@import url('https://fonts.googleapis.com/css2?family=Nova+Mono&family=Nova+Round&display=swap');


/* ════════════════════════════════════════
   RESET
════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  overflow-x: clip;
  max-width: 100%;
}


/* ════════════════════════════════════════
   CSS VARIABLES (Light Theme)
════════════════════════════════════════ */
:root {
  --green-50:  #e8f5ee;
  --green-100: #c8e6d4;
  --green-200: #a0d4b4;
  --green-400: #2d7a4f;
  --green-600: #1e5c3a;
  --green-800: #133d27;
  --green-900: #0d2b1a;

  --bg:                #f0f7f0;
  --surface:           rgba(255,255,255,0.55);
  --primary:           var(--green-400);
  --text:              #0d2b1a;
  --text-muted:        #4a6e57;
  --border:            rgba(255,255,255,0.70);
  --card-heading-bg:   var(--green-900);
  --card-heading-text: var(--green-50);
  --shadow:            0 8px 32px rgba(45,122,79,0.10);
  --nav-bg:            rgba(240,247,240,0.45);
  --nav-border:        rgba(255,255,255,0.60);
  --error:             #b91c1c;
  --font-display:      'Nova Round', system-ui, sans-serif;
  --font-body:         'Nova Mono', monospace;
}


/* ════════════════════════════════════════
   CSS VARIABLES (Dark Theme)
════════════════════════════════════════ */
[data-theme="dark"] {
  --bg:                #0a0f0b;
  --surface:           rgba(20,35,25,0.60);
  --primary:           #4db87a;
  --text:              #e8f5ee;
  --text-muted:        #8aab8a;
  --border:            rgba(255,255,255,0.07);
  --card-heading-bg:   var(--green-50);
  --card-heading-text: var(--green-900);
  --shadow:            0 8px 32px rgba(0,0,0,0.50);
  --nav-bg:            rgba(10,15,11,0.55);
  --nav-border:        rgba(255,255,255,0.08);
  --error:             #f87171;
}


/* ════════════════════════════════════════
   MESH GRADIENT BACKGROUND
════════════════════════════════════════ */
body {
  font-family: var(--font-body);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  transition: color 0.3s;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 60% 50% at 20% 20%, rgba(45,122,79,0.18) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 80% 80%, rgba(30,92,58,0.14) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 60% 10%, rgba(160,212,180,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 70% 40% at 10% 90%, rgba(45,122,79,0.10) 0%, transparent 60%),
    var(--bg);
  transition: background 0.3s;
}

[data-theme="dark"] body::before {
  background:
    radial-gradient(ellipse 50% 40% at 15% 25%, rgba(20,50,30,0.55) 0%, transparent 70%),
    radial-gradient(ellipse 40% 50% at 85% 75%, rgba(13,43,26,0.50) 0%, transparent 70%),
    radial-gradient(ellipse 30% 35% at 55% 5%,  rgba(30,60,40,0.30) 0%, transparent 60%),
    radial-gradient(ellipse 60% 30% at 5%  95%, rgba(10,25,15,0.40) 0%, transparent 60%),
    var(--bg);
}


/* ════════════════════════════════════════
   GLASSMORPHISM NAVBAR
════════════════════════════════════════ */
header {
  background: var(--nav-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--nav-border);
  padding: 0.85rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: 1px;
  cursor: pointer;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 600;
  transition: color 0.2s;
  cursor: pointer;
}

.nav-links a:hover,
.nav-links a.active { color: var(--primary); }

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

#theme-toggle, #hamburger {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 6px;
  border-radius: 6px;
  transition: background 0.2s;
}

#theme-toggle:hover, #hamburger:hover { background: rgba(45,122,79,0.12); }


/* ════════════════════════════════════════
   MOBILE MENU
════════════════════════════════════════ */
#mobile-menu {
  display: none;
  position: fixed;
  top: 57px;
  left: 0;
  right: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--nav-border);
  padding: 1rem 5%;
  flex-direction: column;
  gap: 1rem;
  z-index: 1001;
  width: 100%;
}

#mobile-menu.open { display: flex; }

#mobile-menu a {
  text-decoration: none;
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 600;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
  cursor: pointer;
}

#mobile-menu a:hover { color: var(--primary); }

#hamburger { display: none; }

@media (max-width: 768px) {
  .nav-links { display: none; }
  #hamburger  { display: flex; }
}


/* ════════════════════════════════════════
   MAIN LAYOUT
════════════════════════════════════════ */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 5%;
  min-height: 80vh;
  width: 100%;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--primary);
  margin-bottom: 0.75rem;
}


/* ════════════════════════════════════════
   HERO SECTION
════════════════════════════════════════ */
.hero {
  text-align: center;
  padding: 5rem 1rem 4rem;
}

.hero h1 { font-size: 3rem; margin-bottom: 1rem; }
.hero p  { font-size: 1.1rem; color: var(--text-muted); max-width: 600px; margin: 0 auto 2rem; }


/* ════════════════════════════════════════
   GLASS CARDS
════════════════════════════════════════ */
.card {
  background: var(--surface);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(45,122,79,0.18);
}

