid var(--c-border);
  margin-bottom: var(--sp-md);
}
.pulse {
  width: 8px;
  height: 8px;
  background: var(--c-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 hsla(320, 80%, 55%, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px hsla(320, 80%, 55%, 0);
  }
  100% {
    box-shadow: 0 0 0 0 hsla(320, 80%, 55%, 0);
  }
}

.hero__title {
  font-family: var(--font-heading);
  font-size: 4rem;
  line-height: 1.1;
  margin-bottom: var(--sp-md);
}
.hero__title span {
  display: block;
}
.hero__description {
  font-size: 1.25rem;
  color: var(--c-text-muted);
  margin-bottom: var(--sp-md);
  max-width: 500px;
}
.hero__buttons {
  display: flex;
  gap: var(--sp-sm);
}

/* AI Orb Visualization */
.ai-orb {
  position: relative;
  width: 400px;
  height: 400px;
  margin: 0 auto;
}
.ai-orb::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    var(--c-primary-glow) 0%,
    transparent 70%
  );
  filter: blur(50px);
  z-index: -1;
}
.ai-orb__core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 150px;
  height: 150px;
  background: var(--c-bg);
  border-radius: 50%;
  box-shadow:
    0 0 50px var(--c-primary),
    inset 0 0 50px var(--c-accent);
  z-index: 2;
}
.ai-orb__rings {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 1px solid var(--c-primary);
  border-radius: 50%;
  animation: spin 10s linear infinite;
}
@keyframes spin {
  100% {
    transform: rotate(360deg);
  }
}

@media (max-width: 960px) {
  .hero__container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero__title {
    font-size: 3rem;
  }
  .hero__buttons,
  .hero__badge {
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
  }
}

/* =========================================
   SECTIONS & CARDS
   ========================================= */
.section__header {
  text-align: center;
  margin-bottom: var(--sp-lg);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.section__title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  margin-bottom: var(--sp-sm);
}
.section__subtitle {
  color: var(--c-text-muted);
  font-size: 1.125rem;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--sp-md);
}

.card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: var(--sp-md);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-primary);
}
.service-card__icon {
  font-size: 2.5rem;
  color: var(--c-primary);
  margin-bottom: var(--sp-sm);
}

/* =========================================
   PRICING
   ========================================= */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--sp-md);
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
}
.pricing-card--popular {
  border: 2px solid var(--c-primary);
  box-shadow: 0 0 20px var(--c-primary-glow);
}
.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--c-primary);
  color: white;
  padding: 0.25rem 1rem;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 700;
}

.pricing-header {
  margin-bottom: var(--sp-md);
  padding-bottom: var(--sp-md);
  border-bottom: 1px solid var(--c-border);
}
.plan-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.plan-price {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--c-text-main);
}
.plan-sub {
  font-size: 0.875rem;
  color: var(--c-text-muted);
}

/* Discount Prices */
.price-original {
    font-size: 1.25rem;
    text-decoration: line-through;
    color: var(--c-text-muted);
    margin-right: 8px;
    font-weight: 400;
}
.price-discounted {
    color: var(--c-accent); /* Make it pop */
    font-weight: 800;
}

/* Discount Badge (Center Top for Cards) */
.discount-badge {
    position: absolute;
    top: -12px;
    right: 20px; /* Offset from Popular badge if present */
    background: var(--c-accent);
    color: #fff;
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    animation: pulseBadge 2s infinite;
}

/* Discount Badge (Corner for Packages) */
.discount-badge-corner {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #ef4444; /* Red for high impact */
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 800;
    font-size: 0.85rem;
    transform: rotate(5deg);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

@keyframes pulseBadge {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.pricing-features {
  flex-grow: 1;
  margin-bottom: var(--sp-md);
}
.pricing-features li {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  color: var(--c-text-muted);
}
.pricing-features i {
  color: var(--c-primary);
}

/* =========================================
   PACKAGES
   ========================================= */
.packages__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-md);
}

@media (max-width: 768px) {
  .packages__grid {
    grid-template-columns: 1fr;
  }
}
.package-card {
  border-top: 4px solid var(--c-accent);
}

