/* ==========================================================================
   DESIGN SYSTEM - Variable Definitions (Dark/Light Modes)
   ========================================================================== */

:root {
  /* Dark Theme Variables (Default) */
  --bg-color: #040404;
  --text-color: #e5e5e5;
  --text-muted: #8e8e8f;
  --accent-color: #89bbea;
  --accent-dark: #63a4fe;
  --logo-text: #ffffff;
  --border-color: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.15);
  
  /* Glassmorphism Variables (High Realism & Depth) */
  --card-bg: rgba(10, 10, 10, 0.55);
  --card-bg-hover: rgba(20, 20, 20, 0.7);
  --header-bg: rgba(4, 4, 4, 0.7);
  --glow-color: rgba(106, 228, 255, 0.12);
  --input-bg: rgba(10, 10, 10, 0.8);
  --input-focus-border: rgba(137, 187, 234, 0.4);
  
  /* Shared values */
  --transition-ease: cubic-bezier(0.25, 1, 0.5, 1);
  --font-title: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-body: 'Rubik', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Light Theme Variables Switch */
html.light-theme {
  --bg-color: #ffffff;
  --text-color: #1a1a1a;
  --text-muted: #666666;
  --accent-color: #5d8ab2; /* Darkened by ~15% for AAA accessibility contrast */
  --accent-dark: #3a72b0;
  --logo-text: #666666;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.16);
  
  --card-bg: rgba(255, 255, 255, 0.45);
  --card-bg-hover: rgba(245, 247, 250, 0.75);
  --header-bg: rgba(255, 255, 255, 0.7);
  --glow-color: rgba(93, 138, 178, 0.06);
  --input-bg: rgba(250, 250, 250, 0.85);
  --input-focus-border: rgba(93, 138, 178, 0.5);
}

/* ==========================================================================
   RESET & SYSTEM WRAPPERS (User-provided loop video style integration)
   ========================================================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.8s var(--transition-ease), color 0.8s var(--transition-ease);
}

body {
  font-family: 'Rubik', sans-serif;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background-color: var(--bg-color);
  overflow-x: hidden;
  position: relative;
  transition: background-color 0.8s var(--transition-ease);
}

/* 1. EL DEGRADADO ORIGINAL */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 15% 15%, #89bbea2f, transparent 60%);
  z-index: 1;
  pointer-events: none;
  mix-blend-mode: screen;
  transition: background 0.8s var(--transition-ease);
}

html.light-theme body::before {
  background: radial-gradient(circle at 15% 15%, rgba(93, 138, 178, 0.15), transparent 60%);
  mix-blend-mode: multiply;
}

/* EL GRANO (RUIDO) */
body::after {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  background-repeat: repeat;
  opacity: 0.4; 
  z-index: 12;
  pointer-events: none;
  mix-blend-mode: multiply;
  transition: opacity 0.8s var(--transition-ease);
}

html.light-theme body::after {
  opacity: 0.25;
  mix-blend-mode: overlay;
}

/* Fixed loop video background styling */
#background-video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15; 
  z-index: 0;
  filter: grayscale(100%) contrast(150%) brightness(80%);
  pointer-events: none;
  transition: opacity 0.8s var(--transition-ease), filter 0.8s var(--transition-ease);
}

html.light-theme #background-video {
  opacity: 0.08;
  filter: grayscale(100%) contrast(110%) brightness(140%);
}

a {
  color: inherit;
  text-decoration: none;
}

/* ==========================================================================
   INTERACTIVE ELEMENTS - Realism & Depth Glassmorphism
   ========================================================================== */

.glass-card {
  background-color: var(--card-bg);
  backdrop-filter: blur(25px) saturate(220%);
  -webkit-backdrop-filter: blur(25px) saturate(220%);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
  transition: border-color 1s cubic-bezier(0.25, 1, 0.5, 1), 
              background-color 1s cubic-bezier(0.25, 1, 0.5, 1), 
              transform 1s cubic-bezier(0.25, 1, 0.5, 1), 
              box-shadow 1s cubic-bezier(0.25, 1, 0.5, 1);
}

.glass-card:hover {
  transform: translateY(-6px) scale(1.015);
  border-color: rgba(106, 228, 255, 0.35);
  background-color: var(--card-bg-hover);
  box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.55), 0 0 30px var(--glow-color);
}

html.light-theme .glass-card:hover {
  border-color: rgba(93, 138, 178, 0.4);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.1), 0 0 20px var(--glow-color);
}

