/* ========================================================
   Tutoring On Demand — shared site styles
   Used by: index.html, subjects.html, tutors.html, contact.html
   ======================================================== */

:root{
  --navy: #16213E;
  --navy-soft: #2A3A63;
  --paper: #F7F5EF;
  --paper-line: #E4E0D5;
  --teal: #2FA88F;
  --marker: #FFC93C;
  --ink-red: #E24E42;
  --white: #FFFFFF;
}

*{ box-sizing: border-box; }

body{
  margin:0;
  background: var(--paper);
  color: var(--navy);
  font-family: 'Work Sans', sans-serif;
  -webkit-font-smoothing: antialiased;
}

a{ color: inherit; }

img{ max-width: 100%; display:block; }

/* ---------- Header / nav ---------- */

.site-header{
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 24px 0;
  display:flex;
  align-items:center;
  justify-content: space-between;
}

.brand{
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand span{ color: var(--teal); }

nav a{
  text-decoration:none;
  font-size: 0.9rem;
  font-weight: 500;
  margin-left: 28px;
  color: var(--navy-soft);
}

nav a.current{ color: var(--navy); border-bottom: 2px solid var(--marker); padding-bottom: 3px; }

@media (max-width: 560px){
  .site-header{ flex-direction: column; align-items:flex-start; gap: 14px; }
  nav a{ margin-left: 0; margin-right: 20px; }
}

/* ---------- Shared layout ---------- */

.wrap{
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 24px 100px;
}

.wrap.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

@media (max-width: 860px){
  .wrap.split{ grid-template-columns: 1fr; }
  .wrap{ padding-top: 32px; }
}

.eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--teal);
  margin: 0 0 14px;
}

h1{
  font-family:'Fraunces', serif;
  font-weight: 500;
  font-size: clamp(2.1rem, 4vw, 2.9rem);
  line-height: 1.08;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}

h2{
  font-family:'Fraunces', serif;
  font-weight: 500;
  font-size: clamp(1.5rem, 2.6vw, 1.9rem);
  line-height: 1.15;
  margin: 0 0 16px;
  letter-spacing: -0.005em;
}

em{
  font-style: italic;
  font-weight: 500;
  position: relative;
  white-space: nowrap;
}

em.mark::after{
  content:"";
  position: absolute;
  left: -2px; right: -2px; bottom: 2px;
  height: 0.4em;
  background: var(--marker);
  z-index: -1;
  opacity: 0.65;
}

.lede{
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--navy-soft);
  max-width: 46ch;
  margin: 0 0 36px;
}

/* ---------- Trust list (ticks) ---------- */

.trust-list{
  list-style:none;
  padding:0;
  margin: 0 0 40px;
  display:flex;
  flex-direction: column;
  gap: 14px;
}

.trust-list li{
  display:flex;
  align-items:flex-start;
  gap: 12px;
  font-size: 0.96rem;
  color: var(--navy);
}

.tick{
  flex: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--ink-red);
  color: var(--white);
  display:flex; align-items:center; justify-content:center;
  font-family:'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  margin-top: 1px;
  transform: rotate(-6deg);
}

/* ---------- Tags ---------- */

.subject-block{
  border-top: 1px solid var(--paper-line);
  padding-top: 28px;
}

.subject-block p.label{
  font-family:'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--navy-soft);
  margin: 0 0 14px;
}

.tags{
  display:flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag{
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--white);
  border: 1px solid var(--paper-line);
  color: var(--navy-soft);
}

.tag.accent{
  background: rgba(47,168,143,0.12);
  border-color: rgba(47,168,143,0.35);
  color: var(--teal);
  font-weight: 500;
}

/* ---------- Card ---------- */

.card{
  background: var(--white);
  border: 1px solid var(--paper-line);
  border-radius: 18px;
  padding: 40px;
  box-shadow: 0 24px 60px -32px rgba(22,33,62,0.35);
}

@media (max-width: 480px){
  .card{ padding: 28px 22px; }
}

.card h2{ font-size: 1.4rem; margin: 0 0 6px; }

.card .sub{
  font-size: 0.9rem;
  color: var(--navy-soft);
  margin: 0 0 28px;
}

/* ---------- Buttons ---------- */

.btn{
  display:inline-block;
  font-family:'Fraunces', serif;
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 26px;
  border-radius: 10px;
  border: none;
  background: var(--navy);
  color: var(--white);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.btn:hover{ background: var(--navy-soft); }
.btn:active{ transform: translateY(1px); }

.btn.secondary{
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--paper-line);
}

.btn.secondary:hover{ border-color: var(--navy); background: var(--white); }

/* ---------- Forms (contact page) ---------- */

.field{ margin-bottom: 20px; }

.field label{
  display:block;
  font-family:'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--navy-soft);
  margin-bottom: 8px;
}

.field-row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 480px){
  .field-row{ grid-template-columns: 1fr; }
}

input, select, textarea{
  width: 100%;
  font-family: 'Work Sans', sans-serif;
  font-size: 0.96rem;
  padding: 12px 14px;
  border-radius: 9px;
  border: 1.5px solid var(--paper-line);
  background: var(--paper);
  color: var(--navy);
  transition: border-color 0.15s ease, background 0.15s ease;
}

textarea{ min-height: 96px; resize: vertical; }

input:focus, select:focus, textarea:focus{
  outline: none;
  border-color: var(--teal);
  background: var(--white);
}

input:focus-visible, select:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--teal);
  outline-offset: 1px;
}