/* =========================================
   CONTACT
   ========================================= */
.contact-section {
    background: linear-gradient(to bottom, var(--c-bg), var(--c-bg-secondary));
}
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-lg);
    align-items: start;
}
.contact-content {
    padding-top: var(--sp-md);
}
.contact-content h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    font-family: var(--font-heading);
}
.contact-content p {
    color: var(--c-text-muted);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}
.contact-card-info {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    padding: 2rem;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
}
.contact-card-info .btn {
    margin-top: 1rem;
}

.contact-form-card {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    padding: 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}
@media (max-width: 768px) {
    .contact__grid {
        grid-template-columns: 1fr;
    }
    .contact-content {
        order: 2;
    }
    .contact-form-card {
        order: 1;
    }
}
textarea {
    width: 100%;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--c-border);
    background: var(--c-bg);
    color: var(--c-text-main);
    resize: vertical;
    min-height: 100px;
}
textarea:focus {
    outline: 2px solid var(--c-primary);
    border-color: transparent;
}


/* =========================================
   LEGAL TERMS
   ========================================= */
.legal__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sp-sm);
}
.legal-card {
  background: transparent;
  border: 1px solid var(--c-border);
  text-align: center;
  padding: var(--sp-sm);
}
.legal-card:hover {
  background: var(--c-bg-card);
  border-color: var(--c-primary);
}
.legal-card__icon {
  font-size: 2rem;
  color: var(--c-text-muted);
  margin-bottom: 0.5rem;
  transition: color 0.3s ease;
}
.legal-card:hover .legal-card__icon {
  color: var(--c-primary);
}
.legal-card h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
  color: var(--c-text-main);
}
.legal-card p {
  font-size: 0.875rem;
  color: var(--c-text-muted);
}

/* =========================================
   FOOTER
   ========================================= */
.footer {
  background: var(--c-bg-secondary);
  padding: var(--sp-lg) 0;
  margin-top: var(--sp-xl);
}
.footer__container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--sp-lg);
}
.footer__links ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.footer__links a:hover {
  color: var(--c-primary);
}

/* =========================================
   MODAL
   ========================================= */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.modal.open {
  opacity: 1;
  pointer-events: all;
}

.modal__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
}
.modal__content {
  background: var(--c-bg-card);
  padding: var(--sp-md);
  border-radius: var(--radius-md);
  width: 90%;
  max-width: 400px;
  position: relative;
  z-index: 2;
  transform: translateY(20px);
  transition: transform 0.3s ease;
  border: 1px solid var(--c-border);
}
.modal.open .modal__content {
  transform: translateY(0);
}

.modal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.25rem;
  color: var(--c-text-muted);
}

.form__group {
  margin-bottom: 1rem;
}
.form__group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}
.form__group input {
  width: 100%;
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  background: var(--c-bg);
  color: var(--c-text-main);
}
.form__group input:focus {
  outline: 2px solid var(--c-primary);
  border-color: transparent;
}

/* =========================================
   HERO CHAT VISUAL REPLACEMENT
   ========================================= */
.hero-chat-visual {
    position: relative;
    width: 100%;
    height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.chat-interface-mockup {
    width: 320px;
    background: hsla(var(--hue), 10%, 12%, 0.9); /* Slightly higher opacity for contrast */
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 24px;
    padding: 20px;
    position: relative;
    box-shadow: 
        0 20px 50px -10px rgba(0,0,0,0.5),
        inset 0 0 20px rgba(255,255,255,0.05);
    /* No overflow:hidden here to allow the border glow to bleed out slightly if desired, 
       but keeping it contained with clip-path or inset is safer for exact borders. 
       For an "around the border" glow, we'll use a pseudo-element. */
    transform-style: preserve-3d;
    animation: floatChat 6s ease-in-out infinite;
    transform: rotateY(-5deg) rotateX(2deg);
    z-index: 1;
}

/* Animated Border Glow */
.chat-interface-mockup::before {
    content: '';
    position: absolute;
    inset: -3px; /* The border thickness */
    border-radius: 26px; /* Slightly larger than parent */
    background: conic-gradient(
        from 0deg, 
        transparent 0%, 
        #064e3b 20%, /* Dark Emerald */
        #10b981 40%, /* Bright Emerald */
        transparent 60%
    );
    z-index: -1;
    animation: rotateBorder 4s linear infinite;
    filter: blur(8px); /* The "glow" effect */
    opacity: 0.8;
}

