/* ============================================================
   Trauma Society of Nepal (TSN): Website Stylesheet
   Design tokens derived from the TSN emblem:
   navy (sky / night), red (the caduceus "S": urgency and care),
   green (the tree of life: growth and recovery),
   gold (Himalayan sunrise: hope)
   ============================================================ */

:root{
  --navy:        #0d2c54;
  --navy-deep:   #071b38;
  --navy-soft:   #1f4276;
  --red:         #c0392b;
  --green:       #6f9c3d;
  --green-soft:  #e7efdb;
  --gold:        #e0a526;
  --gold-soft:   #f8e9c9;
  --cream:       #f7f5f0;
  --ink:         #18233a;
  --slate:       #5c6b85;
  --slate-light: #93a1b8;
  --white:       #ffffff;
  --border:      #e3e1da;

  --font-display: "Fraunces", "Georgia", serif;
  --font-body:    "Source Sans 3", "Segoe UI", Arial, sans-serif;
  --font-mono:    "IBM Plex Mono", "Courier New", monospace;

  --max-width: 1180px;
  --radius: 4px;
  --shadow: 0 10px 30px -15px rgba(13,44,84,0.35);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a{ color: var(--navy); text-decoration: none; }
a:hover{ color: var(--red); }

h1,h2,h3,h4{
  font-family: var(--font-display);
  color: var(--navy);
  line-height: 1.15;
  margin: 0 0 0.5em;
  font-weight: 600;
}

h1{ font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 700; }
h2{ font-size: clamp(1.7rem, 3.4vw, 2.4rem); }
h3{ font-size: 1.3rem; }

p{ margin: 0 0 1em; }

.container{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  font-weight: 600;
  display: inline-block;
  margin-bottom: 0.75rem;
}

.section{ padding: 4.5rem 0; }
.section--tight{ padding: 3rem 0; }
.section--cream{ background: var(--cream); }
.section--navy{ background: var(--navy); color: var(--white); }
.section--navy h2, .section--navy h3{ color: var(--white); }
.section--navy a{ color: var(--gold); }
.section--navy a:hover{ color: var(--white); }

.lede{
  font-size: 1.15rem;
  color: var(--slate);
  max-width: 720px;
}
.section--navy .lede{ color: var(--slate-light); }

/* ============================================================
   Buttons
   ============================================================ */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.85em 1.7em;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.98rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.18s ease;
  font-family: var(--font-body);
}
.btn--gold{
  background: var(--gold);
  color: var(--navy-deep);
  border-color: var(--gold);
}
.btn--gold:hover{
  background: var(--white);
  color: var(--navy-deep);
  border-color: var(--white);
}
.btn--outline{
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.55);
}
.btn--outline:hover{
  border-color: var(--white);
  background: rgba(255,255,255,0.08);
}
.btn--navy{
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}
.btn--navy:hover{
  background: var(--navy-deep);
  border-color: var(--navy-deep);
}

/* ============================================================
   Header / Navigation
   ============================================================ */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.nav{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.6rem 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav__brand{
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--navy);
  font-size: 1.05rem;
  line-height: 1.1;
}
.nav__brand img{ height: 68px; width: auto; }
.nav__brand span{ display: block; }
.nav__brand .sub{
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--slate);
  font-weight: 500;
  text-transform: uppercase;
}

.nav__links{
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.6rem 1.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav__links a{
  color: var(--ink);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.4rem 0;
  position: relative;
  white-space: nowrap;
}
.nav__links > li{ margin-left: 0.6rem; }
.nav__links > li:first-child{ margin-left: 0; }
.nav__links a:hover{ color: var(--red); }

/* Dropdown */
.has-dropdown{ position: relative; }
.dropdown{
  list-style: none;
  margin: 0;
  padding: 0.5rem;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  min-width: 220px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: all 0.15s ease;
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown{
  opacity: 1; visibility: visible; transform: translateY(0);
}
.dropdown a{
  display: block;
  padding: 0.55rem 0.8rem;
  border-radius: 3px;
  font-weight: 500;
  white-space: nowrap;
}
.dropdown a:hover{ background: var(--cream); color: var(--navy); }

