/* ========================================
   VARIABLES Y RESET
   ======================================== */
:root {
    --bg-cream: #FCF9F2;
    --bg-white: #FFFFFF;
    --bg-grey-light: #F4F2EB;
    
    --color-coral: #FF7B54;
    --color-coral-dark: #E5613A;
    --color-green-light: #D2E8D3;
    --color-green-dark: #608A61;
    
    --color-yellow-soft: #FDE9C5;
    --color-blue-soft: #CFE8F5;
    --color-purple-soft: #E5D6F5;

    --font-primary: 'Inter', sans-serif;
    --text-dark: #2D2A25;
    --text-muted: #6B6560;
    --text-white: #FFFFFF;

    --max-width: 1200px;
    --shadow-card: 0 20px 60px rgba(45, 42, 37, 0.08);
    --shadow-hero: 0 20px 40px rgba(0,0,0,0.1);
    --radius-soft: 24px;
    --radius-pill: 50px;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-cream);
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ========================================
   UTILIDADES (compartidas por todas las páginas)
   ======================================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--color-coral), var(--color-coral-dark));
    color: var(--text-white);
    padding: 14px 32px;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 15px rgba(255, 123, 84, 0.3);
    border: none;
    cursor: pointer;
}
.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 25px rgba(255, 123, 84, 0.4);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text-dark);
    padding: 14px 32px;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid var(--text-dark);
    transition: all 0.3s ease;
    cursor: pointer;
}
.btn-outline:hover {
    background: var(--text-dark);
    color: var(--bg-white);
}

.btn-demo {
    background: var(--bg-white);
    color: var(--color-coral-dark);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border: 2px solid transparent;
}
.btn-demo:hover {
    background: var(--bg-cream);
    border: 2px solid var(--color-coral);
    transform: scale(1.05);
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    color: var(--text-dark);
}
.section-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px auto;
    text-align: center;
}

.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: var(--shadow-card);
    border-radius: var(--radius-soft);
    padding: 32px;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.glass-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 70px rgba(45, 42, 37, 0.12);
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.reveal.active {
    opacity: 1;
    transform: translateY(0px);
}

/* ========================================
   HEADER / NAVEGACIÓN
   ======================================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(252, 249, 242, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.04);
    transition: box-shadow 0.3s ease;
    padding: 16px 0;
}
header.scrolled {
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}
.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    color: var(--text-dark);
}
.logo i { color: var(--color-coral); font-size: 2.2rem; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-links a {
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.3s ease;
    font-size: 0.95rem;
}
.nav-links a:hover { color: var(--color-coral); }
.nav-links .btn-nav-primary {
    background: var(--text-dark);
    color: var(--bg-white);
    padding: 10px 24px;
    border-radius: var(--radius-pill);
    font-weight: 600;
}
.nav-links .btn-nav-primary:hover {
    background: var(--color-coral);
    color: white;
}

/* ========================================
   FOOTER
   ======================================== */
footer {
    background: #1C1A17;
    color: rgba(255,255,255,0.7);
    padding: 60px 0 20px 0;
}
footer h4 {
    color: white;
    margin-bottom: 16px;
    font-weight: 600;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
footer p { font-size: 0.9rem; line-height: 1.6; }
footer ul li { margin-bottom: 8px; }
footer ul li a:hover { color: var(--color-coral); }
.social-links {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}
.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all 0.3s ease;
}
.social-links a:hover { background: var(--color-coral); border-color: var(--color-coral); }
.footer-copy {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 24px;
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
}

@media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; text-align: center; } }