/*==================================================
ROOT
==================================================*/

:root{
    --navy:#081A2E;
    --blue:#2563EB;
    --blue-light:#4F8CFF;
    --white:#FFFFFF;
    --light:#F8FAFC;
    --gray:#64748B;
    --text:#334155;
    --line:#E5E7EB;
    --radius:22px;
    --container:1320px;
    --transition:.35s cubic-bezier(.4,0,.2,1);
    --section:120px;
}

/*==================================================
RESET
==================================================*/

*{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{ font-family:'Inter',sans-serif; background:var(--white); color:var(--text); overflow-x:hidden; }
img{ display:block; width:100%; user-select:none; -webkit-user-drag:none; }
a{ text-decoration:none; color:inherit; }
button{ font-family:inherit; cursor:pointer; }
input, textarea, select{ font-family:inherit; }
section{ padding:var(--section) 0; }
.container{ width:min(92%,var(--container)); margin:auto; }

/*==================================================
TYPOGRAPHY
==================================================*/

.section-tag{ display:inline-block; margin-bottom:18px; color:var(--blue); font-size:13px; letter-spacing:4px; font-weight:700; text-transform:uppercase; }
.section-heading{ margin-bottom:70px; }
.section-heading.center{ text-align:center; max-width:850px; margin-inline:auto; margin-bottom:80px; }
.section-heading h2{ font-family:'Playfair Display',serif; font-size:clamp(44px,5vw,72px); line-height:1; color:var(--navy); margin-bottom:24px; }
.section-heading p{ font-size:19px; line-height:1.9; color:var(--gray); }
.lead{ font-size:22px; line-height:1.8; }

/*==================================================
BUTTONS
==================================================*/

.btn{ display:inline-flex; align-items:center; justify-content:center; gap:10px; padding:18px 34px; border-radius:999px; font-size:15px; font-weight:600; transition:var(--transition); cursor:pointer; }
.btn-primary{ background:linear-gradient(135deg, #2563EB, #3B82F6); color:white; border:none; box-shadow:0 18px 45px rgba(37,99,235,.28); }
.btn-primary:hover{ transform:translateY(-5px); box-shadow:0 28px 60px rgba(37,99,235,.40); }
.btn-secondary{ background:rgba(255,255,255,.05); color:white; border:1px solid rgba(255,255,255,.25); backdrop-filter:blur(15px); }
.btn-secondary:hover{ background:rgba(255,255,255,.14); border-color:white; transform:translateY(-5px); }
.header-btn{ display:inline-flex; align-items:center; justify-content:center; padding:15px 28px; border-radius:999px; background:var(--blue); color:white; font-size:14px; font-weight:700; transition:var(--transition); }
.header-btn:hover{ background:var(--blue-light); transform:translateY(-3px); }

/*==================================================
HEADER
==================================================*/

.header{ position:fixed; top:0; left:0; width:100%; z-index:9999; background:linear-gradient(to bottom, rgba(8,26,46,.45), rgba(8,26,46,0)); transition:.4s; }
.header.scrolled{ background:rgba(8,26,46,.94); backdrop-filter:blur(18px); box-shadow:0 8px 35px rgba(0,0,0,.18); }
.header .container{ height:82px; display:flex; align-items:center; justify-content:space-between; }
.logo{ display:flex; align-items:center; }
.logo img{ width:165px; height:auto; display:block; transition:.35s ease; }
.logo:hover img{ transform:scale(1.04); }
.navbar{ display:flex; align-items:center; gap:34px; }
.navbar a{ position:relative; padding:8px 0; color:white; font-size:15px; font-weight:500; transition:var(--transition); }
.navbar a::after{ content:""; position:absolute; left:0; bottom:-8px; width:0; height:2px; background:var(--blue-light); transition:var(--transition); }
.navbar a:hover{ color:var(--blue-light); }
.navbar a:hover::after{ width:100%; }
.menu-toggle{ display:none; width:48px; height:48px; border:none; background:none; flex-direction:column; justify-content:center; gap:6px; }
.menu-toggle span{ width:28px; height:2px; background:white; border-radius:20px; transition:var(--transition); }

