/* ═══════════════════════════════════════════════════════
   STEMNEST ACADEMY — GLOBAL STYLES
   Shared across every page: variables, reset, nav,
   buttons, footer, animations, responsive base.
═══════════════════════════════════════════════════════ */

/* ── VARIABLES ── */
:root {
  --blue: #1a56db;      --blue-dark: #1140b0;   --blue-light: #e8f0fd;
  --green: #0e9f6e;     --green-dark: #0a7a55;  --green-light: #e3f8f1;
  --orange: #ff6b35;    --orange-dark: #d9541f; --orange-light: #fff1eb;
  --purple: #7c3aed;    --purple-light: #ede9fe;
  --dark: #1a202c;      --mid: #4a5568;         --light: #718096;
  --bg: #f7f9ff;        --white: #ffffff;
  --radius: 16px;
  --shadow: 0 4px 24px rgba(26,86,219,0.10);
}

/* ── RESET ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Nunito', sans-serif;
  background: var(--white);
  color: var(--dark);
  overflow-x: hidden;
}

/* ── TYPOGRAPHY HELPERS ── */
.text-center  { text-align: center; }
.mx-auto      { margin-left: auto; margin-right: auto; }

.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--blue-light); color: var(--blue);
  font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: 1px;
  padding: 6px 16px; border-radius: 50px; margin-bottom: 16px;
}
.section-title {
  font-family: 'Fredoka One', cursive;
  font-size: clamp(30px, 4vw, 46px);
  color: var(--dark); line-height: 1.2; margin-bottom: 14px;
}
.section-sub {
  font-size: 17px; color: var(--mid);
  max-width: 560px; line-height: 1.7; margin-bottom: 50px;
}

/* ── SHARED BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 22px; border-radius: 50px;
  font-family: 'Nunito', sans-serif; font-weight: 800; font-size: 15px;
  cursor: pointer; border: none; text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover             { transform: translateY(-2px); }
.btn-outline           { background: transparent; border: 2px solid var(--blue); color: var(--blue); }
.btn-primary           { background: var(--orange); color: #fff; box-shadow: 0 4px 16px rgba(255,107,53,.35); }
.btn-primary:hover     { box-shadow: 0 6px 22px rgba(255,107,53,.45); }
.btn-blue              { background: var(--blue); color: #fff; box-shadow: 0 4px 16px rgba(26,86,219,.35); }
.btn-green             { background: var(--green); color: #fff; box-shadow: 0 4px 16px rgba(14,159,110,.35); }

/* ── NAVBAR ── */
nav {
  position: sticky; top: 0; z-index: 1000;
  background: var(--white); border-bottom: 1.5px solid #e8eaf0;
  padding: 0 5%; display: flex; align-items: center; justify-content: space-between;
  height: 70px; box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.logo              { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-icon         {
  width: 42px; height: 42px;
  background: linear-gradient(135deg, var(--blue), var(--green));
  border-radius: 12px; display: flex; align-items: center; justify-content: center;
  color: #fff; font-family: 'Fredoka One', cursive; font-size: 20px;
}
.logo-text         { font-family: 'Fredoka One', cursive; font-size: 22px; color: var(--blue); }
.logo-text span    { color: var(--orange); }
.nav-links         { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-links a {
  text-decoration: none; color: var(--mid); font-weight: 700; font-size: 15px;
  padding: 8px 14px; border-radius: 10px; transition: background .2s, color .2s;
}
.nav-links a:hover,
.nav-links a.active { background: var(--blue-light); color: var(--blue); }
.nav-actions       { display: flex; gap: 10px; align-items: center; }

