/* ==========================================================================
   oops. Creative Agency - Design System & Styles
   ========================================================================== */

/* Design Tokens & Theme Variables */
:root {
  /* Colors */
  --bg-dark: #09090b;
  --bg-slate: #121215;
  --accent: #ccff00;            /* Cyber Lime / Acid Green */
  --accent-rgb: 204, 255, 0;
  --accent-hover: #b8e600;
  --text-light: #f4f4f5;
  --text-muted: #8e8e93;
  --border-color: rgba(244, 244, 245, 0.08);
  --border-color-bold: rgba(244, 244, 245, 0.2);
  --error-color: #ff3b30;       /* Modern red for errors */
  --error-bg: rgba(255, 59, 48, 0.06);
  --success-color: #34c759;     /* Modern green for success */
  
  /* Fonts */
  --font-heading: 'Syne', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;

  /* Spacings */
  --header-height-large: 100px;
  --header-height-small: 70px;
  --container-max-width: 1300px;

  /* Transitions */
  --t-fast: 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
  --t-normal: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --t-slow: 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height-small);
  background-color: var(--bg-dark);
  color: var(--text-light);
  font-family: var(--font-body);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  line-height: 1.6;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: #27272a;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* ==========================================================================
   Global Texture / Noise Overlays
   ========================================================================== */
/* SVG noise source hidden styling */
.svg-grain-source {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* Tactile Grain Overlay */
.grain-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

/* ==========================================================================
   Typography Utilities
   ========================================================================== */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 800;
  text-transform: lowercase;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

p {
  color: var(--text-muted);
  font-weight: 300;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast);
}

.text-accent {
  color: var(--accent);
}

.accent-dot {
  color: var(--accent);
}

/* ==========================================================================
   Layout Elements
   ========================================================================== */
.section-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 4rem;
}

@media (max-width: 768px) {
  .section-container {
    padding: 0 1.5rem;
  }
}

.mobile-only {
  display: none;
}

@media (max-width: 768px) {
  .mobile-only {
    display: inline;
  }
}

.section-header {
  margin-bottom: 5rem;
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent);
  display: block;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.9rem, 7vw, 4.5rem);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

@media (max-width: 480px) {
  .section-title {
    font-size: 2.1rem;
  }
  .about-lead {
    font-size: 1.45rem;
  }
  .hero-tagline {
    font-size: 1.15rem;
  }
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height-large);
  z-index: 100;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: 
    height var(--t-normal), 
    background-color var(--t-normal), 
    border-bottom-color var(--t-normal), 
    backdrop-filter var(--t-normal);
}

.header .brand-logo {
  opacity: var(--hero-scroll-progress, 0);
  transition: opacity var(--t-fast);
}

.header.scrolled .brand-logo {
  opacity: 1;
}

/* Initial fallback status (glassmorphic but tall) */
.header.scrolled {
  height: var(--header-height-small);
  background-color: rgba(9, 9, 11, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border-color);
}

/* Modern CSS Scroll-driven header animations */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: scroll()) and (animation-range: 0% 100%)) {
    @keyframes shrink-header {
      to {
        height: var(--header-height-small);
        background-color: rgba(9, 9, 11, 0.85);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom-color: var(--border-color);
      }
    }
    
    .header {
      /* Animation applied declaratively */
      animation: shrink-header auto linear both;
      animation-timeline: scroll(block root);
      animation-range: 0px 100px;
    }
  }
}

.header-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

@media (max-width: 768px) {
  .header-container {
    padding: 0 1.5rem;
  }
}

.brand-logo {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--text-light);
}

.brand-logo:hover {
  color: var(--accent);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
@media (max-width: 480px) {
  .nav-menu {
    gap: 1.5rem;
  }
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width var(--t-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.nav-btn {
  background-color: var(--text-light);
  color: var(--bg-dark);
  padding: 0.6rem 1.2rem;
  border-radius: 0;
  font-weight: 600;
  border: 1px solid var(--text-light);
  transition: background-color var(--t-fast), color var(--t-fast), border-color var(--t-fast);
  width: auto;
  max-width: max-content;
  margin: 0 auto;
  text-align: center;
}