/* Diagonal linear gradient for titles */
h3.card-title,
h3.how-col-title,
h3.timeline-title,
h3.ikigai-title,
h3.contact-headline {
  background: linear-gradient(135deg, #6ae4ff, #63a4fe);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

html.light-theme h3.card-title,
html.light-theme h3.how-col-title,
html.light-theme h3.timeline-title,
html.light-theme h3.ikigai-title,
html.light-theme h3.contact-headline {
  background: linear-gradient(135deg, #3a72b0, #5d8ab2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   FLOATING PROGRESS LINE
   ========================================================================== */

.progress-bar-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: rgba(255, 255, 255, 0.05);
  z-index: 10001;
  pointer-events: none;
}

.progress-bar-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-dark));
  box-shadow: 0 0 8px var(--accent-color);
  transition: width 0.1s ease-out;
}

/* ==========================================================================
   HEADER & NAVIGATION SYSTEM
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 90px;
  background-color: var(--header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: background-color 0.8s var(--transition-ease), border-color 0.8s var(--transition-ease);
}

.header-container {
  max-width: 1400px;
  height: 100%;
  margin: 0 auto;
  padding: 0 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  z-index: 1001;
}

.site-logo {
  height: 67px;
  width: auto;
}

.logo-text-group path {
  fill: var(--logo-text);
  transition: fill 0.8s var(--transition-ease);
}

.nav-desktop {
  display: flex;
  align-items: center;
  margin-left: auto;
  margin-right: 3rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2.2rem;
}

.nav-link {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 32px;
  color: var(--text-muted);
  font-family: var(--font-title);
  font-size: 0.70rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  overflow: visible;
  transition: color 0.4s var(--transition-ease);
}

.nav-link span {
  display: block;
  transition: transform 0.5s var(--transition-ease), 
              filter 0.5s var(--transition-ease), 
              opacity 0.5s var(--transition-ease);
}

.nav-link-hover {
  position: absolute;
  transform: translateY(100%);
  opacity: 0;
  filter: blur(6px);
  white-space: nowrap;
  font-weight: 700;
  color: var(--accent-color);
}

.nav-link:hover {
  color: var(--text-color);
}

.nav-link:hover .nav-link-default {
  transform: translateY(-100%);
  opacity: 0;
  filter: blur(6px);
}

.nav-link:hover .nav-link-hover {
  transform: translateY(0);
  opacity: 1;
  filter: blur(0);
}

.nav-link.active-section {
  color: var(--text-color);
}

.nav-link.active-section::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 30px;
  background: linear-gradient(to bottom, var(--accent-color), transparent);
  border-radius: 2px;
  pointer-events: none;
}

/* Actions Panel */
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-btn,
.theme-toggle-btn {
  border-radius: 22px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-color);
  font-family: var(--font-title);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: background-color 0.4s var(--transition-ease), 
              border-color 0.4s var(--transition-ease),
              transform 0.4s var(--transition-ease),
              color 0.4s var(--transition-ease);
}

html.light-theme .lang-btn,
html.light-theme .theme-toggle-btn {
  background: rgba(0, 0, 0, 0.02);
}

.lang-btn {
  padding: 0.5rem 1.1rem;
}

.theme-toggle-btn {
  width: 38px;
  height: 38px;
}

.lang-btn:hover,
.theme-toggle-btn:hover {
  background-color: rgba(106, 228, 255, 0.08);
  border-color: var(--accent-color);
  transform: translateY(-1px);
}

html.light-theme .lang-btn:hover,
html.light-theme .theme-toggle-btn:hover {
  background-color: rgba(93, 138, 178, 0.08);
}

/* Centered sequential dropdown */
.lang-selector {
  position: relative;
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  background-color: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 0.5rem 0;
  display: flex;
  flex-direction: column;
  min-width: 130px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
  z-index: 1002;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--transition-ease), 
              transform 0.35s var(--transition-ease), 
              visibility 0.35s,
              background-color 0.8s var(--transition-ease),
              border-color 0.8s var(--transition-ease);
}

html.light-theme .lang-dropdown {
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.lang-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.lang-option {
  background: none;
  border: none;
  color: var(--text-muted);
  text-align: center;
  padding: 0.6rem 1rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  cursor: pointer;
  width: 100%;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s var(--transition-ease), 
              transform 0.3s var(--transition-ease),
              color 0.3s ease;
}