/* ── FOOTER ── */
footer { background: #0d1117; padding: 60px 5% 30px; color: rgba(255,255,255,.6); }
.footer-top {
  display: grid; grid-template-columns: 2fr repeat(4, 1fr); gap: 32px;
  margin-bottom: 40px; padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .logo-text     { color: #fff; }
.footer-brand p              { font-size: 14px; line-height: 1.7; margin-top: 16px; max-width: 260px; }
.footer-col h4               { color: #fff; font-weight: 800; font-size: 14px; margin-bottom: 16px; text-transform: uppercase; letter-spacing: .5px; }
.footer-col a                { display: block; color: rgba(255,255,255,.5); text-decoration: none; font-size: 14px; font-weight: 600; margin-bottom: 10px; transition: color .2s; }
.footer-col a:hover          { color: #fff; }
.footer-bottom               { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-copy                 { font-size: 13px; }
.footer-badges               { display: flex; gap: 12px; }
.footer-badge {
  display: flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
  border-radius: 50px; padding: 6px 14px;
  font-size: 12px; font-weight: 700; color: rgba(255,255,255,.7);
}
.social-links  { display: flex; gap: 10px; }
.social-link {
  width: 36px; height: 36px; background: rgba(255,255,255,.08);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 15px; cursor: pointer; transition: background .2s; text-decoration: none; color: rgba(255,255,255,.6);
}
.social-link:hover { background: rgba(255,255,255,.15); }

/* ── SHARED MODAL BASE ── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(10,20,50,.55); z-index: 2000;
  display: none; align-items: center; justify-content: center;
  padding: 20px; backdrop-filter: blur(4px);
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--white); border-radius: 24px; width: 100%; max-width: 600px;
  max-height: 90vh; overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,.2);
}
.modal-header  { padding: 28px 28px 0; display: flex; align-items: center; justify-content: space-between; }
.modal-title   { font-family: 'Fredoka One', cursive; font-size: 26px; color: var(--dark); }
.modal-close {
  width: 36px; height: 36px; border-radius: 50%; background: var(--bg); border: none;
  cursor: pointer; font-size: 18px; display: flex; align-items: center; justify-content: center;
  color: var(--mid); transition: .2s;
}
.modal-close:hover { background: #fde8e8; color: #e53e3e; }
.modal-body    { padding: 24px 28px 28px; }
.modal-footer  { display: flex; gap: 12px; justify-content: flex-end; padding-top: 16px; }

/* ── SHARED FORM FIELDS ── */
.form-grid   { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-full   { grid-column: 1 / -1; }
.form-divider { height: 1px; background: #e8eaf0; margin: 8px 0; }
.field       { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; font-weight: 800; color: var(--mid); text-transform: uppercase; letter-spacing: .4px; }
.field input, .field select, .field textarea {
  padding: 11px 14px; border: 2px solid #e8eaf0; border-radius: 12px;
  font-family: 'Nunito', sans-serif; font-size: 14px; font-weight: 600;
  color: var(--dark); background: var(--white); outline: none;
  transition: border-color .2s; width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue); }
.field textarea { resize: vertical; min-height: 80px; }

/* ── SCROLL REVEAL ── */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ── ANIMATIONS ── */
@keyframes fadeIn     { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes pulse      { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.4); opacity: .6; } }
@keyframes blink      { 0%,100% { opacity: 1; } 50% { opacity: .3; } }
@keyframes float      { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes floatCenter{ 0%,100% { transform: translate(-50%,-50%); } 50% { transform: translate(-50%, calc(-50% - 10px)); } }
@keyframes floatCard  { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
@keyframes shake      { 0%,100%{transform:translateX(0);}20%{transform:translateX(-8px);}40%{transform:translateX(8px);}60%{transform:translateX(-6px);}80%{transform:translateX(6px);} }

.live-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: #4ade80; margin-right: 5px; animation: blink 1.4s infinite;
}

/* ── RESPONSIVE GLOBALS ── */
@media (max-width: 900px) {
  nav .nav-links  { display: none; }
  .footer-top     { grid-template-columns: 1fr 1fr; gap: 24px; }
  .form-grid      { grid-template-columns: 1fr; }
  .form-full      { grid-column: 1; }
}
@media (max-width: 600px) {
  .footer-top     { grid-template-columns: 1fr; gap: 20px; }
  .footer-bottom  { flex-direction: column; text-align: center; }
}