.nav__toggle{
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.nav__toggle span{
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all 0.2s ease;
}
.nav__toggle.is-open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2){ opacity: 0; }
.nav__toggle.is-open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   Hero
   ============================================================ */
.hero{
  position: relative;
  color: var(--white);
  min-height: 86vh;
  display: flex;
  align-items: center;
  background: var(--navy-deep);
  overflow: hidden;
}
.hero__bg{
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.hero__overlay{
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  inset: 0;
  background: linear-gradient(115deg, rgba(7,27,56,0.94) 0%, rgba(7,27,56,0.78) 38%, rgba(13,44,84,0.45) 75%);
}
.hero__content{
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 24px 5rem;
  width: 100%;
}
.hero__content .eyebrow{ color: var(--gold); }
.hero h1{ color: var(--white); max-width: 760px; }
.hero p.lede{ color: #d6dde8; max-width: 560px; }
.hero__ctas{
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.8rem;
}

/* Page header (non-home pages) */
.page-header{
  background: var(--navy-deep);
  color: var(--white);
  padding: 4rem 0 3rem;
  position: relative;
  overflow: hidden;
}
.page-header h1{ color: var(--white); margin-bottom: 0.4rem; }
.page-header .lede{ color: #d6dde8; }
.page-header .eyebrow{ color: var(--gold); }

/* ============================================================
   Stats strip
   ============================================================ */
.stats{
  background: var(--navy);
  color: var(--white);
  padding: 2.6rem 0;
}
.stats__grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}
.stats__num{
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--gold);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.stats__label{
  font-size: 0.85rem;
  color: #c4cee0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.35rem;
}

/* ============================================================
   Cards
   ============================================================ */
.grid{ display: grid; gap: 1.75rem; }
.grid--3{ grid-template-columns: repeat(3, 1fr); }
.grid--2{ grid-template-columns: repeat(2, 1fr); }
.grid--4{ grid-template-columns: repeat(4, 1fr); }

.card{
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover{ box-shadow: var(--shadow); transform: translateY(-3px); }
.card__icon{
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green);
  margin-bottom: 1.1rem;
}
.card__icon svg{ width: 24px; height: 24px; }
.card h3{ margin-bottom: 0.5rem; }
.card p{ color: var(--slate); margin-bottom: 0; font-size: 0.97rem; }

/* ============================================================
   Tree-branch divider (signature motif)
   ============================================================ */
.branch-divider{
  display: block;
  width: 100%;
  height: 48px;
  margin: 0;
}
.branch-divider .branch-line{ stroke: var(--green); stroke-width: 1.5; fill: none; }
.branch-divider .branch-leaf{ fill: var(--gold); }
.section--navy .branch-divider .branch-line{ stroke: rgba(231,239,219,0.35); }
.section--navy .branch-divider .branch-leaf{ fill: var(--gold); }

/* ============================================================
   Two-column content blocks
   ============================================================ */
.split{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}
.split img{ border-radius: var(--radius); box-shadow: var(--shadow); }
.split--reverse .split__media{ order: 2; }

/* ============================================================
   Quote block
   ============================================================ */
.quote-block{
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: center;
}
.quote-block img{
  border-radius: var(--radius);
  aspect-ratio: 3/4;
  object-fit: cover;
}
.quote-block blockquote{
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.4rem;
  line-height: 1.5;
  color: var(--navy);
  font-style: italic;
  border-left: 4px solid var(--gold);
  padding-left: 1.4rem;
}
.quote-block cite{
  display: block;
  margin-top: 1rem;
  font-style: normal;
  font-weight: 700;
  font-family: var(--font-body);
  color: var(--ink);
}
.quote-block cite span{
  display: block;
  font-weight: 400;
  color: var(--slate);
  font-size: 0.9rem;
  margin-top: 0.15rem;
}

/* ============================================================
   President's message page
   ============================================================ */
.president{
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: start;
}
.president__portrait{
  position: sticky;
  top: 100px;
  text-align: center;
}
.president__portrait img{
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}
.president__portrait .name{ font-weight: 700; color: var(--navy); }
.president__portrait .role{ color: var(--slate); font-size: 0.92rem; }
.president__body h3{ margin-top: 1.6rem; }
.president__body ul{ padding-left: 1.2rem; }
.president__body li{ margin-bottom: 0.4rem; }
.signature{
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--navy);
  margin-top: 1.5rem;
}