.lang-option:hover {
  color: var(--text-color);
  background-color: rgba(106, 228, 255, 0.05);
}

html.light-theme .lang-option:hover {
  background-color: rgba(93, 138, 178, 0.05);
}

.lang-option.active {
  color: var(--accent-color);
  font-weight: 700;
}

.lang-dropdown.show .lang-option:nth-child(1) { transition-delay: 0.04s; opacity: 1; transform: translateY(0); }
.lang-dropdown.show .lang-option:nth-child(2) { transition-delay: 0.09s; opacity: 1; transform: translateY(0); }
.lang-dropdown.show .lang-option:nth-child(3) { transition-delay: 0.14s; opacity: 1; transform: translateY(0); }
.lang-dropdown.show .lang-option:nth-child(4) { transition-delay: 0.19s; opacity: 1; transform: translateY(0); }

.lang-dropdown .lang-option:nth-child(1) { transition-delay: 0.15s; }
.lang-dropdown .lang-option:nth-child(2) { transition-delay: 0.10s; }
.lang-dropdown .lang-option:nth-child(3) { transition-delay: 0.05s; }
.lang-dropdown .lang-option:nth-child(4) { transition-delay: 0.00s; }

html.light-theme .theme-toggle-btn .sun-icon { display: none; }
html.light-theme .theme-toggle-btn .moon-icon { display: block; }
html.dark-theme .theme-toggle-btn .sun-icon { display: block; }
html.dark-theme .theme-toggle-btn .moon-icon { display: none; }

.burger-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 16px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 10000;
}

.burger-bar {
  width: 100%;
  height: 1.5px;
  background-color: var(--text-color);
  transition: transform 0.4s var(--transition-ease), opacity 0.4s var(--transition-ease), background-color 0.8s var(--transition-ease);
}

.burger-menu-btn.open .line-1 { transform: translateY(7px) rotate(45deg); }
.burger-menu-btn.open .line-2 { opacity: 0; }
.burger-menu-btn.open .line-3 { transform: translateY(-7.5px) rotate(-45deg); }

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-color);
  z-index: 999;
  display: flex;
  justify-content: center;
  align-items: center;
  transform: translateY(-100%);
  transition: transform 0.6s var(--transition-ease), background-color 0.8s var(--transition-ease);
}

.mobile-menu-overlay.open { transform: translateY(0); }
.nav-mobile { text-align: center; }
.nav-links-mobile { display: flex; flex-direction: column; list-style: none; gap: 2rem; }

.mobile-nav-link {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 48px;
  overflow: hidden;
  color: var(--text-muted);
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.mobile-nav-link span {
  display: block;
  transition: transform 0.5s var(--transition-ease), 
              filter 0.5s var(--transition-ease), 
              opacity 0.5s var(--transition-ease);
}

.mobile-nav-link-hover {
  position: absolute;
  transform: translateY(100%);
  opacity: 0;
  filter: blur(6px);
  color: var(--accent-color);
}

.mobile-nav-link:hover .nav-link-default {
  transform: translateY(-100%);
  opacity: 0;
  filter: blur(6px);
}

.mobile-nav-link:hover .nav-link-hover {
  transform: translateY(0);
  opacity: 1;
  filter: blur(0);
}

/* ==========================================================================
   HERO & HERO VIDEO WRAPPER
   ========================================================================== */

.hero-section {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 180px 0 100px; 
  z-index: 5;
}

.hero-video-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 0px !important;
  border: none !important;
  margin: 0 !important;
  box-shadow: none !important;
  overflow: hidden;
  z-index: 1;
}

.hero-video-container {
  width: 100%;
  height: 100%;
  position: relative;
}

/* TOTALMENTE VISIBLE: Opacidad completa en ambos modos, sin filtros erróneos */
.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 1 !important; 
  filter: none !important; 
  transition: filter 0.8s var(--transition-ease);
}

html.light-theme .hero-video {
  filter: contrast(105%) brightness(102%) !important; /* Mantiene la nitidez limpia adaptada al fondo claro */
}

.hero-content-container {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 1000px;
  padding: 0 2rem;
}