.nav-link.nav-btn::after {
  display: none;
}

.nav-link.nav-btn:hover {
  background-color: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

/* Mobile Hamburger Menu button */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1010;
  padding: 0;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--text-light);
  transition: transform var(--t-fast), opacity var(--t-fast), background-color var(--t-fast);
  transform-origin: center;
}

@media (max-width: 768px) {
  .hamburger-btn {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    background-color: rgba(9, 9, 11, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1005;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    transform: translateY(-100%);
    opacity: 0;
    transition: transform var(--t-normal) ease, opacity var(--t-normal) ease;
    pointer-events: none;
  }
  
  .nav-menu .nav-link {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    text-transform: lowercase;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity var(--t-fast) var(--t-fast), transform var(--t-fast) var(--t-fast);
  }
  
  .nav-menu .nav-link::after {
    display: none;
  }
  
  .nav-menu .nav-link.nav-btn {
    border: 1px solid var(--accent);
    background-color: transparent;
    color: var(--accent);
    padding: 0.8rem 2rem;
    width: auto;
    max-width: max-content;
    align-self: center;
    text-align: center;
    line-height: 1.25;
    margin-top: 1.5rem;
    transition: background-color var(--t-fast), color var(--t-fast);
  }
  
  .nav-menu .nav-link.nav-btn:hover {
    background-color: var(--accent);
    color: var(--bg-dark);
  }
  
  /* Opened mobile menu drawer state */
  body.nav-open {
    overflow: hidden;
  }
  
  body.nav-open .nav-menu {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  
  body.nav-open .nav-menu .nav-link {
    opacity: 1;
    transform: translateY(0);
  }
  
  body.nav-open .nav-menu .nav-link:nth-child(1) { transition-delay: 0.15s; }
  body.nav-open .nav-menu .nav-link:nth-child(2) { transition-delay: 0.25s; }
  body.nav-open .nav-menu .nav-link:nth-child(3) { transition-delay: 0.35s; }
  
  /* Morph hamburger lines to X */
  body.nav-open .hamburger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background-color: var(--accent);
  }

  body.nav-open .hamburger-line:nth-child(2) {
    opacity: 0;
  }

  body.nav-open .hamburger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background-color: var(--accent);
  }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
/* Hero Scroll Container for Scrollytelling Pin */
.hero-scroll-container {
  position: relative;
  height: 180vh;
  width: 100%;
}

.video-reveal-anchor {
  position: absolute;
  top: 80vh;
  left: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.hero-section {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--bg-dark);
  z-index: 10;
}

.video-background-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.bg-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(calc(0.28 + var(--hero-scroll-progress, 0) * 0.72)) 
          contrast(calc(1.1 - var(--hero-scroll-progress, 0) * 0.1)) 
          saturate(calc(0.8 + var(--hero-scroll-progress, 0) * 0.2));
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(9, 9, 11, 0.4) 0%, rgba(9, 9, 11, 0.95) 100%);
  z-index: 2;
  opacity: calc(1 - var(--hero-scroll-progress, 0));
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: var(--container-max-width);
  padding: 0 4rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (max-width: 768px) {
  .hero-content {
    padding: 0 1.5rem;
  }
}

.hero-text-wrapper {
  margin-top: auto;
  margin-bottom: auto;
}

.hero-title {
  font-size: clamp(3.5rem, 12vw, 10rem);
  font-weight: 800;
  line-height: 0.85;
  margin-bottom: 1.5rem;
  padding-right: 1.5rem;
  margin-right: 1rem;
  transform: translateY(calc(var(--hero-scroll-progress, 0) * -80px));
  opacity: calc(1 - var(--hero-scroll-progress, 0) * 1.35);
}

.hero-tagline {
  font-size: clamp(1.2rem, 3.5vw, 2.2rem);
  max-width: 750px;
  line-height: 1.25;
  color: var(--text-light);
  font-weight: 400;
  letter-spacing: -0.02em;
  transform: translateY(calc(var(--hero-scroll-progress, 0) * -50px));
  opacity: calc(1 - var(--hero-scroll-progress, 0) * 1.5);
}

