/* =========================================
   SENIA - Futuristic Tech Landing Page
   ========================================= */

:root {
    /* Color Palette */
    --bg-main: #050814;
    --bg-secondary: #0a0f1d;
    --bg-tertiary: #111827;
    
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    
    --accent-cyan: #00f2fe;
    --accent-blue: #4facfe;
    --accent-glow: rgba(0, 242, 254, 0.5);
    
    /* UI Elements */
    --glass-bg: rgba(255, 255, 255, 0.02);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-hover: rgba(255, 255, 255, 0.05);
    
    /* Layout */
    --container-width: 1200px;
    --section-padding: 100px 0;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-main);
    overflow-x: hidden;
}

body {
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Canvas Background */
#cursor-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
}

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

img {
    max-width: 100%;
    height: auto;
}

/* General Layout */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
}

.section {
    padding: var(--section-padding);
    position: relative;
}

.text-center { text-align: center; }
.mb-8 { margin-bottom: 2rem; }
.mt-8 { margin-top: 2rem; }
.mt-4 { margin-top: 1rem; }
.pt-8 { padding-top: 2rem; }
.border-t { border-top: 1px solid; }
.flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.relative { position: relative; }
.brand-msg { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.5; max-width: 260px; }

/* Grid System */
.grid {
    display: grid;
    gap: 30px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Typography Rules */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 a { color: var(--text-primary); }

p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-red {
    background: linear-gradient(135deg, #f87171, #ef4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-align: center;
}

.section-subtitle {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 3rem;
    text-align: center;
}

/* =========================================
   UI COMPONENTS
   ========================================= */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.9rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 25px rgba(0, 242, 254, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--glass-hover);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 30px;
    backdrop-filter: blur(20px);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at top left, rgba(255,255,255,0.05), transparent 60%);
    pointer-events: none;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.glass-input {
    width: 100%;
    padding: 15px 20px;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: white;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    outline: none;
    transition: var(--transition-fast);
}

.glass-input:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 2px rgba(0, 242, 254, 0.2);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 242, 254, 0.1);
    border: 1px solid rgba(0, 242, 254, 0.2);
    border-radius: 50px;
    color: var(--accent-cyan);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Background Blurs */
.bg-blur-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    z-index: 0;
    pointer-events: none;
}

.top-right {
    top: -10%; right: -5%;
    width: 500px; height: 500px;
    background: rgba(0, 242, 254, 0.05);
}

.bottom-left {
    bottom: -10%; left: -5%;
    width: 600px; height: 600px;
    background: rgba(79, 172, 254, 0.05);
}

/* =========================================
   NAVIGATION
   ========================================= */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    padding: 10px 0;
    z-index: 100;
    background: rgba(5, 8, 20, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    background: rgba(5, 8, 20, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 15px 0;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    color: white;
}

.logo {
    display: flex;
    align-items: flex-start;
    line-height: 0;
    height: 30px;
    overflow: hidden;
}

/* Navbar: muestra solo wordmark SENIA (top 68% del logo) */
.logo-img {
    height: 44px;
    width: auto;
    display: block;
    mix-blend-mode: screen; /* elimina fondo oscuro del logo */
}

/* Footer: logo completo con tagline */
.footer-brand .logo {
    height: auto;
    overflow: visible;
    align-items: flex-start;
}

.footer-brand .logo-img {
    height: 54px;
    width: auto;
    display: block;
    margin-bottom: 12px;
    mix-blend-mode: screen;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-item {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.nav-item:hover {
    color: white;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 100%;
    height: 2px;
    background-color: white;
    border-radius: 2px;
}

/* =========================================
   SECTIONS
   ========================================= */

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-bg-glow {
    position: absolute;
    top: 30%; left: 50%;
    transform: translate(-50%, -50%);
    width: 800px; height: 800px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.headline {
    font-size: 4.5rem;
    margin-bottom: 24px;
    text-align: center;
}

.hero .subheadline {
    font-size: 1.25rem;
    max-width: 650px;
    margin: 0 auto 40px;
    text-align: center;
}

.cta-group {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Problem Section */
.problem-card h3 {
    margin: 20px 0 10px;
    font-size: 1.3rem;
}

.card-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
}

.card-icon svg { width: 24px; height: 24px; }

.card-icon.red-glow {
    color: #ef4444;
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.1);
}

.card-icon.cyan-glow {
    color: var(--accent-cyan);
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.1);
}

/* Solution Section */
.solution-card h3 {
    margin: 20px 0 10px;
    font-size: 1.3rem;
}

/* Process Section */
.process-flow {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.process-line {
    position: absolute;
    left: 24px;
    top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--glass-border), transparent);
}

.process-step {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
}

.step-number {
    width: 50px; height: 50px;
    background: var(--bg-main);
    border: 1px solid var(--accent-cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--accent-cyan);
    flex-shrink: 0;
    z-index: 2;
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.2);
}

.step-content {
    flex-grow: 1;
}

.step-content h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
}

/* Technology Diagram */
.tech-list {
    list-style: none;
}

.tech-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.dot {
    width: 8px; height: 8px;
    border-radius: 50%;
}

.dot.cyan { background: var(--accent-cyan); box-shadow: 0 0 10px var(--accent-cyan); }
.dot.blue { background: var(--accent-blue); box-shadow: 0 0 10px var(--accent-blue); }