.hero-title-role {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(2rem, 5.5vw, 4rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 2rem;
  background: linear-gradient(135deg, #ffffff 40%, #6ae4ff 75%, #63a4fe);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: none;
}

html.light-theme .hero-title-role {
  background: linear-gradient(135deg, #1a1a1a 40%, #3a72b0 75%, #5d8ab2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-slogan {
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic;
  font-weight: 500;
  font-size: clamp(1.4rem, 3.5vw, 2.3rem);
  background: linear-gradient(135deg, #f3f3f3 30%, #aedefc 80%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 1.5rem;
  margin-bottom: 3.5rem;
  text-shadow: none;
}

html.light-theme .hero-slogan {
  background: linear-gradient(135deg, #2b2b2b 30%, #3a72b0 80%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.scroll-indicator {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  position: relative;
  cursor: pointer;
  color: var(--accent-color);
  transition: color 0.4s var(--transition-ease);
}

.scroll-arrow-svg {
  width: 32px;
  height: 32px;
  animation: arrowBounce 2s infinite var(--transition-ease);
}

@keyframes arrowBounce {
  0% { transform: translateY(-8px); opacity: 0; }
  50% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(8px); opacity: 0; }
}

/* ==========================================================================
   SECTIONS GLOBAL LAYOUTS & REVEALS
   ========================================================================== */

.section-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 80px 2.5rem; 
  position: relative;
  z-index: 5;
}

.section-header {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 2rem;
  margin-bottom: 4rem;
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  padding-left: calc(50vw - 50% + 2.5rem);
  padding-right: calc(50vw - 50% + 2.5rem);
  background: transparent !important;
}

.section-header::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100vw;
  height: 1px;
  background-color: var(--border-color);
  transition: background-color 0.8s var(--transition-ease);
}

.section-title {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--text-color);
  transition: color 0.8s var(--transition-ease);
}

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1.2s var(--transition-ease), transform 1.2s var(--transition-ease);
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   SECTION 1: WHAT WE DO (SERVICES)
   ========================================================================== */

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  margin-bottom: 6rem;
}

.service-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.card-glow-element {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), var(--glow-color) 0%, transparent 60%);
  opacity: 0;
  pointer-events: none;
  z-index: -1;
  transition: opacity 0.5s var(--transition-ease);
}

.service-card:hover .card-glow-element {
  opacity: 1;
}

.card-icon-wrapper {
  color: var(--accent-color);
  background-color: var(--border-color);
  padding: 1rem;
  border-radius: 12px;
  margin-bottom: 2rem;
  transition: transform 0.5s var(--transition-ease), color 0.5s var(--transition-ease), background-color 0.8s var(--transition-ease);
}

.service-card:hover .card-icon-wrapper {
  transform: scale(1.05);
  color: var(--accent-dark);
}

.card-title {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 500;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.card-description {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  transition: color 0.8s var(--transition-ease);
}

.impact-history-block {
  text-align: center;
  border-top: 1px solid var(--border-color);
  padding-top: 5rem;
  transition: border-color 0.8s var(--transition-ease);
}

.impact-title {
  font-family: var(--font-title);
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.impact-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 600px;
  margin: 0 auto 3rem;
  transition: color 0.8s var(--transition-ease);
}

.brands-ticker {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--text-color);
  transition: color 0.8s var(--transition-ease);
}

.brand-item {
  letter-spacing: 0.1em;
  opacity: 0.65;
  transition: opacity 0.4s var(--transition-ease), color 0.4s var(--transition-ease);
}

.brand-item:hover {
  opacity: 1;
  color: var(--accent-color);
}

.brand-dot {
  color: var(--accent-color);
  opacity: 0.5;
}

/* ==========================================================================
   SECTION 2: HOW WE WORK (METHODOLOGY)
   ========================================================================== */

.how-philosophy-wrapper {
  max-width: 900px;
  margin: 0 auto 5rem;
  text-align: center;
}

.how-quote {
  font-family: var(--font-title);
  font-size: clamp(1.2rem, 2.5vw, 1.8rem);
  font-weight: 300;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--text-color);
  border-left: none;
  padding: 0;
  position: relative;
  transition: color 0.8s var(--transition-ease);
}

.how-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 6rem;
}

.how-column {
  display: flex;
  flex-direction: column;
  padding: 1.5rem !important;
}

.how-col-num {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 0.6rem;
  letter-spacing: 0.05em;
  transition: color 0.8s var(--transition-ease);
}

.how-col-title {
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic;
  font-weight: 500;
  font-size: 1.35rem;
  margin-bottom: 1.2rem;
  line-height: 1.3;
}

