/* ===================================================
   PORTFOLIO — style.css
   Palette: White #FFFFFF | Sky #E8F4FD | Blue #2E86C1
            Teal #48C9B0   | Dark #1A2332 | Gray #F8FAFC
=================================================== */

/* ===== CSS VARIABLES ===== */
:root {
  --white:       #FFFFFF;
  --sky:         #E8F4FD;
  --sky-mid:     #D0EBFA;
  --blue:        #2E86C1;
  --blue-dark:   #1A5276;
  --blue-light:  #5DADE2;
  --teal:        #48C9B0;
  --teal-light:  #A3E4D7;
  --dark:        #1A2332;
  --dark-mid:    #2C3E50;
  --gray:        #F8FAFC;
  --gray-mid:    #E2EDF6;
  --text-main:   #1A2332;
  --text-sub:    #5D7A96;
  --text-muted:  #8BA8C0;
  --border:      #D8ECF8;
  --shadow-sm:   0 2px 8px rgba(46,134,193,0.08);
  --shadow-md:   0 6px 24px rgba(46,134,193,0.12);
  --shadow-lg:   0 16px 48px rgba(46,134,193,0.16);
  --radius-sm:   8px;
  --radius-md:   16px;
  --radius-lg:   24px;
  --transition:  0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-display: 'Poppins', sans-serif;
  --font-body:    'Inter', sans-serif;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-body); }
input, textarea { font-family: var(--font-body); }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--sky); }
::-webkit-scrollbar-thumb { background: var(--blue); border-radius: 3px; }

/* ===== CONTAINER ===== */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== UTILITY ===== */
.mt-1 { margin-top: 1rem; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: var(--white);
  box-shadow: 0 4px 18px rgba(46,134,193,0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(46,134,193,0.45);
}

.btn-outline {
  background: transparent;
  color: var(--blue);
  border: 2px solid var(--blue);
}
.btn-outline:hover {
  background: var(--blue);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-light {
  background: var(--white);
  color: var(--blue);
  font-weight: 700;
}
.btn-light:hover {
  background: var(--sky);
  transform: translateY(-2px);
}

/* ===== NAVBAR ===== */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 14px 0;
  transition: all var(--transition);
}

#header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
  padding: 10px 0;
}

.navbar {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--dark);
  letter-spacing: -0.5px;
}
.logo-bracket { color: var(--blue); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--dark-mid);
  padding: 8px 14px;
  border-radius: 50px;
  transition: all var(--transition);
  position: relative;
}
.nav-link:hover,
.nav-link.active {
  color: var(--blue);
  background: var(--sky);
}

.nav-cta {
  background: linear-gradient(135deg, var(--blue), var(--teal));
  color: var(--white) !important;
  padding: 8px 20px;
  margin-left: 8px;
}
.nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  background: linear-gradient(135deg, var(--blue), var(--teal)) !important;
}

.hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--sky);
  border: 1.5px solid var(--border);
  color: var(--dark);
  font-size: 1.45rem;
  line-height: 1;
  font-weight: 900;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  padding: 0 0 3px 0;
}
.hamburger:hover,
.hamburger.open {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, var(--white) 0%, var(--sky) 50%, var(--sky-mid) 100%);
  padding-top: 80px;
}

.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }

.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.12;
}
.shape-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--blue), transparent);
  top: -150px; right: -100px;
}
.shape-2 {
  width: 320px; height: 320px;
  background: radial-gradient(circle, var(--teal), transparent);
  bottom: -80px; left: -60px;
}
.shape-3 {
  width: 180px; height: 180px;
  background: radial-gradient(circle, var(--blue-light), transparent);
  top: 40%; left: 40%;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 60px;
  width: 100%;
  padding-top: 40px;
  padding-bottom: 80px;
}

.hero-greeting {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-sub);
  margin-bottom: 10px;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.15;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--dark) 40%, var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-roles {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.role-badge {
  padding: 6px 16px;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: 50px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--dark-mid);
  box-shadow: var(--shadow-sm);
}

.hero-desc {
  max-width: 520px;
  color: var(--text-sub);
  font-size: 1.05rem;
  line-height: 1.75;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Avatar Visual */
.hero-visual { position: relative; flex-shrink: 0; }

.avatar-wrapper {
  position: relative;
  width: 280px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-ring {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 3px solid transparent;
  background: linear-gradient(135deg, var(--blue), var(--teal)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  animation: spin 12s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.avatar-img {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sky), var(--sky-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  color: var(--blue);
  border: 4px solid var(--white);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.avatar-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.floating-badge {
  position: absolute;
  background: var(--white);
  padding: 8px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--dark);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}
.badge-top  { top: 10px;    right: -20px; animation: float 3s ease-in-out infinite; }
.badge-bottom { bottom: 20px; left: -24px;  animation: float 3s ease-in-out infinite 1.5s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

/* Scroll Down Arrow */
.scroll-down {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  box-shadow: var(--shadow-sm);
  animation: bounce 2s ease-in-out infinite;
  transition: all var(--transition);
}
.scroll-down:hover { background: var(--blue); color: var(--white); }

