/* ===== Studio Webb — Global Design System ===== */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --primary-50: rgba(99,102,241,0.05);
    --primary-100: rgba(99,102,241,0.1);
    --primary-200: rgba(99,102,241,0.2);
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --success: #10b981;
    --success-light: #d1fae5;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --warning: #f59e0b;
    --whatsapp: #25D366;
    --whatsapp-dark: #1da851;

    /* Neutrals */
    --gray-950: #0a0a0f;
    --gray-900: #0f172a;
    --gray-800: #1e293b;
    --gray-700: #334155;
    --gray-600: #475569;
    --gray-500: #64748b;
    --gray-400: #94a3b8;
    --gray-300: #cbd5e1;
    --gray-200: #e2e8f0;
    --gray-100: #f1f5f9;
    --gray-50: #f8fafc;
    --white: #ffffff;

    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', sans-serif;

    /* Spacing */
    --section-pad: clamp(60px, 10vw, 120px);

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.1);
    --shadow-xl: 0 24px 48px rgba(0,0,0,0.12);
    --shadow-primary: 0 8px 24px rgba(99,102,241,0.3);
    --shadow-whatsapp: 0 8px 24px rgba(37,211,102,0.3);

    /* Radius */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --duration: 0.25s;
}

/* ===== Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-body); color: var(--gray-900); line-height: 1.6; background: var(--white); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--duration) var(--ease); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }

/* ===== Layout ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
.gradient-text { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-header { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-header h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: 12px; }
.section-header p { font-size: 1.05rem; color: var(--gray-500); line-height: 1.7; }
.section-tag { display: inline-flex; align-items: center; padding: 6px 14px; background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(139,92,246,0.08)); color: var(--primary); border-radius: var(--radius-full); font-size: 0.78rem; font-weight: 600; margin-bottom: 14px; letter-spacing: 0.3px; border: 1px solid rgba(99,102,241,0.12); }
.tag-red { background: linear-gradient(135deg, rgba(239,68,68,0.06), rgba(239,68,68,0.1)); color: var(--danger); border-color: rgba(239,68,68,0.12); }
.tag-green { background: linear-gradient(135deg, rgba(16,185,129,0.06), rgba(16,185,129,0.1)); color: var(--success); border-color: rgba(16,185,129,0.12); }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 24px; border-radius: var(--radius); font-weight: 600; font-size: 0.9rem; border: none; transition: all var(--duration) var(--ease); white-space: nowrap; cursor: pointer; }
.btn-sm { padding: 10px 18px; font-size: 0.82rem; }
.btn-lg { padding: 16px 32px; font-size: 0.95rem; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: var(--white); box-shadow: var(--shadow-primary); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(99,102,241,0.4); }
.btn-ghost { background: transparent; color: var(--gray-700); border: 1.5px solid var(--gray-200); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-white { background: var(--white); color: var(--gray-900); box-shadow: var(--shadow-md); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-whatsapp { background: var(--whatsapp); color: var(--white); box-shadow: var(--shadow-whatsapp); }
.btn-whatsapp:hover { background: var(--whatsapp-dark); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(37,211,102,0.4); }

/* ===== Navigation ===== */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 14px 0; background: rgba(255,255,255,0.85); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid transparent; transition: all var(--duration) var(--ease); }
.navbar.scrolled { padding: 10px 0; border-bottom-color: var(--gray-200); box-shadow: var(--shadow-sm); }
.nav-container { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-heading); font-weight: 700; font-size: 1.2rem; color: var(--gray-900); }
.logo-content { display: flex; flex-direction: column; }
.logo-text { line-height: 1.2; }
.logo-text em { font-style: normal; color: #3b1dab; }
.logo-slogan { font-size: 0.55rem; font-weight: 500; color: var(--gray-500); letter-spacing: 0.2px; line-height: 1; margin-top: 2px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 0.88rem; font-weight: 500; color: var(--gray-600); display: flex; align-items: center; gap: 4px; }
.nav-links a:hover { color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-whatsapp { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius); background: rgba(37,211,102,0.1); color: var(--whatsapp); transition: all var(--duration) var(--ease); border: 1px solid rgba(37,211,102,0.15); }
.nav-whatsapp:hover { background: var(--whatsapp); color: var(--white); border-color: var(--whatsapp); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(37,211,102,0.3); }

/* Dropdown */
.nav-dropdown { position: relative; }
.dropdown-menu { position: absolute; top: 100%; left: -16px; min-width: 220px; padding: 8px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius); box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateY(8px); transition: all var(--duration) var(--ease); }
.nav-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a { display: block; padding: 10px 14px; font-size: 0.85rem; color: var(--gray-600); border-radius: var(--radius-sm); }
.dropdown-menu a:hover { background: var(--primary-50); color: var(--primary); }