.hero-bottom-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  margin-bottom: 3rem;
  width: 100%;
  z-index: 4;
}

/* Sound Toggle Button */
.sound-toggle {
  background-color: rgba(9, 9, 11, 0.6);
  border: 1px solid var(--border-color-bold);
  color: var(--text-light);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: 
    background-color var(--t-fast), 
    border-color var(--t-fast), 
    transform var(--t-fast),
    opacity var(--t-normal);
  
  /* Styled to fade in via fallback variable updates */
  opacity: var(--sound-toggle-opacity, 0);
  pointer-events: var(--sound-toggle-pointer, none);
}

.sound-toggle:hover {
  background-color: var(--accent);
  color: var(--bg-dark);
  border-color: var(--accent);
  transform: scale(1.05);
}

.sound-icon {
  display: block;
}

.hero-scroll-hint {
  margin: 0;
  transform: translateY(calc(var(--hero-scroll-progress, 0) * 30px));
  opacity: 1; /* Keep visible */
}

.scroll-arrow-btn {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.scroll-arrow-btn:hover {
  color: var(--accent);
}

.scroll-arrow-btn:hover .arrow-icon {
  transform: translateY(6px);
}

.arrow-icon {
  transition: transform var(--t-fast);
}

/* Native CSS Scroll-driven animations mapping for modern engines */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: scroll()) and (animation-range: 0% 100%)) {
    @keyframes hero-fade-out-text {
      to {
        opacity: 0;
        transform: translateY(-80px);
      }
    }
    
    @keyframes hero-fade-out-overlay {
      to {
        opacity: 0;
      }
    }
    
    @keyframes logo-fade-in {
      to {
        opacity: 1;
      }
    }

    @keyframes video-reveal {
      to {
        filter: brightness(1) contrast(1) saturate(1);
      }
    }
    
    @keyframes hero-fade-in-sound {
      to {
        opacity: 1;
        pointer-events: auto;
      }
    }

    .hero-title {
      animation: hero-fade-out-text auto linear both;
      animation-timeline: scroll(block root);
      animation-range: 0px 75vh;
    }
    
    .hero-tagline {
      animation: hero-fade-out-text auto linear both;
      animation-timeline: scroll(block root);
      animation-range: 0px 55vh;
    }
    
    .video-overlay {
      animation: hero-fade-out-overlay auto linear both;
      animation-timeline: scroll(block root);
      animation-range: 0px 80vh;
    }

    .header .brand-logo {
      animation: logo-fade-in auto linear both;
      animation-timeline: scroll(block root);
      animation-range: 0px 75vh;
    }

    .bg-video {
      animation: video-reveal auto linear both;
      animation-timeline: scroll(block root);
      animation-range: 0px 80vh;
    }
    
    .sound-toggle {
      animation: hero-fade-in-sound auto linear both;
      animation-timeline: scroll(block root);
      animation-range: 30vh 80vh;
      --sound-toggle-opacity: 0;
      --sound-toggle-pointer: none;
    }
    
    .hero-scroll-hint {
      animation: hero-fade-out-overlay auto linear both;
      animation-timeline: scroll(block root);
      animation-range: 0px 40vh;
    }
  }
}

/* ==========================================================================
   Work Section (Selected Work)
   ========================================================================== */
.work-section {
  padding: 10rem 0;
  background-color: var(--bg-dark);
}

.projects-list {
  display: flex;
  flex-direction: column;
  gap: 12rem;
}

@media (max-width: 992px) {
  .projects-list {
    gap: 8rem;
  }
}

.project-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 6rem;
  align-items: center;
}

.project-card:nth-child(even) {
  grid-template-columns: 1fr 1.2fr;
}

.project-card:nth-child(even) .project-image-wrapper {
  order: 2;
}

.project-card:nth-child(even) .project-info {
  order: 1;
}

/* Modern CSS view timeline animations on scrolling */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    @keyframes project-reveal {
      from {
        opacity: 0;
        transform: translateY(80px) scale(0.95);
      }
    }
    