.field.valid label::after{
  content: " \2713";
  color: var(--ink-red);
}

fieldset{ border: none; padding: 0; margin: 0 0 24px; }

fieldset legend{
  font-family:'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--navy-soft);
  margin-bottom: 10px;
  padding: 0;
}

.level-options{ display:flex; gap: 10px; }

.level-options label{
  flex:1;
  text-align:center;
  font-family: 'Work Sans', sans-serif;
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 10px 8px;
  border-radius: 9px;
  border: 1.5px solid var(--paper-line);
  background: var(--paper);
  cursor: pointer;
  color: var(--navy-soft);
}

.level-options input{ position: absolute; opacity: 0; pointer-events: none; }
.level-options input:checked + span{ color: var(--navy); }
.level-options label:has(input:checked){
  border-color: var(--navy);
  background: var(--white);
  color: var(--navy);
  box-shadow: inset 0 0 0 1px var(--navy);
}

button.submit{
  width: 100%;
  font-family:'Fraunces', serif;
  font-weight: 600;
  font-size: 1.02rem;
  padding: 15px 18px;
  border-radius: 10px;
  border: none;
  background: var(--navy);
  color: var(--white);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
  margin-top: 4px;
}

button.submit:hover{ background: var(--navy-soft); }
button.submit:active{ transform: translateY(1px); }
button.submit:disabled{ opacity: 0.6; cursor: default; }

.fineprint{
  font-size: 0.78rem;
  color: var(--navy-soft);
  text-align:center;
  margin-top: 14px;
}

.status-msg{
  display:none;
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 9px;
  font-size: 0.9rem;
  line-height: 1.5;
}

.status-msg.success{
  display:block;
  background: rgba(47,168,143,0.12);
  color: #1E7A67;
  border: 1px solid rgba(47,168,143,0.3);
}

.status-msg.error{
  display:block;
  background: rgba(226,78,66,0.1);
  color: #B23A2F;
  border: 1px solid rgba(226,78,66,0.3);
}

/* ---------- Subject grid (subjects page) ---------- */

.subject-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 32px 0 48px;
}

@media (max-width: 640px){
  .subject-grid{ grid-template-columns: 1fr; }
}

.subject-card{
  background: var(--white);
  border: 1px solid var(--paper-line);
  border-radius: 14px;
  padding: 22px 24px;
}

.subject-card .subject-eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--teal);
  margin: 0 0 10px;
}

.subject-card h3{
  font-family:'Fraunces', serif;
  font-weight: 500;
  font-size: 1.15rem;
  margin: 0 0 12px;
}

.subject-card ul{
  list-style:none;
  padding:0;
  margin:0;
  display:flex;
  flex-wrap:wrap;
  gap: 8px;
}

.subject-card li{
  font-size: 0.82rem;
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid var(--paper-line);
  color: var(--navy-soft);
}

/* ---------- Tutor cards (tutors page) ---------- */

.tutor-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

@media (max-width: 860px){
  .tutor-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px){
  .tutor-grid{ grid-template-columns: 1fr; }
}

.tutor-card{
  background: var(--white);
  border: 1px solid var(--paper-line);
  border-radius: 16px;
  overflow: hidden;
  display:flex;
  flex-direction: column;
}

.tutor-photo{
  aspect-ratio: 4 / 3;
  width: 100%;
  background: var(--navy);
  display:flex;
  align-items:center;
  justify-content:center;
  color: rgba(255,255,255,0.5);
  font-family:'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  text-align:center;
  padding: 16px;
  object-fit: cover;
}

.tutor-body{ padding: 20px 22px 24px; }

.tutor-body .subject-eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal);
  margin: 0 0 8px;
}

.tutor-body h3{
  font-family:'Fraunces', serif;
  font-weight: 500;
  font-size: 1.2rem;
  margin: 0 0 4px;
}

.tutor-body .grade{
  font-size: 0.82rem;
  color: var(--navy-soft);
  margin: 0 0 12px;
}

.tutor-body p.bio{
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--navy-soft);
  margin: 0;
}

.empty-state{
  text-align:center;
  padding: 48px 24px;
  background: var(--white);
  border: 1.5px dashed var(--paper-line);
  border-radius: 16px;
  color: var(--navy-soft);
}

.empty-state p{ margin: 0 0 18px; font-size: 0.95rem; }

/* ---------- CTA band ---------- */

.cta-band{
  margin-top: 64px;
  background: var(--navy);
  border-radius: 20px;
  padding: 48px;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-band h2{ color: var(--white); margin:0; }
.cta-band p{ color: rgba(255,255,255,0.7); margin: 8px 0 0; font-size: 0.95rem; }

/* ---------- Footer ---------- */

footer{
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px 40px;
  font-size: 0.8rem;
  color: var(--navy-soft);
  text-align:center;
}

@media (prefers-reduced-motion: reduce){
  *{ transition: none !important; }
}