/* Second crisp border line without blur for definition */
.chat-interface-mockup::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 25px;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0));
    z-index: -1;
    pointer-events: none;
}

[data-theme="light"] .chat-interface-mockup {
    background: hsla(var(--hue), 10%, 98%, 0.9);
    border-color: rgba(0,0,0,0.1);
    box-shadow: 0 20px 50px -10px rgba(0,0,0,0.1);
}

@keyframes rotateBorder {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.chat-header {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}
.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    opacity: 0.8;
}
.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.chat-area {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 220px;
}

.chat-msg {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 0.95rem;
    line-height: 1.5;
    max-width: 90%;
    opacity: 0; 
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.chat-msg--user {
    align-self: flex-end;
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
    color: white;
    border-bottom-right-radius: 4px;
}
.chat-msg--ai {
    align-self: flex-start;
    background: var(--c-bg-secondary);
    border: 1px solid var(--c-border);
    color: var(--c-text-main);
    border-bottom-left-radius: 4px;
}

/* Typing Dots */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 4px;
    align-items: center;
}
.typing-indicator span {
    display: block;
    width: 6px;
    height: 6px;
    background: var(--c-text-muted);
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out both;
}
.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }

/* Stat Box Mockup inside AI Msg */
.stat-box-mockup {
    margin-top: 10px;
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    padding: 10px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: 0;
    animation: slideUpStat 0.5s ease-out forwards 0.5s; 
}
.stat-bar {
    height: 6px;
    background: #10b981;
    border-radius: 3px;
    flex-grow: 1;
    width: 0; /* Animated later via keyframes if desired, but here specific width set in HTML */
}

/* Input Area Mockup */
.chat-input-mockup {
    margin-top: auto;
    height: 44px;
    background: var(--c-bg);
    border-radius: 99px;
    display: flex;
    align-items: center;
    padding: 0 5px 0 15px;
    justify-content: space-between;
    border: 1px solid var(--c-border);
}
.input-line {
    width: 50%;
    height: 6px;
    background: var(--c-text-muted);
    border-radius: 3px;
    opacity: 0.2;
}
.send-btn-mockup {
    width: 34px;
    height: 34px;
    background: var(--c-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.send-btn-mockup::after {
    content: '';
    width: 0; 
    height: 0; 
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 8px solid white;
    margin-left: 2px;
}

/* Glow Background */
.chat-glow-anim {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140%;
    height: 140%;
    background: radial-gradient(circle, var(--c-primary) 0%, transparent 65%);
    opacity: 0.1;
    z-index: -1;
    filter: blur(40px);
    animation: glowPulse 6s infinite alternate;
}

/* --- ANIMATION SEQUENCES (Infinite Loop) --- */

/* Float the card */
@keyframes floatChat {
    0%, 100% { transform: translateY(0) rotateY(-5deg) rotateX(2deg); }
    50% { transform: translateY(-15px) rotateY(5deg) rotateX(-2deg); }
}

/* 1. Reset & start invisible */
.fade-in-1, .fade-in-2, .fade-in-3 { opacity: 0; animation-duration: 12s; animation-iteration-count: infinite; }

/* Sequence: Total cycle ~ 12s 
   msg 1 (user): in at 0.5s, out at 10s
   msg 2 (thinking): in at 1.5s, out at 3.5s
   msg 3 (answer): in at 4.0s, out at 10s
*/
.fade-in-1 { animation-name: seqMsg1; }
.fade-in-2 { animation-name: seqMsg2; }
.fade-in-3 { animation-name: seqMsg3; }

@keyframes seqMsg1 {
    0% { opacity: 0; transform: translateY(10px); }
    5%, 85% { opacity: 1; transform: translateY(0); }
    90%, 100% { opacity: 0; transform: translateY(-10px); }
}

@keyframes seqMsg2 {
    0%, 12% { opacity: 0; display: none; transform: translateY(10px); }
    15%, 28% { opacity: 1; display: flex; transform: translateY(0); }
    32%, 100% { opacity: 0; display: none; }
}