    .project-card {
      animation: project-reveal auto linear both;
      animation-timeline: view();
      animation-range: entry 10% cover 40%;
    }
  }
}

/* Normal fallback state if javascript is doing it or just raw transition */
.project-card.reveal-active {
  opacity: 1;
  transform: none;
  transition: opacity var(--t-slow), transform var(--t-slow);
}

.project-image-wrapper {
  position: relative;
  overflow: hidden;
  background-color: var(--bg-slate);
  aspect-ratio: 1.15;
  border: 1px solid var(--border-color);
  box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.5);
  transition: border-color var(--t-normal);
}

.project-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.project-card:hover .project-image-wrapper {
  border-color: var(--accent);
}

.project-card:hover .project-img {
  transform: scale(1.04);
}

.project-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.project-num {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--accent);
  font-weight: 800;
  margin-bottom: 1rem;
}

.project-name {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin-bottom: 0.8rem;
  color: var(--text-light);
}

.project-category {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 2rem;
  color: var(--text-light);
}

.project-description {
  font-size: 1.05rem;
  line-height: 1.65;
  margin-bottom: 2.5rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.tag {
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--border-color-bold);
  padding: 0.4rem 1rem;
  border-radius: 0;
  letter-spacing: 0.05em;
  transition: border-color var(--t-fast), color var(--t-fast);
}

.project-card:hover .tag {
  border-color: var(--accent);
}

.tag:hover {
  background-color: var(--accent);
  color: var(--bg-dark);
  border-color: var(--accent);
}

/* Responsiveness for Project Cards */
@media (max-width: 992px) {
  .project-card, .project-card:nth-child(even) {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .project-card:nth-child(even) .project-image-wrapper {
    order: 0;
  }
  
  .project-card:nth-child(even) .project-info {
    order: 0;
  }
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-section {
  padding: 10rem 0;
  background-color: var(--bg-slate);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 8rem;
  align-items: start;
}

@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 5rem;
  }
}

.about-lead {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  line-height: 1.15;
  margin-bottom: 3rem;
  text-transform: none;
  font-weight: 700;
}

.about-paragraph {
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.about-paragraph:last-child {
  margin-bottom: 0;
}

.about-stats-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.stat-card {
  background-color: var(--bg-dark);
  border: 1px solid var(--border-color);
  padding: 3rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  aspect-ratio: 1.1;
  transition: border-color var(--t-normal), transform var(--t-normal);
}

.stat-card:hover {
  border-color: var(--accent);
  transform: translateY(-5px);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-light);
}

@media (max-width: 480px) {
  .about-stats-container {
    grid-template-columns: 1fr;
  }
  .stat-card {
    aspect-ratio: 1.5;
  }
}

/* ==========================================================================
   Contact Form Section
   ========================================================================== */
.contact-section {
  padding: 10rem 0;
  background-color: var(--bg-dark);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 8rem;
}

@media (max-width: 992px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 5rem;
  }
}

.contact-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  margin-top: 1.5rem;
  margin-bottom: 2rem;
}

.contact-desc {
  font-size: 1.1rem;
  line-height: 1.6;
  max-width: 450px;
  margin-bottom: 4rem;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.info-item {
  display: flex;
  flex-direction: column;
}

.info-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.5rem;
}

.info-link {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
}

.info-link:hover {
  color: var(--accent);
}

.info-text {
  font-size: 1.1rem;
  color: var(--text-light);
}

/* Contact Form Styling */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 2.8rem;
  position: relative;
}

.form-row {
  width: 100%;
}

.form-group {
  display: flex;
  flex-direction: column;
  position: relative;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  color: var(--text-light);
  letter-spacing: 0.05em;
}