.card-heading {
  background: var(--card-heading-bg);
  color: var(--card-heading-text);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  padding: 0.75rem 1.25rem;
}

.card-body { padding: 1.25rem; }


/* ════════════════════════════════════════
   GRID
════════════════════════════════════════ */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}


/* ════════════════════════════════════════
   BUTTONS
════════════════════════════════════════ */
.btn {
  display: inline-block;
  padding: 0.75rem 1.8rem;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s, filter 0.2s;
}

.btn:hover { transform: translateY(-2px); filter: brightness(1.12); }


/* ════════════════════════════════════════
   TABLES
════════════════════════════════════════ */
table           { width: 100%; border-collapse: collapse; margin: 2rem 0; }
caption         { padding: 0.75rem; font-family: var(--font-display); color: var(--text-muted); }
th, td          { padding: 0.85rem 1rem; border: 1px solid rgba(45,122,79,0.2); text-align: left; }
thead th        { background: var(--green-400); color: #fff; font-family: var(--font-display); }
tbody tr:nth-child(even) { background: rgba(45,122,79,0.05); }
tfoot td        { font-weight: bold; background: rgba(45,122,79,0.08); }


/* ════════════════════════════════════════
   FORMS
════════════════════════════════════════ */
form {
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem;
  max-width: 620px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

fieldset { border: 1px solid rgba(45,122,79,0.25); padding: 1.25rem; border-radius: 8px; }
legend   { padding: 0 0.5rem; color: var(--primary); font-family: var(--font-display); }
label    { font-weight: 600; display: block; margin-top: 0.5rem; cursor: pointer; }

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="number"],
select, textarea {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1px solid rgba(45,122,79,0.3);
  border-radius: 6px;
  background: rgba(255,255,255,0.3);
  color: var(--text);
  font-family: var(--font-body);
  margin-top: 0.3rem;
}

/* ── Cursor UX cues ── */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="number"],
textarea            { cursor: text; }

select              { cursor: pointer; }

input[type="radio"],
input[type="checkbox"] { cursor: pointer; }

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea { background: rgba(20,50,30,0.4); }

input:focus, textarea:focus, select:focus { outline: 2px solid var(--primary); }
.error-msg { color: var(--error); font-size: 0.82rem; display: none; }


/* ════════════════════════════════════════
   DAILY MOTIVATION WIDGET
════════════════════════════════════════ */
.motivation-section {
  text-align: center;
  max-width: 700px;
  margin: 2rem auto;
}

#motivationBox {
  max-width: 600px;
  margin: 1.5rem auto 0;
}

#motivationText {
  color: var(--text-muted);
}


/* ════════════════════════════════════════
   DETAILS / SUMMARY (FAQ Accordion)
════════════════════════════════════════ */
details {
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

summary   { cursor: pointer; color: var(--primary); font-family: var(--font-display); font-weight: 700; }
details p { margin-top: 0.75rem; color: var(--text-muted); }


/* ════════════════════════════════════════
   MEDIA
════════════════════════════════════════ */
img, video      { max-width: 100%; height: auto; border-radius: 10px; }
.media-wrapper  { margin: 2rem 0; text-align: center; max-width: 100%; overflow: hidden; }
canvas          { border-radius: 10px; background: var(--surface); border: 1px solid var(--border); max-width: 100%; }
iframe          { border-radius: 10px; max-width: 100%; }


/* ════════════════════════════════════════
   FOOTER
════════════════════════════════════════ */
footer {
  text-align: center;
  padding: 2rem;
  background: var(--nav-bg);
  backdrop-filter: blur(24px);
  border-top: 1px solid var(--nav-border);
  font-family: var(--font-body);
  color: var(--text-muted);
  margin-top: 4rem;
  width: 100%;
}


/* ════════════════════════════════════════
   SELECTORS, PSEUDO-CLASSES & PSEUDO-ELEMENTS
════════════════════════════════════════ */

/* Adjacent sibling — nav active underline indicator */
.nav-links a.active + a { opacity: 1; }

/* Descendant + :not() pseudo-class */
nav > ul > li > a:not(.active):hover { opacity: 0.8; }

/* nth-child on cards — alternating accent border */
.card:nth-child(odd)  { border-top: 3px solid var(--primary); }
.card:nth-child(even) { border-top: 3px solid var(--green-200); }

/* Attribute selector on checkbox label */
input[type="checkbox"] + label { cursor: pointer; }

/* ::before pseudo-element — decorative card top line */
.card::before { content: ''; display: block; }

/* ::after pseudo-elements — FAQ arrow indicators */
details summary::after       { content: ' ▾'; }
details[open] summary::after { content: ' ▴'; }


/* ════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════ */
@media (max-width: 768px) {
  .hero h1         { font-size: 2rem; }
  .hero            { padding: 3rem 1rem 2rem; }
  main             { padding: 1.5rem 4%; }
  .grid-container  { grid-template-columns: 1fr; }
  table            { font-size: 0.78rem; display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  th, td           { padding: 0.5rem 0.6rem; white-space: nowrap; }
  img, iframe, video { max-width: 100%; }
  form             { padding: 1.25rem; }
  .btn             { width: 100%; text-align: center; }
}