/*==================================================
HERO
==================================================*/

#hero{ position:relative; min-height:100vh; display:flex; align-items:center; overflow:hidden; color:var(--white); }
.hero-background{ position:absolute; inset:0; z-index:0; }
.hero-background img{ width:100%; height:100%; object-fit:cover; object-position:center; animation:heroZoom 18s ease-in-out infinite alternate; }
@keyframes heroZoom{ 0%{ transform:scale(1); } 100%{ transform:scale(1.08); } }
.hero-gradient{ position:absolute; inset:0; background: linear-gradient(90deg, rgba(5,18,33,.92) 0%, rgba(5,18,33,.76) 30%, rgba(5,18,33,.32) 65%, rgba(5,18,33,.10) 100%), linear-gradient(to top, rgba(5,18,33,.45), transparent 45%); }
#hero .container{ position:relative; z-index:2; }
.hero-grid{ display:grid; grid-template-columns:1.15fr .85fr; align-items:center; gap:60px; min-height:100vh; }
.hero-left{ max-width:720px; }
.hero-tag{ display:inline-flex; align-items:center; padding:10px 18px; border-radius:999px; background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.18); backdrop-filter:blur(14px); font-size:12px; letter-spacing:3px; font-weight:700; text-transform:uppercase; margin-bottom:28px; }
.hero-left h1{ font-family:'Playfair Display',serif; font-size:clamp(58px,6vw,88px); line-height:.93; font-weight:600; margin-bottom:28px; letter-spacing:-2px; }
.hero-left h1 span{ display:block; color:#A8C7FF; }
.hero-left p{ max-width:590px; font-size:20px; line-height:1.9; color:rgba(255,255,255,.82); margin-bottom:34px; }
.hero-buttons{ display:flex; gap:18px; flex-wrap:wrap; margin-bottom:60px; }
.hero-highlights{ display:flex; gap:50px; flex-wrap:wrap; }
.highlight{ display:flex; flex-direction:column; }
.highlight strong{ font-size:34px; font-weight:700; color:white; margin-bottom:6px; }
.highlight span{ font-size:14px; letter-spacing:1px; text-transform:uppercase; color:rgba(255,255,255,.72); }
.hero-right{ display:flex; justify-content:flex-end; align-items:center; }
.hero-card{ width:100%; max-width:380px; padding:38px; border-radius:var(--radius); background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.12); backdrop-filter:blur(20px); box-shadow:0 35px 80px rgba(0,0,0,.25); }
.hero-card h3{ font-family:'Playfair Display',serif; font-size:30px; line-height:1.2; margin-bottom:26px; }
.hero-card ul{ list-style:none; }
.hero-card li{ position:relative; padding-left:28px; margin-bottom:18px; color:rgba(255,255,255,.88); line-height:1.7; }
.hero-card li::before{ content:""; position:absolute; left:0; top:11px; width:8px; height:8px; border-radius:50%; background:var(--blue-light); }
.scroll-indicator{ position:absolute; left:50%; bottom:35px; transform:translateX(-50%); width:32px; height:56px; border:2px solid rgba(255,255,255,.4); border-radius:999px; display:flex; justify-content:center; padding-top:10px; }
.scroll-indicator span{ width:5px; height:12px; border-radius:999px; background:white; animation:scrollDown 2s infinite; }
@keyframes scrollDown{ 0%{ opacity:0; transform:translateY(0); } 40%{ opacity:1; } 100%{ opacity:0; transform:translateY(18px); } }

/*==================================================
ABOUT
==================================================*/

#about{ background:var(--white); }
.about-grid{ display:grid; grid-template-columns:1fr 1fr; gap:90px; align-items:center; }
.about-image{ position:relative; overflow:hidden; border-radius:var(--radius); }
.about-image img{ aspect-ratio:4/5; object-fit:cover; transition:transform .8s ease; }
.about-image:hover img{ transform:scale(1.08); }
.about-content{ display:flex; flex-direction:column; }
.about-content .lead{ color:var(--navy); font-size:24px; font-weight:500; margin-bottom:30px; }
.about-content p{ font-size:18px; line-height:1.95; color:var(--gray); margin-bottom:22px; }
.about-features{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; margin-top:45px; }
.feature-card{ padding:28px; border-radius:var(--radius); background:#F8FAFC; border:1px solid #E8EDF5; transition:var(--transition); }
.feature-card:hover{ transform:translateY(-12px); box-shadow: 0 35px 80px rgba(8,26,46,.10); border-color:rgba(37,99,235,.25); }
.feature-card h3{ font-family:'Playfair Display',serif; font-size:34px; color:var(--blue); margin-bottom:10px; }
.feature-card span{ display:block; font-size:13px; letter-spacing:2px; text-transform:uppercase; font-weight:700; color:var(--navy); margin-bottom:18px; }
.feature-card p{ font-size:15px; line-height:1.8; color:var(--gray); margin:0; }