.how-col-subtitle {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
  line-height: 1.4;
  transition: color 0.8s var(--transition-ease);
}

.how-col-text {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  transition: color 0.8s var(--transition-ease);
}

.soft-skills-block {
  border: none;
  border-radius: 0;
  background: transparent;
  padding: 0;
}

.soft-skills-title {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 3rem;
  text-align: center;
  letter-spacing: 0.05em;
  color: var(--text-color);
  transition: color 0.8s var(--transition-ease);
}

.soft-skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.soft-skills-grid :nth-child(4) { grid-column: span 1; }
.soft-skills-grid :nth-child(5) { grid-column: span 2; }

.soft-skill-item.glass-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 2rem;
}

.skill-icon-container {
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.soft-skill-name {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--text-color);
  transition: color 0.8s var(--transition-ease);
}

.soft-skill-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
  transition: color 0.8s var(--transition-ease);
}

/* ==========================================================================
   SECTION 3: WHO I AM (BIOGRAPHY & TIMELINE)
   ========================================================================== */

.bio-intro-container {
  max-width: 800px;
  margin: 0 auto 6rem;
  text-align: center;
}

.bio-tagline {
  font-family: var(--font-title);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 500;
  margin-bottom: 2rem;
  color: var(--accent-color);
  transition: color 0.8s var(--transition-ease);
}

.bio-intro-text {
  font-family: Georgia, serif;
  font-style: italic;
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  line-height: 1.8;
  color: var(--text-muted);
  transition: color 0.8s var(--transition-ease);
}

.timeline-container {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 0;
}

.timeline-line {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background-color: var(--border-color);
  z-index: 1;
  transition: background-color 0.8s var(--transition-ease);
}

.timeline-progress-fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(to bottom, #6ae4ff, #63a4fe);
  box-shadow: 0 0 10px #6ae4ff;
  transition: height 0.1s ease-out;
}

html.light-theme .timeline-progress-fill {
  background: linear-gradient(to bottom, #3a72b0, #5d8ab2);
  box-shadow: 0 0 6px rgba(58, 114, 176, 0.3);
}

.timeline-item {
  position: relative;
  width: 50%;
  margin-bottom: 4rem;
  z-index: 2;
}

.timeline-item:last-child { margin-bottom: 0; }
.timeline-item:nth-child(even) { margin-left: 50%; padding-left: 3.5rem; }
.timeline-item:nth-child(odd) { margin-left: 0; padding-right: 3.5rem; text-align: right; }

.timeline-dot {
  position: absolute;
  top: 28px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--bg-color);
  border: 2px solid var(--border-color);
  z-index: 5;
  transition: background-color 0.6s var(--transition-ease), 
              border-color 0.6s var(--transition-ease), 
              box-shadow 0.6s var(--transition-ease);
}

.timeline-item:nth-child(even) .timeline-dot { left: -6px; }
.timeline-item:nth-child(odd) .timeline-dot { right: -6px; }
.timeline-content { padding: 2rem; }

.timeline-date {
  font-family: var(--font-title);
  font-size: 0.9rem;
  font-weight: 700;
  background: linear-gradient(135deg, #6ae4ff, #63a4fe);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  margin-bottom: 0.8rem;
  letter-spacing: 0.05em;
}

html.light-theme .timeline-date {
  background: linear-gradient(135deg, #3a72b0, #5d8ab2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.timeline-title {
  font-family: var(--font-title);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.timeline-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  transition: color 0.8s var(--transition-ease);
}

.timeline-item.timeline-active .timeline-dot {
  background-color: var(--accent-color);
  border-color: var(--accent-dark);
  box-shadow: 0 0 10px var(--accent-color);
}

.timeline-item.timeline-active .timeline-content {
  border-color: rgba(106, 228, 255, 0.35);
  background-color: var(--card-bg-hover);
}

html.light-theme .timeline-item.timeline-active .timeline-content {
  border-color: rgba(93, 138, 178, 0.4);
}

/* ==========================================================================
   SECTION 4: WHY I’M DOING THIS (IKIGAI)
   ========================================================================== */

.why-motto-container {
  max-width: 900px;
  margin: 0 auto 5rem;
  text-align: center;
}