.tech-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
}

.glass-circle {
    width: 320px; height: 320px; /* Increased circumference */
    border-radius: 50%;
    border: 1px dashed var(--glass-border);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    /* We spin the entire container */
    animation: spin-container 40s linear infinite;
}

.node {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: white;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.central-node {
    width: 110px; height: 110px;
    border-radius: 50%;
    font-size: 1.3rem;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 30px rgba(0, 242, 254, 0.2);
    z-index: 10;
    position: absolute; /* Take out of flow to stay dead center */
    top: 50%; left: 50%;
    margin: -55px 0 0 -55px; /* Center mathematically instead of translate */
    /* We must counter-spin the central node so SENIA text stays upright */
    animation: counter-spin-node 40s linear infinite, pulse 3s infinite alternate;
}

.mini-node {
    position: absolute;
    width: 65px; height: 65px;
    font-size: 0.85rem;
    margin: -32.5px 0 0 -32.5px; /* Exact center anchors for coordinate placement */
    /* We must counter-spin every mini node at the exact same speed to stay upright */
    animation: counter-spin-node 40s linear infinite;
}

/* Position nodes geometrically in a perfect pentagon (0, 72, 144, 216, 288 degrees) */
.api   { left: 50%;     top: 0%; }
.data  { left: 97.55%;  top: 19.10%; }
.ai    { left: 79.39%;  top: 90.45%; }
.cloud { left: 20.61%;  top: 90.45%; }
.crm   { left: 2.45%;   top: 19.10%; }

/* Animations */
@keyframes spin-container { 100% { transform: rotate(360deg); } }
@keyframes counter-spin-node { 100% { transform: rotate(-360deg); } }
@keyframes pulse { 0% { box-shadow: 0 0 20px rgba(0, 242, 254, 0.1); } 100% { box-shadow: 0 0 40px rgba(0, 242, 254, 0.4); } }

/* Results */
.counter-card {
    text-align: center;
}

.counter-value {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 10px;
}

/* Final CTA */
.cta-box {
    padding: 60px 40px;
    max-width: 800px;
    margin: 0 auto;
}

.lead-form {
    max-width: 500px;
    margin: 2rem auto 0;
}

.vertical-flow {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.w-100 {
    width: 100%;
}

.form-message {
    margin-top: 15px;
    padding: 15px;
    border-radius: 8px;
    background: rgba(0, 242, 254, 0.1);
    border: 1px solid rgba(0, 242, 254, 0.2);
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.form-message.visible {
    display: block;
    opacity: 1;
}

.success-text {
    color: var(--accent-cyan);
    margin: 0;
    font-weight: 500;
}

/* Footer */
.footer {
    padding: 60px 0 30px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.link-group h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.link-group a {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.link-group a:hover { color: white; }

.border-glass { border-color: var(--glass-border); }

/* =========================================
   ANIMATIONS & UTILITIES
   ========================================= */
.reveal-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-up.active {
    opacity: 1;
    transform: translateY(0);
}

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 900px) {
    .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .headline { font-size: 3.5rem; }
    .grid-2 { grid-template-columns: 1fr; gap: 50px; }
    .tech-diagram { margin-top: 40px; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .menu-toggle { display: flex; }
    
    /* Logo mobile: solo wordmark SENIA */
    .logo { height: 24px; overflow: hidden; align-items: flex-start; }
    .logo-img { height: 35px !important; width: auto !important; }
    .footer-brand .logo { height: auto !important; overflow: visible; }
    .footer-brand .logo-img { height: 46px !important; margin-bottom: 10px; }
    .brand-msg { max-width: 100%; text-align: center; }
    .navbar { padding: 8px 0; }
    .navbar.scrolled { padding: 6px 0; }
    
    /* Fix Typography and Overflows */
    .hero { padding-top: 100px; } /* Adjusted for thinner header */
    .headline { font-size: 2.1rem; line-height: 1.25; margin-bottom: 20px; text-align: center; }
    .hero .subheadline { font-size: 1.05rem; margin-bottom: 30px; text-align: center; }
    .section-title { font-size: 1.9rem; line-height: 1.25; word-wrap: normal; hyphens: none; text-align: center; }
    .section-subtitle { font-size: 1.05rem; text-align: center; }
    .section { padding: 60px 0; }
    
    /* Layouts */
    .cta-group { flex-direction: column; }
    .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .footer-top { flex-direction: column; text-align: center; }
    .link-group { text-align: center; }
    .footer-bottom { flex-direction: column; text-align: center; gap: 15px; }
    
    /* Sub-scale tech diagram to fit mobile screens */
    .glass-circle { width: 260px !important; height: 260px !important; }
    .central-node { width: 90px; height: 90px; font-size: 1.1rem; margin: -45px 0 0 -45px; }
}

/* Very small screens (iPhone SE, 375px) */
@media (max-width: 400px) {
    .headline { font-size: 1.85rem; }
    .section-title { font-size: 1.65rem; }
    .logo-img { height: 32px !important; width: auto !important; }
    .btn { font-size: 0.85rem; padding: 12px 20px; }
    .nav-container { padding: 0 16px; }
    .container { padding: 0 16px; }
    .wa-wrapper { bottom: 16px; right: 16px; }
}