/*==================================================
PROCESS
==================================================*/

#process{ background:var(--light); }
.process-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:34px; margin-bottom:90px; }
.process-card{ position:relative; padding:40px 34px; background:var(--white); border-radius:var(--radius); border:1px solid #E8EDF5; transition:var(--transition); }
.process-card:hover{ transform:translateY(-12px); box-shadow: 0 35px 80px rgba(8,26,46,.10); border-color:rgba(37,99,235,.20); }
.process-number{ width:72px; height:72px; border-radius:50%; background:var(--blue); color:white; display:flex; align-items:center; justify-content:center; font-size:26px; font-weight:700; margin-bottom:32px; }
.process-card h3{ font-family:'Playfair Display',serif; font-size:32px; color:var(--navy); margin-bottom:18px; line-height:1.2; }
.process-card p{ color:var(--gray); line-height:1.9; font-size:17px; }
.process-image{ overflow:hidden; border-radius:var(--radius); }
.process-image img{ aspect-ratio:16/8; object-fit:cover; transition:transform .8s ease; }
.process-image:hover img{ transform:scale(1.04); }

/*==================================================
ENGINEERING
==================================================*/

#engineering{ background:var(--navy); color:var(--white); }
.engineering-grid{ display:grid; grid-template-columns:1fr 1fr; gap:90px; align-items:center; }
.engineering-content{ max-width:620px; }
.engineering-content .section-tag{ color:#8DB7FF; }
.engineering-content h2{ font-family:'Playfair Display',serif; font-size:clamp(46px,5vw,72px); line-height:1; margin-bottom:30px; }
.engineering-content .lead{ color:white; margin-bottom:26px; }
.engineering-content p{ color:rgba(255,255,255,.78); line-height:1.95; font-size:18px; margin-bottom:20px; }
.engineering-list{ list-style:none; display:flex; flex-direction:column; gap:18px; margin:45px 0 50px; }
.engineering-list li{ position:relative; padding-left:36px; color:white; font-size:17px; line-height:1.8; }
.engineering-list li::before{ content:""; position:absolute; left:0; top:11px; width:12px; height:12px; border-radius:50%; background:var(--blue-light); box-shadow:0 0 0 6px rgba(79,140,255,.15); }
.engineering-image{ position:relative; overflow:hidden; border-radius:var(--radius); }
.engineering-image img{ aspect-ratio:4/5; object-fit:cover; transition:transform .8s ease; }
.engineering-image:hover img{ transform:scale(1.05); }

/*==================================================
PORTFOLIO
==================================================*/

#gallery{ background:var(--white); }
.portfolio-grid{ display:grid; grid-template-columns:2fr 1fr 1fr; grid-auto-rows:340px; gap:24px; }
.portfolio-main{ position:relative; grid-row:span 2; overflow:hidden; border-radius:var(--radius); }
.portfolio-card{ overflow:hidden; border-radius:var(--radius); }
.portfolio-main img, .portfolio-card img{ width:100%; height:100%; object-fit:cover; transition:transform 1.2s ease,filter .8s ease; }
.portfolio-main:hover img, .portfolio-card:hover img{ transform:scale(1.10); filter:brightness(1.12); }
.portfolio-info{ position:absolute; left:40px; right:40px; bottom:40px; z-index:2; }
.portfolio-main::before{ content:""; position:absolute; inset:0; background:linear-gradient(transparent, rgba(8,26,46,.78)); }
.portfolio-info span{ display:inline-block; margin-bottom:12px; color:#A8C7FF; font-size:12px; letter-spacing:3px; font-weight:700; text-transform:uppercase; }
.portfolio-info h3{ font-family:'Playfair Display',serif; font-size:40px; color:white; line-height:1.1; }

/*==================================================
SHOWCASE
==================================================*/

#showcase{ position:relative; min-height:92vh; display:flex; align-items:center; overflow:hidden; color:white; }
#showcase>img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.showcase-overlay{ position:absolute; inset:0; background:linear-gradient(rgba(8,26,46,.35), rgba(8,26,46,.82)); }
#showcase .container{ position:relative; z-index:2; }
.showcase-content{ max-width:760px; }
.showcase-content span{ display:inline-block; margin-bottom:24px; color:#A8C7FF; font-size:13px; letter-spacing:4px; font-weight:700; text-transform:uppercase; }
.showcase-content h2{ font-family:'Playfair Display',serif; font-size:clamp(52px,6vw,88px); line-height:.95; margin-bottom:28px; }
.showcase-content p{ max-width:640px; font-size:20px; line-height:1.9; color:rgba(255,255,255,.82); margin-bottom:46px; }