.why-motto {
  font-family: Georgia, serif;
  font-style: italic;
  font-weight: bold;
  font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  line-height: 1.5;
  letter-spacing: 0.03em;
  color: var(--text-color);
  transition: color 0.8s var(--transition-ease);
}

.ikigai-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.ikigai-quadrant {
  display: flex;
  flex-direction: column;
}

.quadrant-border-highlight {
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--accent-color), transparent);
  opacity: 0.4;
  transition: opacity 0.5s var(--transition-ease);
}

.ikigai-quadrant:hover .quadrant-border-highlight {
  opacity: 1;
}

.ikigai-title {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.ikigai-subtitle {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color 0.8s var(--transition-ease);
}

.ikigai-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  transition: color 0.8s var(--transition-ease);
}

/* ==========================================================================
   SECTION 5: WHEN WE TALK (CONTACT & FORM)
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  align-items: start;
}

.contact-intro {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-headline {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.contact-subtext {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 3.5rem;
  transition: color 0.8s var(--transition-ease);
}

.social-links {
  display: flex;
  justify-content: flex-start;
  gap: 25px;
  opacity: 1; 
}

.social-item {
  opacity: 0;
  animation: fadeInIcon 1s forwards ease-out;
}

.social-item:nth-child(1) { animation-delay: 0.5s; }
.social-item:nth-child(2) { animation-delay: 0.7s; }
.social-item:nth-child(3) { animation-delay: 0.9s; }
.social-item:nth-child(4) { animation-delay: 1.11s; }

.social-icon {
  font-size: 24px;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 50%;
  border: 1px solid var(--accent-dark); 
  background: rgba(255, 255, 255, 0.03);
  position: relative;
  overflow: hidden; 
  transition: transform 0.9s cubic-bezier(0.25, 1, 0.5, 1), 
              background 0.9s ease, 
              border-color 0.9s ease, 
              box-shadow 1.7s ease;
}

html.light-theme .social-icon {
  background: rgba(0, 0, 0, 0.02);
}

.social-icon i {
  line-height: 48px;
  background: linear-gradient(331deg, #6ae4ff, #63a4fe);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

html.light-theme .social-icon i {
  background: linear-gradient(331deg, #3a72b0, #5d8ab2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.social-icon:hover {
  transform: translateY(-2.5px);
  background: rgba(106, 228, 255, 0.1);
  border-color: rgba(106, 228, 255, 0.8);
  box-shadow: 0 5px 15px rgba(99, 164, 254, 0.3);
}

html.light-theme .social-icon:hover {
  background: rgba(93, 138, 178, 0.1);
  border-color: rgba(58, 114, 176, 0.8);
  box-shadow: 0 5px 15px rgba(58, 114, 176, 0.2);
}

@keyframes fadeInIcon {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.contact-form-wrapper {
  padding: 2.5rem;
}

.contact-form-container {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 2.5rem;
  align-items: start;
}

.contact-photo {
  width: 230px;
  height: 460px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  display: block;
  transition: border-color 0.8s var(--transition-ease), background-color 0.8s var(--transition-ease);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  position: relative;
}

.form-group label {
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-color);
  transition: color 0.8s var(--transition-ease);
}

.form-group input,
.form-group textarea {
  background-color: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-color);
  padding: 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 300;
  width: 100%;
  transition: border-color 0.4s var(--transition-ease), 
              background-color 0.4s var(--transition-ease), 
              box-shadow 0.4s var(--transition-ease),
              color 0.8s var(--transition-ease);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--input-focus-border);
  background-color: var(--bg-color);
  box-shadow: 0 0 15px rgba(137, 187, 234, 0.08);
}

html.light-theme .form-group input:focus,
html.light-theme .form-group textarea:focus {
  box-shadow: 0 0 15px rgba(93, 138, 178, 0.08);
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: rgba(239, 68, 68, 0.5) !important;
}

.field-error-msg {
  font-size: 0.75rem;
  color: #ef4444;
  margin-top: 0.2rem;
  display: none;
}

.submit-btn {
  background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
  border: none;
  border-radius: 8px;
  color: #ffffff;
  padding: 1.1rem;
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform 0.4s var(--transition-ease), 
              box-shadow 0.4s var(--transition-ease), 
              filter 0.4s var(--transition-ease);
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px var(--glow-color);
  filter: brightness(1.05);
}

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

@media (max-width: 992px) {
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .contact-form-container { grid-template-columns: 1fr; }
  .contact-photo { width: 100%; height: 300px; }
}