/* Mobile Nav */
.mobile-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 6px; }
.mobile-toggle span { width: 22px; height: 2px; background: var(--gray-900); border-radius: 2px; transition: all var(--duration) var(--ease); }

/* ===== Footer ===== */
.footer { padding: 72px 0 28px; background: linear-gradient(180deg, var(--gray-900) 0%, #0c0f1a 100%); color: var(--gray-400); position: relative; overflow: hidden; }
.footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--primary-200), transparent); }
.footer-grid { display: grid; grid-template-columns: 30% 15% 15% 14% 18%; gap: 20px; margin-bottom: 48px; }
.footer-brand .logo { color: var(--white); margin-bottom: 16px; display: inline-flex; }
.footer-brand .logo .logo-text em { color: #a78bfa; }
.footer-brand .logo .logo-slogan { color: var(--gray-500); }
.footer-brand p { font-size: 0.88rem; line-height: 1.7; color: var(--gray-400); }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius); background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); color: var(--gray-400); transition: all var(--duration) var(--ease); }
.footer-social a:hover { background: var(--primary); border-color: var(--primary); color: var(--white); transform: translateY(-3px); box-shadow: 0 6px 16px rgba(99,102,241,0.3); }
.footer-links h4 { font-size: 0.85rem; color: var(--white); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 0.85rem; color: var(--gray-400); transition: all var(--duration) var(--ease); }
.footer-links a:hover { color: var(--white); padding-left: 4px; }
.footer-contact li { font-size: 0.85rem; color: var(--gray-400); display: flex; align-items: center; gap: 10px; }
.footer-contact li svg { flex-shrink: 0; }
.footer-contact li a { color: var(--gray-400); }
.footer-contact li a:hover { color: var(--white); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.06); }
.footer-bottom p { font-size: 0.8rem; color: var(--gray-500); }
.footer ::selection { background: #6366f1; color: var(--white); }
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { font-size: 0.8rem; color: var(--gray-500); transition: color var(--duration) var(--ease); }
.footer-bottom-links a:hover { color: var(--primary-light); }

/* ===== WhatsApp Float ===== */
.whatsapp-float { position: fixed; bottom: 24px; right: 24px; width: 58px; height: 58px; background: linear-gradient(135deg, #25D366, #128C7E); border-radius: var(--radius-full); display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 20px rgba(37,211,102,0.35); z-index: 998; transition: all var(--duration) var(--ease); }
.whatsapp-float::before { content: ''; position: absolute; inset: -3px; border-radius: var(--radius-full); background: linear-gradient(135deg, rgba(37,211,102,0.4), transparent); z-index: -1; animation: pulse-ring 2.5s infinite; }
@keyframes pulse-ring { 0% { transform: scale(1); opacity: 0.6; } 100% { transform: scale(1.4); opacity: 0; } }
.whatsapp-float:hover { transform: scale(1.1) rotate(-5deg); box-shadow: 0 12px 32px rgba(37,211,102,0.5); }
.wa-tooltip { position: absolute; right: 68px; background: var(--white); color: var(--gray-900); padding: 8px 14px; border-radius: var(--radius-sm); font-size: 0.8rem; font-weight: 500; box-shadow: var(--shadow-md); white-space: nowrap; opacity: 0; transform: translateX(8px); transition: all var(--duration) var(--ease); pointer-events: none; }
.whatsapp-float:hover .wa-tooltip { opacity: 1; transform: translateX(0); }

/* ===== Mobile Sticky CTA ===== */
.mobile-sticky-cta { display: none; position: fixed; bottom: 0; left: 0; right: 0; padding: 12px 16px; background: var(--white); border-top: 1px solid var(--gray-200); box-shadow: 0 -4px 12px rgba(0,0,0,0.08); z-index: 997; gap: 10px; }
.mobile-sticky-cta .btn { flex: 1; justify-content: center; padding: 12px; font-size: 0.85rem; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions { display: none; }
    .nav-links.active { display: flex; position: fixed; top: 0; right: 0; width: 85%; max-width: 320px; height: 100vh; background: var(--white); flex-direction: column; align-items: flex-start; padding: 80px 24px 24px; gap: 16px; box-shadow: var(--shadow-xl); z-index: 1001; }
    .nav-links.active .nav-dropdown .dropdown-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; padding-left: 12px; }
    .mobile-toggle { display: flex; z-index: 1002; }
    .mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .mobile-toggle.active span:nth-child(2) { opacity: 0; }
    .mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
    .mobile-sticky-cta { display: flex; }
    .whatsapp-float { bottom: 80px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}

/* ===== Animations ===== */
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.animate-on-scroll { opacity: 0; transform: translateY(24px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.animate-on-scroll.visible { opacity: 1; transform: translateY(0); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    html { scroll-behavior: auto; }
}

/* Focus */
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
::selection { background: #c4b5fd; color: var(--gray-900); }