/*==================================================
CONTACT
==================================================*/

#contact{ background:var(--light); }
.contact-grid{ display:grid; grid-template-columns:.9fr 1.1fr; gap:70px; align-items:start; }
.contact-information{ display:flex; flex-direction:column; gap:22px; }
.contact-card{ background:white; padding:34px; border-radius:var(--radius); border:1px solid #E8EDF5; transition:var(--transition); }
.contact-card:hover{ transform:translateY(-10px); box-shadow: 0 30px 70px rgba(8,26,46,.10); border-color:rgba(37,99,235,.20); }
.contact-card h3{ font-family:'Playfair Display',serif; color:var(--navy); font-size:28px; margin-bottom:12px; }
.contact-card p{ color:var(--gray); line-height:1.8; font-size:17px; }
.contact-form{ background:white; padding:40px; border-radius:var(--radius); border:1px solid #E8EDF5; box-shadow:0 25px 70px rgba(8,26,46,.05); }
.contact-form form{ display:flex; flex-direction:column; gap:22px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.contact-form input, .contact-form select, .contact-form textarea{ width:100%; padding:18px 20px; border:1px solid #DCE4EE; border-radius:14px; background:white; color:var(--text); font-size:16px; transition:var(--transition); }
.contact-form textarea{ resize:vertical; min-height:180px; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus{ outline:none; border-color:var(--blue); box-shadow:0 0 0 4px rgba(37,99,235,.10); }
.contact-form button{ margin-top:10px; border:none; }

/*==================================================
FOOTER
==================================================*/

footer{ background:var(--navy); color:white; padding:70px 0 30px; }
.footer-grid{ display:grid; grid-template-columns:2fr 1fr 1fr; gap:70px; margin-bottom:70px; }
.footer-brand img{ width:210px; margin-bottom:26px; }
.footer-brand p{ max-width:420px; color:rgba(255,255,255,.72); line-height:1.9; font-size:17px; }
.footer-column h4{ font-family:'Playfair Display',serif; font-size:26px; margin-bottom:22px; }
.footer-column{ display:flex; flex-direction:column; gap:16px; }
.footer-column a{ color:rgba(255,255,255,.72); transition:var(--transition); }
.footer-column a:hover{ color:white; }
.footer-bottom{ padding-top:30px; border-top:1px solid rgba(255,255,255,.08); text-align:center; }
.footer-bottom p{ color:rgba(255,255,255,.55); font-size:14px; }

/*==================================================
ANIMATIONS
==================================================*/

.reveal{ opacity:0; transform:translateY(80px); transition:1s cubic-bezier(.2,.65,.25,1); will-change:transform,opacity; }
.reveal.active{ opacity:1; transform:translateY(0); }
.fade-left{ opacity:0; transform:translateX(-80px); transition:1s cubic-bezier(.2,.65,.25,1); }
.fade-left.active{ opacity:1; transform:translateX(0); }
.fade-right{ opacity:0; transform:translateX(80px); transition:1s cubic-bezier(.2,.65,.25,1); }
.fade-right.active{ opacity:1; transform:translateX(0); }
.zoom{ opacity:0; transform:scale(.92); transition:1s cubic-bezier(.2,.65,.25,1); }
.zoom.active{ opacity:1; transform:scale(1); }
::selection{ background:var(--blue); color:white; }
::-webkit-scrollbar{ width:10px; }
::-webkit-scrollbar-track{ background:#EEF2F7; }
::-webkit-scrollbar-thumb{ background:var(--blue); border-radius:999px; }
::-webkit-scrollbar-thumb:hover{ background:var(--blue-light); }

/*==================================================
RESPONSIVE (1200px)
==================================================*/
@media(max-width:1200px){
    .hero-grid{ grid-template-columns:1fr; padding-top:120px; gap:60px; }
    .hero-right{ justify-content:flex-start; }
    .about-grid, .engineering-grid{ grid-template-columns:1fr; gap:60px; }
    .contact-grid{ grid-template-columns:1fr; }
    .footer-grid, .portfolio-grid{ grid-template-columns:1fr 1fr; }
    .portfolio-main{ grid-column:1/3; grid-row:auto; }
    .process-grid, .about-features{ grid-template-columns:1fr; }
}

/*==================================================
MOBILE MENU & AGGRESSIVE OPTIMIZATION (900px)
==================================================*/
@media(max-width:900px){
    :root{ --section: 60px; } 
    .header .container{ height:80px; }
    .header-btn{ display:none; }
    .menu-toggle{ display:flex; z-index:10001; }
    
