@import url('https://fonts.googleapis.com/css2?family=Inter:wght@200;300;400;500;600;700&family=Geist+Mono:wght@100..900&display=swap');

/* ROOT VARIABLES */
:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Geist Mono', monospace;
  --bg-color: #09090B;
  --surface-color: #0E0E11;
  --accent-purple: #7C3AED;
  --border-color: rgba(255, 255, 255, 0.1);
}

/* BASE STYLING */
html {
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  height: 100%;
  overflow-y: scroll;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  margin: 0;
  padding: 0;
  height: 100%;
}

.font-mono {
  font-family: var(--font-mono);
}

/* LOGO CONTAINER GLOW */
.logo-container {
  box-shadow: 0 0 40px rgba(124, 58, 237, 0.05);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.logo-container:hover {
  border-color: rgba(124, 58, 237, 0.25);
  box-shadow: 0 0 50px rgba(124, 58, 237, 0.1);
}

/* MODAL CONTAINER GLOW */
#modal-card {
  box-shadow: 0 0 50px rgba(124, 58, 237, 0.06);
}

/* INPUT FOCUS STATES (Linear-like solid style) */
input:focus, select:focus, textarea:focus {
  background-color: #0c0c0e !important;
  border-color: rgba(124, 58, 237, 0.3) !important;
  outline: none;
}

/* SCROLLBAR STYLE */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: #09090B;
}

::-webkit-scrollbar-thumb {
  background: #27272A;
  border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
  background: #3F3F46;
}

/* MODAL ANIMATION HANDLERS */
#contact-modal.modal-active {
  opacity: 1;
  pointer-events: auto;
}

#contact-modal.modal-active #modal-backdrop {
  opacity: 1;
}

#contact-modal.modal-active #modal-card {
  opacity: 1;
  transform: scale(1);
}

/* SUCCESS ICON DRAWING ANIMATIONS */
.success-icon-ring {
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: draw-ring 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.success-icon-check {
  stroke-dasharray: 50;
  stroke-dashoffset: 50;
  animation: draw-check 0.5s 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes draw-ring {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes draw-check {
  to {
    stroke-dashoffset: 0;
  }
}

/* PAGE LOAD FADE-IN */
@keyframes page-fade-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: page-fade-in 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* SNAP SECTION HEIGHTS */
.snap-section {
  scroll-snap-align: start;
  scroll-snap-stop: always;
  height: 100dvh;
}

/* MOUSE SCROLL DOT ANIMATION */
@keyframes scroll-dot {
  0% { transform: translateY(0); opacity: 0; }
  20% { opacity: 1; }
  80% { opacity: 1; transform: translateY(8px); }
  100% { opacity: 0; transform: translateY(8px); }
}

.animate-scroll-dot {
  animation: scroll-dot 1.8s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

/* SOCIAL LINK GLOW HOVER */
.footer-social-link {
  color: rgba(255, 255, 255, 0.75) !important;
  transition: color 0.3s ease, filter 0.3s ease;
}

.footer-social-link svg {
  width: 22px !important;
  height: 22px !important;
}

@media (min-width: 768px) {
  .footer-social-link svg {
    width: 24px !important;
    height: 24px !important;
  }
}

.footer-social-link:hover {
  color: #7C3AED !important;
  filter: drop-shadow(0 0 8px rgba(124, 58, 237, 0.6));
}

/* MODAL BACKGROUND CORRECTION */
#modal-backdrop {
  background-color: rgba(9, 9, 11, 0.95);
}

/* STICKY NAV BACKGROUND TRANSITION ON SCROLL */
header {
  transition: background-color 0.3s ease, border-color 0.3s ease, padding 0.3s ease;
}

header.scrolled {
  background-color: rgba(6, 6, 8, 0.96) !important;
  border-bottom-color: rgba(255, 255, 255, 0.08) !important;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

/* MOBILE HAMBURGER BUTTON ROTATION */
#mobile-menu-btn.active #hamburger-line-1 {
  transform: translateY(3px) rotate(45deg);
}

#mobile-menu-btn.active #hamburger-line-2 {
  transform: translateY(-3px) rotate(-45deg);
}

/* MOBILE MENU SLIDE-DOWN OVERLAY */
#mobile-menu-overlay {
  transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.3s ease;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

#mobile-menu-overlay.active {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
  background-color: rgba(9, 9, 11, 0.98);
}

/* RESPONSIVE SCALE ADJUSTMENTS */
@media (max-width: 480px) {
  /* Support for small screens like 320px, 375px, 390px, 414px */
  h1 {
    font-size: 2.25rem !important; /* text-4xl */
  }
  h2 {
    font-size: 1.875rem !important; /* text-3xl */
  }
  .max-w-md {
    max-width: 100% !important;
  }
  section {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
}