@keyframes seqMsg3 {
    0%, 32% { opacity: 0; transform: translateY(10px); }
    35%, 85% { opacity: 1; transform: translateY(0); }
    90%, 100% { opacity: 0; transform: translateY(-10px); }
}

@keyframes glowPulse {
    0% { opacity: 0.1; transform: translate(-50%, -50%) scale(0.9); }
    100% { opacity: 0.25; transform: translate(-50%, -50%) scale(1.1); }
}

/* =========================================
   NOTIFICATION SYSTEM (Top Banner)
   ========================================= */
.notification-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    width: 90%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none; /* Let clicks pass through if empty */
}

.notification {
    background: var(--c-bg-card);
    border-left: 4px solid var(--c-primary);
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 12px;
    pointer-events: auto;
    animation: slideDownToast 0.4s ease forwards;
    opacity: 0;
    transform: translateY(-20px);
    backdrop-filter: blur(10px);
    color: var(--c-text-main);
}
.notification.error { border-color: #ef4444; }
.notification.success { border-color: #10b981; }
.notification.info { border-color: var(--c-primary); }

.notification i { font-size: 1.25rem; }
.notification.error i { color: #ef4444; }
.notification.success i { color: #10b981; }

@keyframes slideDownToast {
    to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUpToast {
    to { opacity: 0; transform: translateY(-20px); }
}


/* =========================================
   PROMO MODAL (Centered)
   ========================================= */
.promo-modal {
    position: fixed;
    inset: 0;
    z-index: 11000;
    display: none; /* Hidden by default */
    align-items: center;
    justify-content: center;
}
.promo-modal.is-visible {
    display: flex;
}

.promo-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease;
}

.promo-modal__content {
    position: relative;
    width: 90%;
    max-width: 450px;
    background: var(--c-bg-card);
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--c-primary);
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
    animation: zoomIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
}

/* Shine effect */
.promo-modal__content::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--c-primary-glow) 0%, transparent 60%);
    animation: rotateBorder 10s linear infinite;
    z-index: -1;
}

.promo-modal__close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.5rem;
    color: var(--c-text-muted);
    transition: color 0.2s;
}
.promo-modal__close:hover { color: var(--c-text-main); }

.promo-icon {
    font-size: 3rem;
    color: var(--c-primary);
    margin-bottom: 1rem;
    animation: bounce 2s infinite;
}

#promo-title {
    font-size: 2rem;
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

#promo-message {
    color: var(--c-text-muted);
    margin-bottom: 2rem;
    line-height: 1.6;
}

@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
    40% {transform: translateY(-20px);}
    60% {transform: translateY(-10px);}
}

/* Glow Pulse */
@keyframes glowPulse {
    from { opacity: 0.05; transform: translate(-50%, -50%) scale(0.9); }
    to { opacity: 0.2; transform: translate(-50%, -50%) scale(1.05); }
}

/* 
   Conversation Loop Definition (Total ~10s cycle) 
   0s: Blank
   1s: User msg appears
   3s: Thinking appears
   5s: Thinking goes, AI msg appears
   9s: Fade out
*/

.fade-in-1 { animation: seqUser 10s infinite; }
.fade-in-2 { animation: seqThink 10s infinite; }
.fade-in-3 { animation: seqAI 10s infinite; }

@keyframes seqUser {
    0% { opacity: 0; transform: translateY(20px) scale(0.95); }
    5%, 90% { opacity: 1; transform: translateY(0) scale(1); }
    95%, 100% { opacity: 0; transform: translateY(-10px); }
}

@keyframes seqThink {
    0%, 25% { opacity: 0; display: none; transform: translateY(10px); }
    30%, 45% { opacity: 1; display: block; transform: translateY(0); }
    50%, 100% { opacity: 0; display: none; transform: translateY(-5px); } /* Disappears when AI responds */
}

@keyframes seqAI {
    0%, 45% { opacity: 0; transform: translateY(20px); }
    50%, 90% { opacity: 1; transform: translateY(0); }
    95%, 100% { opacity: 0; transform: translateY(-10px); }
}

@keyframes typing {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

@keyframes slideUpStat {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}