/* ============================================
   MARKSAINT — SHARED DESIGN SYSTEM
   Imported by both index.html and planner.html
============================================ */

/* ============================================
   CSS RESET & VARIABLES
============================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Core palette */
  --dark-bg: #060a1f;
  --dark-surface: #0c1133;
  --dark-card: #111640;
  --dark-elevated: #161d52;
  --blue-primary: #1a2566;
  --blue-mid: #2a3a8f;
  --blue-light: #4a6cf7;
  --blue-glow: #5b7cfa;
  --orange-primary: #ff6b2b;
  --orange-light: #ff8c42;
  --orange-glow: #ff9a5c;
  --orange-soft: #ffb380;
  --white: #ffffff;
  --white-90: rgba(255,255,255,0.9);
  --white-70: rgba(255,255,255,0.7);
  --white-50: rgba(255,255,255,0.5);
  --white-30: rgba(255,255,255,0.3);
  --white-15: rgba(255,255,255,0.15);
  --white-08: rgba(255,255,255,0.08);
  --white-04: rgba(255,255,255,0.04);
  --success: #00e676;
  --warning: #ffab40;
  --error: #ff5252;

  /* Glass */
  --glass-bg: rgba(17, 22, 64, 0.6);
  --glass-border: rgba(255,255,255,0.08);
  --glass-blur: 20px;

  /* Neon shadows */
  --neon-orange: 0 0 20px rgba(255,107,43,0.4), 0 0 40px rgba(255,107,43,0.15);
  --neon-blue: 0 0 20px rgba(74,108,247,0.4), 0 0 40px rgba(74,108,247,0.15);
  --neon-orange-strong: 0 0 10px rgba(255,107,43,0.6), 0 0 30px rgba(255,107,43,0.3), 0 0 60px rgba(255,107,43,0.1);

  /* Neomorphism */
  --neo-shadow-dark: rgba(4, 6, 18, 0.8);
  --neo-shadow-light: rgba(30, 40, 90, 0.4);

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Orbitron', 'Inter', sans-serif;

  /* Spacing */
  --section-padding: clamp(3rem, 8vw, 6rem);
  --container-max: 1100px;
  --border-radius: 16px;
  --border-radius-sm: 10px;
  --border-radius-xs: 6px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-med: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Pillar colors */
  --color-educativo: #4a6cf7;
  --color-inspiracao: #f59e0b;
  --color-bastidor: #8b5cf6;
  --color-prova: #00e676;
  --color-oferta: #ff6b2b;
  --color-interacao: #ec4899;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--dark-bg);
  color: var(--white-90);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   SHARED COMPONENTS
============================================ */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  border-radius: 50px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition-med);
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 0; height: 0;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s;
}
.btn:hover::before { width: 300px; height: 300px; }

.btn-primary {
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-light));
  color: var(--white);
  box-shadow: var(--neon-orange);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--neon-orange-strong);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--white);
  border: 1px solid var(--white-15);
  backdrop-filter: blur(10px);
}
.btn-secondary:hover {
  border-color: var(--orange-primary);
  background: rgba(255,107,43,0.08);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.6rem 1.2rem;
  font-size: 0.8rem;
}

.btn-ghost {
  background: transparent;
  color: var(--white-70);
  border: 1px solid var(--glass-border);
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
}
.btn-ghost:hover {
  border-color: var(--white-30);
  color: var(--white);
  background: var(--white-04);
}

/* Glass card */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  padding: clamp(1.5rem, 3vw, 2.5rem);
  transition: var(--transition-med);
}

/* Pillar tags */
.pillar-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.pillar-tag.educativo { background: rgba(74,108,247,0.15); color: var(--color-educativo); }
.pillar-tag.bastidor { background: rgba(139,92,246,0.15); color: var(--color-bastidor); }
.pillar-tag.prova { background: rgba(0,230,118,0.12); color: var(--color-prova); }
.pillar-tag.oferta { background: rgba(255,107,43,0.15); color: var(--color-oferta); }
.pillar-tag.interacao { background: rgba(236,72,153,0.15); color: var(--color-interacao); }
.pillar-tag.inspiracao { background: rgba(245,158,11,0.12); color: var(--color-inspiracao); }

/* Navbar shared */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  padding: 0.75rem 0;
  transition: var(--transition-med);
  background: rgba(6,10,31,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2rem);
}
.logo {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  font-weight: 800;
  letter-spacing: 2px;
  background: linear-gradient(135deg, var(--orange-primary), var(--orange-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  text-transform: uppercase;
}
.logo span {
  -webkit-text-fill-color: var(--white);
  color: var(--white);
}

/* Background elements */
.bg-grid {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(74,108,247,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74,108,247,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridPulse 8s ease-in-out infinite;
}
.orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  z-index: 0;
  pointer-events: none;
  animation: orbFloat 20s ease-in-out infinite;
}

/* Shared animations */
@keyframes gridPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(40px, -30px) scale(1.1); }
  50% { transform: translate(-20px, 50px) scale(0.95); }
  75% { transform: translate(30px, 20px) scale(1.05); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,107,43,0.3); }
  50% { box-shadow: 0 0 0 8px rgba(255,107,43,0); }
}