/* ============================================================
   VÍCTOR SUZUKI · LIGHT MODE RE-DESIGN
   Clarity | Professionalism | Performance
   ============================================================ */

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

:root {
  --bg-white:     #FFFFFF;
  --bg-off:       #F8F9FA;
  --bg-blue:      #002D5C; /* McKinsey Dark Blue */
  --blue-accent:  #0071CE;
  --text-dark:    #1A1A1A;
  --text-gray:    #4D4D4D;
  --text-light:   #B3B3B3;
  --border:       rgba(0,45,92,0.08); /* Sutil blue border */
  
  --ff-serif:     'Playfair Display', serif;
  --ff-sans:      'Inter', sans-serif;
  
  --container:    1100px;
  --ease:         cubic-bezier(0.25, 1, 0.5, 1);
  --transition:   0.6s var(--ease);
}

html { scroll-behavior: smooth; font-size: 16px; scroll-padding-top: 100px; }
body {
  background: var(--bg-white);
  color: var(--text-dark);
  font-family: var(--ff-sans);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* --- SCROLLBAR --- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-off); }
::-webkit-scrollbar-thumb { background: var(--blue-accent); }

/* --- CORE ELEMENTS --- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 2rem; }
.section { padding: 180px 0; } /* ESPACIADOS GENEROSOS */
.bg-light { background: var(--bg-off); }
.bg-blue { background: var(--bg-blue); color: #fff; }

.section-tag {
  display: block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.3em;
  color: var(--blue-accent);
  margin-bottom: 2.5rem;
  text-transform: uppercase;
}
.section-tag.light { color: rgba(255,255,255,0.4); }

.section-title {
  font-family: var(--ff-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  line-height: 1.1;
  color: var(--text-dark);
  margin-bottom: 3rem;
}
.section-title span { color: var(--blue-accent); font-style: italic; }
.section-title.white { color: #fff; }

.section-desc {
  font-size: 1.25rem;
  color: var(--text-gray);
  max-width: 650px;
  margin-bottom: 4rem;
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 2.5rem 0;
  background: transparent;
  transition: var(--transition);
}
#navbar.scrolled {
  padding: 1rem 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--ff-sans);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  color: var(--text-dark);
  text-decoration: none;
}
.logo .dot { color: var(--blue-accent); }

.nav-links { display: flex; list-style: none; gap: 4rem; }
.nav-links a {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-decoration: none;
  transition: var(--transition);
}
.nav-links a:hover { color: var(--blue-accent); }

.nav-cta {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--text-dark);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav-cta span { color: var(--blue-accent); font-size: 1.2rem; }

/* ============================================================
   HERO
   ============================================================ */
#hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #fdfdfd;
}

.hero-image-container {
  position: absolute;
  top: 0; right: 0;
  width: 50%; height: 100%;
  z-index: 1;
}
.hero-photo { width: 100%; height: 100%; object-fit: cover; filter: grayscale(10%); transform: scale(1.1); transition: transform 10s linear; }
.hero-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(to right, #fdfdfd 0%, transparent 100%);
}

.hero-content { 
  position: relative; 
  z-index: 10; 
  width: 50%; 
  padding-top: 25vh; /* Aumentado para evitar solapamiento con nav */
}

.label-reveal { display: block; font-size: 0.75rem; font-weight: 800; letter-spacing: 0.4em; color: var(--blue-accent); margin-bottom: 2.5rem; }

.main-title {
  font-family: var(--ff-serif);
  font-size: clamp(3.5rem, 7vw, 6rem);
  font-weight: 400;
  line-height: 1;
  color: var(--text-dark);
  margin-bottom: 2.5rem;
}
.main-title span { color: var(--blue-accent); font-style: italic; }

.hero-lead { font-size: 1.2rem; color: var(--text-gray); max-width: 500px; margin-bottom: 4rem; line-height: 1.5; }

.hero-buttons { display: flex; gap: 2rem; align-items: center; }

.btn-primary {
  padding: 1.5rem 3.5rem;
  background: var(--blue-accent);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  border-radius: 4px;
  font-size: 0.9rem;
  transition: var(--transition);
}
.btn-primary:hover { transform: translateY(-5px); box-shadow: 0 15px 35px rgba(0,113,206,0.25); }

.btn-outline {
  font-weight: 700;
  text-decoration: none;
  color: var(--text-dark);
  border-bottom: 1px solid var(--text-light);
  padding: 0.5rem 0;
  font-size: 0.9rem;
}
.btn-outline:hover { border-color: var(--blue-accent); color: var(--blue-accent); }

.scroll-down { position: absolute; bottom: 4rem; left: 2rem; display: flex; flex-direction: column; align-items: center; gap: 1rem; }
.scroll-down span { font-size: 0.65rem; font-weight: 800; letter-spacing: 0.3em; color: var(--text-light); transform: rotate(-90deg); margin-bottom: 40px; }
.scroll-down .line { width: 1px; height: 100px; background: var(--text-light); position: relative; overflow: hidden; }
.scroll-down .line::after { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 30%; background: var(--blue-accent); animation: scrollLine 2s infinite var(--ease); }
@keyframes scrollLine { 0% { transform: translateY(-100%); } 100% { transform: translateY(400%); } }

/* ============================================================
   GRID LAYOUTS
   ============================================================ */
.split-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 10rem; align-items: center; }
.split-grid-alt { display: grid; grid-template-columns: 1fr 1.2fr; gap: 10rem; align-items: center; }