    /* EL MOTOR DEL MENÚ MÓVIL */
    .navbar{ position:fixed; top:82px; left:0; width:100%; background:#081A2E !important; display:flex; flex-direction:column; align-items:center; gap:0; padding:0; transform:translateY(-120%); opacity:0; visibility:hidden; transition:.35s ease; }
    .navbar.active{ transform:translateY(0); opacity:1; visibility:visible; }
    
    /* BLINDAJE ABSOLUTO DEL COLOR BLANCO EN EL MENÚ MÓVIL (INCLUSO AL HACER SCROLL) */
    .navbar a, 
    .header.scrolled .navbar a, 
    .header.scrolled .navbar.active a { 
        width:100%; padding:22px 18px; text-align:center; font-size:18px; 
        border-bottom:1px solid rgba(255,255,255,.06); 
        color: #FFFFFF !important; 
    }
    .navbar a:hover, .header.scrolled .navbar.active a:hover { color: var(--blue-light) !important; background: rgba(255,255,255,.05); }
    .navbar a:last-child, .header.scrolled .navbar.active a:last-child { border-bottom: none; }

    /* Animación del botón hamburguesa */
    .menu-toggle.active span:nth-child(1){ transform:rotate(45deg) translate(6px,6px); }
    .menu-toggle.active span:nth-child(2){ opacity:0; }
    .menu-toggle.active span:nth-child(3){ transform:rotate(-45deg) translate(6px,-6px); }
    
    /* Compresión de Formulario y Footer */
    .form-row{ grid-template-columns:1fr; }
    .footer-grid{ grid-template-columns:1fr; gap:45px; }
    .portfolio-grid{ grid-template-columns:1fr; }
    .portfolio-main{ grid-column:auto; }
}

/*==================================================
SMARTPHONES ESTRICTOS (640px)
==================================================*/
@media(max-width:640px){
    :root{ --section: 50px; } /* MÁRGENES MÍNIMOS */
    .container{ width:92%; }
    
    /* Compresión Extrema Hero */
    .hero-grid{ min-height:auto; padding-top:100px; padding-bottom:40px; gap:40px; }
    .hero-left h1{ font-size:32px !important; margin-bottom: 15px; }
    .hero-left p{ font-size:16px; margin-bottom: 25px; line-height: 1.6; }
    .hero-buttons { gap: 12px; margin-bottom: 30px; }
    .btn { padding: 14px 24px; font-size: 14px; width: 100%; } /* Botones full-width en móvil */
    .hero-highlights { gap: 20px; }
    .hero-card{ padding:20px; }
    .hero-card h3{ font-size:22px; margin-bottom: 15px; }
    
    /* Compresión Extrema Secciones Generales */
    .section-heading{ margin-bottom:30px; }
    .section-heading h2{ font-size:28px !important; margin-bottom: 15px; }
    .section-heading p { font-size: 15px; line-height: 1.6; }
    .about-content .lead{ font-size:18px; margin-bottom: 20px; }
    
    /* Compresión de Tarjetas */
    .process-card, .contact-card, .contact-form { padding:20px; gap: 20px;}
    .process-card h3, .contact-card h3 { font-size:22px; }
    .engineering-content h2{ font-size:28px; }
    .portfolio-info{ left:20px; right:20px; bottom:20px; }
    .portfolio-info h3{ font-size:24px; }
    .showcase-content h2{ font-size:32px; margin-bottom: 15px; }
    .showcase-content p{ font-size:15px; }
    
    /* Compresión Footer */
    footer{ padding-top:40px; padding-bottom: 20px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 15px; }
}

@media(min-width:1800px){
    .container{ max-width:1500px; }
    .hero-left{ max-width:800px; }
    .hero-left h1{ font-size:108px; }
    .section-heading h2{ font-size:82px; }
    .showcase-content h2{ font-size:100px; }
}

/*==================================================
REDESIGN: TARJETAS DE PROCESO PREMIUM
==================================================*/
.process-card {
    position: relative !important;
    padding-top: 45px !important;
}

.process-number {
    position: absolute !important;
    top: 25px !important;
    right: 25px !important;
    width: 50px !important;
    height: 50px !important;
    font-size: 20px !important;
    margin-bottom: 0 !important;
    box-shadow: 0 12px 24px rgba(37,99,235,0.2) !important;
    z-index: 10;
}

/* Ajuste de proporción de los íconos vectoriales */
.process-card > div:nth-child(2) {
    margin-bottom: 30px !important;
    margin-top: 10px !important;
}

.process-card svg {
    width: 48px !important;
    height: 48px !important;
    stroke-width: 1.5 !important;
}