/* ============================================================
   Team / member grid
   ============================================================ */
.team-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.6rem;
}
.team-card{ text-align: center; }
.team-card__photo{
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 0.7rem;
  border: 1px solid var(--border);
}
.team-card__name{
  font-weight: 700;
  color: var(--navy);
  font-size: 0.98rem;
  margin: 0;
}
.team-card__role{
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 0.2rem;
}
.team-card__sub{
  color: var(--slate);
  font-size: 0.82rem;
  margin-top: 0.1rem;
}

.team-section{ margin-bottom: 3.5rem; }
.team-section__head{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.6rem;
  border-bottom: 2px solid var(--cream);
  padding-bottom: 0.8rem;
}
.team-section__head h2{ margin: 0; }
.team-section__count{
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--slate);
}

.patron-card{
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 2rem;
  align-items: center;
  background: var(--cream);
  border-radius: var(--radius);
  padding: 2rem;
}
.patron-card img{
  border-radius: var(--radius);
  aspect-ratio: 1/1;
  object-fit: cover;
}

/* ============================================================
   Membership page
   ============================================================ */
.membership-card{
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.2rem;
}
.membership-card h3{
  display: flex; align-items: center; gap: 0.6rem;
}
.membership-card .badge{
  display: inline-block;
  background: var(--gold-soft);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25em 0.7em;
  border-radius: 999px;
  font-weight: 700;
}
.checklist{ list-style: none; padding: 0; margin: 1rem 0; }
.checklist li{
  padding-left: 1.7rem;
  position: relative;
  margin-bottom: 0.6rem;
  color: var(--slate);
}
.checklist li::before{
  content: "";
  position: absolute;
  left: 0; top: 0.45em;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--green);
}

/* ============================================================
   Gallery
   ============================================================ */
.gallery-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}
.gallery-grid figure{ margin: 0; }
.gallery-grid img{
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius);
}
.gallery-grid figcaption{
  margin-top: 0.6rem;
  font-size: 0.88rem;
  color: var(--slate);
}
.gallery-grid .span-2{ grid-column: span 2; }
.gallery-grid .span-2 img{ height: 280px; }

/* ============================================================
   Contact
   ============================================================ */
.contact-grid{
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 3rem;
}
.contact-info dt{
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--green);
  margin-top: 1.4rem;
}
.contact-info dd{
  margin: 0.3rem 0 0;
  font-size: 1.05rem;
  color: var(--navy);
  font-weight: 600;
}
.copy-email-btn{
  display: inline-block;
  margin-left: 0.6rem;
  padding: 0.2em 0.7em;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--green);
  background: var(--green-soft);
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  vertical-align: middle;
  transition: background 0.15s ease, color 0.15s ease;
}
.copy-email-btn:hover{ background: var(--green); color: var(--white); }
.copy-email-btn.is-copied{ background: var(--green); color: var(--white); }
.form-field{ margin-bottom: 1.2rem; }
.form-field label{
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
  font-size: 0.92rem;
  color: var(--ink);
}
.form-field input,
.form-field textarea,
.form-field select{
  width: 100%;
  padding: 0.75em 0.9em;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--white);
  color: var(--ink);
}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus{
  outline: 2px solid var(--green);
  outline-offset: 1px;
  border-color: var(--green);
}
.form-field textarea{ resize: vertical; min-height: 120px; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer{
  background: var(--navy-deep);
  color: #c4cee0;
  padding: 3.5rem 0 1.5rem;
}
.footer-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-brand{ display: flex; gap: 1rem; align-items: flex-start; }
.footer-brand a{ display: block; flex: none; }
.footer-brand img{ height: 84px; }
.footer-brand h4{ color: var(--white); margin-bottom: 0.2rem; font-size: 1.05rem; }
.footer-brand p{ font-size: 0.85rem; color: #aab6cc; margin: 0; }
.footer-col h5{
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 1rem;
}
.footer-col ul{ list-style: none; padding: 0; margin: 0; }
.footer-col li{ margin-bottom: 0.6rem; }
.footer-col a{ color: #c4cee0; font-size: 0.92rem; }
.footer-col a:hover{ color: var(--gold); }
.footer-bottom{
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.5rem;
  font-size: 0.85rem;
  color: #8fa0bd;
}
.footer-bottom a{ color: #8fa0bd; }
.footer-bottom a:hover{ color: var(--gold); }