.field-hint {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-group input, 
.form-group textarea,
.form-group select {
  font-family: var(--font-body);
  width: 100%;
  background-color: transparent;
  border: none;
  border-bottom: 2px solid var(--border-color-bold);
  padding: 0.8rem 0;
  color: var(--text-light);
  font-size: 1.1rem;
  border-radius: 0;
  outline: none;
  transition: border-color var(--t-fast), background-color var(--t-fast);
}

/* Select element styling reset */
.form-group select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%23f4f4f5' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
  background-size: 0.75rem;
  padding-right: 2rem;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #4e4e52;
}

/* Hover/Focus states */
.form-group input:hover,
.form-group textarea:hover,
.form-group select:hover {
  border-bottom-color: var(--text-light);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-bottom-color: var(--accent);
}

/* Error message styling */
.error-msg {
  display: none;
  color: var(--error-color);
  font-size: 0.85rem;
  font-weight: 500;
  margin-top: 0.6rem;
  animation: fadeIn var(--t-fast) forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* Modern Validation Styling: :user-invalid and :user-valid */
.form-group input:user-invalid,
.form-group textarea:user-invalid,
.form-group select:user-invalid,
.form-group input.user-invalid-fallback,
.form-group textarea.user-invalid-fallback,
.form-group select.user-invalid-fallback {
  border-bottom-color: var(--error-color);
  background-color: var(--error-bg);
  padding-left: 0.5rem;
  padding-right: 0.5rem;
}

.form-group:has(input:user-invalid) label,
.form-group:has(textarea:user-invalid) label,
.form-group:has(select:user-invalid) label {
  color: var(--error-color);
}

/* Reveal error message adjacent to user-invalid element */
.form-group input:user-invalid ~ .error-msg,
.form-group textarea:user-invalid ~ .error-msg,
.form-group select:user-invalid ~ .error-msg,
.form-group input.user-invalid-fallback ~ .error-msg,
.form-group textarea.user-invalid-fallback ~ .error-msg,
.form-group select.user-invalid-fallback ~ .error-msg {
  display: block;
}

.form-group input:user-valid,
.form-group textarea:user-valid,
.form-group select:user-valid {
  border-bottom-color: var(--success-color);
}

/* Submit Button */
.submit-btn {
  font-family: var(--font-body);
  background-color: var(--accent);
  color: var(--bg-dark);
  border: none;
  padding: 1.2rem 2.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  cursor: pointer;
  width: fit-content;
  transition: background-color var(--t-fast), transform var(--t-fast);
  margin-top: 1rem;
}

.submit-btn:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}

.submit-btn:active {
  transform: translateY(0);
}

/* Success Message Overlay */
.form-success-alert {
  display: none;
  background-color: var(--bg-slate);
  border: 1px solid var(--accent);
  padding: 2.5rem;
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  z-index: 10;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  animation: fadeIn var(--t-normal) forwards;
}

.form-success-alert.show {
  display: flex;
}

.success-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  background-color: rgba(204, 255, 0, 0.1);
  border: 1px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.success-text h3 {
  font-size: 1.8rem;
  color: var(--text-light);
  margin-bottom: 0.8rem;
}

.success-text p {
  font-size: 1.05rem;
  max-width: 400px;
  color: var(--text-muted);
}

/* ==========================================================================
   Footer Section
   ========================================================================== */
.footer {
  background-color: var(--bg-slate);
  padding: 6rem 0 3rem;
  border-top: 1px solid var(--border-color);
}

.footer-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 4rem;
}

@media (max-width: 768px) {
  .footer-container {
    padding: 0 1.5rem;
  }
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4rem;
}

.footer-logo {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  color: var(--text-light);
}

.footer-links {
  display: flex;
  gap: 3rem;
  list-style: none;
}

.footer-links a {
  font-weight: 500;
  font-size: 1rem;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(244, 244, 245, 0.05);
  padding-top: 3rem;
}

.copyright {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.social-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.social-link {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.social-link:hover {
  color: var(--accent);
}

@media (max-width: 768px) {
  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
    margin-bottom: 3rem;
  }
  
  .footer-links {
    gap: 1.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
    padding-top: 2rem;
  }
  
  .social-links {
    gap: 1.5rem;
  }
}