.photo-wrapper { border-radius: 8px; overflow: hidden; box-shadow: 0 50px 100px rgba(0,0,0,0.05); }
.side-photo { width: 100%; height: auto; display: block; filter: saturate(0.8); transition: transform 2s var(--ease); }

.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; margin-top: 5rem; border-top: 1px solid var(--border); padding-top: 3rem; }
.stat-num { font-size: 4rem; font-family: var(--ff-serif); color: var(--text-dark); line-height: 1; }
.stat-plus { font-size: 2rem; color: var(--blue-accent); margin-left: 5px; }
.stat-item p { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.2rem; color: var(--text-light); }

/* EXPERTISE CARDS */
.header-center { text-align: center; max-width: 800px; margin: 0 auto 8rem auto; }
.expertise-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3rem; }
.expert-card { background: #fff; padding: 4rem 3.5rem; border: 1px solid var(--border); border-radius: 4px; transition: var(--transition); }
.expert-card:hover { transform: translateY(-15px); border-color: var(--blue-accent); box-shadow: 0 40px 80px rgba(0,0,0,0.04); }
.card-num { font-family: var(--ff-serif); font-size: 1rem; color: var(--blue-accent); margin-bottom: 2.5rem; opacity: 0.4; }
.expert-card h3 { font-family: var(--ff-serif); font-size: 1.8rem; margin-bottom: 1.5rem; }
.expert-card p { color: var(--text-gray); font-size: 0.95rem; line-height: 1.7; }

/* TIMELINE */
.timeline { display: flex; flex-direction: column; gap: 1px; background: var(--border); margin-top: 4rem; }
.tl-item { display: grid; grid-template-columns: 180px 1fr; background: #fff; padding: 3.5rem 0; }
.year { font-family: var(--ff-serif); font-size: 1.5rem; color: var(--blue-accent); opacity: 0.6; }
.tl-content h4 { font-family: var(--ff-sans); font-size: 1.25rem; margin-bottom: 0.5rem; }
.tl-content p { color: var(--text-gray); }

/* INSIGHTS */
.articles-row { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-top: 6rem; text-align: left; }
.article-box { display: block; background: #fff; padding: 4.5rem; text-decoration: none; border-radius: 4px; transition: var(--transition); }
.article-box:hover { transform: translateY(-15px); box-shadow: 0 40px 80px rgba(0,0,0,0.25); }
.art-tag { display: block; font-size: 0.7rem; font-weight: 800; letter-spacing: 0.25em; color: var(--blue-accent); margin-bottom: 2rem; }
.article-box h3 { font-family: var(--ff-serif); font-size: 2rem; color: var(--text-dark); margin-bottom: 1.5rem; line-height: 1.2; }
.article-box p { color: var(--text-gray); margin-bottom: 3rem; }
.art-link { font-weight: 800; font-size: 0.8rem; color: var(--text-dark); }

/* CONTACT */
.container-narrow { max-width: 850px; }
.contact-card { background: var(--bg-off); padding: 7rem; border-radius: 8px; text-align: center; }
.clean-form { margin-top: 5rem; display: flex; flex-direction: column; gap: 4rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.clean-form input, .clean-form textarea {
  width: 100%; background: transparent; border: none; border-bottom: 1px solid var(--border);
  padding: 1rem 0; font-family: var(--ff-sans); font-size: 1.1rem; outline: none; transition: var(--transition);
}
.clean-form input:focus, .clean-form textarea:focus { border-color: var(--blue-accent); }
.clean-form button {
  width: fit-content; align-self: center; background: var(--text-dark); color: #fff;
  border: none; padding: 1.5rem 4rem; font-weight: 800; font-size: 0.85rem; border-radius: 4px;
  cursor: pointer; transition: var(--transition); text-transform: uppercase; letter-spacing: 0.1em;
}
.clean-form button:hover { transform: translateY(-5px); background: var(--blue-accent); box-shadow: 0 20px 40px rgba(0,113,206,0.2); }
.contact-info { margin-top: 5rem; display: flex; justify-content: center; gap: 4rem; padding-top: 3rem; border-top: 1px solid var(--border); }
.contact-info a { color: var(--text-gray); text-decoration: none; font-size: 1rem; font-weight: 600; }

/* FOOTER */
.brief-footer { padding: 5rem 0; border-top: 1px solid var(--border); }
.footer-flex { display: flex; justify-content: space-between; align-items: center; font-size: 0.8rem; color: var(--text-light); font-weight: 600; letter-spacing: 0.1em; }

/* REVEAL ANIMATIONS */
.reveal-left { opacity: 0; transform: translateX(-80px); }
.reveal-right { opacity: 0; transform: translateX(80px); }
.reveal-up { opacity: 0; transform: translateY(80px); }
.scale-reveal { opacity: 0; transform: scale(0.9); }

.visible { opacity: 1; transform: translate(0,0) scale(1); transition: opacity 1.2s var(--ease), transform 1.2s var(--ease); }

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
  .section { padding: 100px 0; }
  .split-grid, .split-grid-alt { grid-template-columns: 1fr; gap: 5rem; }
  .hero-image-container { display: none; }
  .hero-content { width: 100%; text-align: center; }
  .hero-buttons { justify-content: center; }
  .expertise-row, .articles-row, .form-row { grid-template-columns: 1fr; }
  .tl-item { grid-template-columns: 1fr; gap: 1rem; }
  .nav-links { display: none; }
  .contact-card { padding: 3rem; }
}