/* ============================================================
   Misc
   ============================================================ */
.center{ text-align: center; }
.mt-0{ margin-top: 0; }
.section-head{ max-width: 720px; margin-bottom: 2.5rem; }
.section-head.center{ margin-left: auto; margin-right: auto; }
.note-box{
  background: var(--gold-soft);
  border-left: 4px solid var(--gold);
  padding: 1.1rem 1.4rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  color: var(--ink);
}
.note-box strong{ color: var(--navy); }

/* Nav "coming soon" tag */
.nav__soon{
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold);
  background: var(--gold-soft);
  border-radius: 999px;
  padding: 0.15em 0.55em;
  margin-left: 0.3rem;
  vertical-align: middle;
  font-weight: 700;
}

/* Coming soon page */
.coming-soon{
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
  padding: 2rem 0 1rem;
}
.coming-soon__icon{
  width: 68px; height: 68px;
  margin: 0 auto 1.4rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green);
}
.coming-soon__icon svg{ width: 34px; height: 34px; }
.coming-soon .badge{
  display: inline-block;
  background: var(--gold-soft);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3em 0.9em;
  border-radius: 999px;
  font-weight: 700;
  margin-bottom: 1rem;
}

/* Disabled buttons */
.btn[disabled]{ opacity: 0.6; cursor: not-allowed; }
.skip-link{
  position: absolute; left: -9999px;
}
.skip-link:focus{
  left: 1rem; top: 1rem;
  background: var(--white);
  padding: 0.5rem 1rem;
  z-index: 200;
}
a:focus-visible, button:focus-visible{
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px){
  .grid--3, .grid--4{ grid-template-columns: repeat(2, 1fr); }
  .team-grid{ grid-template-columns: repeat(3, 1fr); }
  .split, .quote-block, .president, .contact-grid{ grid-template-columns: 1fr; gap: 2rem; }
  .president__portrait{ position: static; max-width: 240px; margin: 0 auto; }
  .quote-block img{ max-width: 220px; margin: 0 auto; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .footer-brand{ grid-column: span 2; }
  .stats__grid{ grid-template-columns: repeat(2, 1fr); gap: 2rem; }
}

@media (max-width: 760px){
  .nav__links{ display: none; }
  .nav__toggle{ display: flex; }

  .nav__panel{
    position: fixed;
    top: 73px; left: 0; right: 0; bottom: 0;
    background: var(--white);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    overflow-y: auto;
    z-index: 99;
    padding: 1rem 24px 3rem;
  }
  .nav__panel.is-open{ transform: translateX(0); }
  .nav__panel .nav__links{
    display: flex;
    flex-direction: column;
    gap: 0;
    align-items: stretch;
  }
  .nav__panel .nav__links > li{
    border-bottom: 1px solid var(--border);
    margin-left: 0;
  }
  .nav__panel .nav__links a{
    display: block;
    padding: 1rem 0;
    font-size: 1.05rem;
  }
  .nav__panel .dropdown{
    position: static;
    opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none;
    padding: 0 0 0.5rem 1rem;
    display: none;
  }
  .has-dropdown.is-expanded .dropdown{ display: block; }
  .nav__panel .btn{ justify-content: center; }

  .grid--3, .grid--4, .grid--2{ grid-template-columns: 1fr; }
  .team-grid{ grid-template-columns: repeat(2, 1fr); }
  .gallery-grid{ grid-template-columns: 1fr; }
  .gallery-grid .span-2{ grid-column: span 1; }
  .gallery-grid .span-2 img{ height: 280px; }
  .patron-card{ grid-template-columns: 1fr; text-align: center; }
  .patron-card img{ max-width: 200px; margin: 0 auto; }
  .stats__grid{ grid-template-columns: repeat(2, 1fr); }
  .hero{ min-height: 100vh; }
  .hero__content{ padding: 5rem 24px 4rem; }
  h1{ font-size: 2.2rem; }
}

@media (max-width: 480px){
  .team-grid{ grid-template-columns: repeat(2, 1fr); }
}