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(-8px); }
}

/* ===== SECTIONS ===== */
.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--gray);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--blue);
  background: var(--sky);
  padding: 5px 16px;
  border-radius: 50px;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 12px;
}

.section-subtitle {
  color: var(--text-sub);
  font-size: 1.05rem;
  max-width: 520px;
  margin: 0 auto;
}

/* ===== REVEAL ANIMATION ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  align-items: start;
}

.about-card {
  position: sticky;
  top: 100px;
}

.about-photo-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.photo-frame {
  width: 240px;
  height: 240px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--sky), var(--sky-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  color: var(--blue);
  border: 3px solid var(--border);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-social {
  display: flex;
  gap: 10px;
}

.social-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--white);
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  font-size: 0.9rem;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.social-icon:hover {
  background: var(--blue);
  color: var(--white);
  transform: translateY(-3px);
  border-color: var(--blue);
}

.about-name {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 4px;
}

.about-tagline {
  color: var(--blue);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 20px;
}

.about-bio {
  color: var(--text-sub);
  margin-bottom: 14px;
  font-size: 0.97rem;
  line-height: 1.8;
}

.about-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 24px 0;
  padding: 24px;
  background: var(--gray);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.detail-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.detail-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--sky);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.detail-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 600;
}

.detail-value {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--dark);
}

.skills-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--dark);
  margin-bottom: 12px;
}

.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.skill-tag {
  padding: 6px 14px;
  background: linear-gradient(135deg, var(--sky), var(--sky-mid));
  border: 1.5px solid var(--border);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue-dark);
  transition: all var(--transition);
}
.skill-tag:hover {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
  transform: translateY(-2px);
}

/* ===== TABS ===== */
.tab-nav {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 40px;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  border-radius: 50px;
  border: 2px solid var(--border);
  background: var(--white);
  color: var(--text-sub);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
}
.tab-btn.active, .tab-btn:hover {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}

.tab-content {
  display: none;
}
.tab-content.active {
  display: block;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== ACHIEVEMENTS ===== */
.ach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.ach-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  transition: all var(--transition);
  overflow: hidden;
}
.ach-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--teal));
}
.ach-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.ach-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--icon-color) 15%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--icon-color);
  margin-bottom: 14px;
}

.ach-year {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 4px;
  display: block;
}

.ach-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--dark);
  margin-bottom: 6px;
}

.ach-org {
  font-size: 0.85rem;
  color: var(--blue);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.ach-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.7;
}

.ach-badge {
  position: absolute;
  top: 16px; right: 16px;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
}
.ach-badge.gold   { background: #FEF3C7; color: #D97706; }
.ach-badge.purple { background: #EDE9FE; color: #7C3AED; }
.ach-badge.green  { background: #D1FAE5; color: #059669; }
.ach-badge.red    { background: #FEE2E2; color: #DC2626; }

/* ===== CERTIFICATES ===== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

.cert-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition);
}
.cert-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-light);
}

.cert-logo {
  font-size: 2.2rem;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--gray);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cert-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 3px;
}

.cert-issuer {
  font-size: 0.82rem;
  color: var(--blue);
  font-weight: 500;
  margin-bottom: 4px;
}

.cert-date {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}

.cert-link {
  margin-left: auto;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--sky);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: all var(--transition);
}
.cert-link:hover {
  background: var(--blue);
  color: var(--white);
}

/* ===== TIMELINE ===== */
.timeline {
  position: relative;
  padding-left: 36px;
  max-width: 860px;
  margin: 0 auto;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 10px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--blue), var(--teal));
  border-radius: 1px;
}

.timeline-item {
  position: relative;
  margin-bottom: 36px;
}

.timeline-dot {
  position: absolute;
  left: -30px;
  top: 22px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--blue);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 3px var(--sky-mid);
}

.timeline-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--transition);
}
.timeline-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-light);
}

.timeline-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 16px;
}

.tl-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.tl-work      { background: #EBF5FB; color: var(--blue); }
.tl-project   { background: #E8F8F5; color: var(--teal); }
.tl-freelance { background: #FEF9E7; color: #D4AC0D; }

.tl-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--dark);
  margin-bottom: 4px;
}

.tl-company, .tl-period {
  font-size: 0.87rem;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 2px;
}

.tl-type {
  margin-left: auto;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--sky);
  color: var(--blue-dark);
  white-space: nowrap;
  flex-shrink: 0;
}

.tl-bullets {
  list-style: none;
  padding-left: 0;
  margin-bottom: 14px;
}
.tl-bullets li {
  font-size: 0.9rem;
  color: var(--text-sub);
  padding: 4px 0 4px 18px;
  position: relative;
  line-height: 1.65;
}
.tl-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--teal);
  font-size: 0.85rem;
}

.tl-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tl-tech span {
  padding: 3px 10px;
  background: var(--sky);
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--blue-dark);
}

/* ===== ORGANIZATION ===== */
.org-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.org-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all var(--transition);
}
.org-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.org-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 16px;
}

.org-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--white);
  flex-shrink: 0;
}

.org-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--dark);
  margin-bottom: 3px;
}

.org-name {
  font-size: 0.87rem;
  color: var(--blue);
  font-weight: 600;
  margin-bottom: 2px;
}

.org-period {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.org-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.75;
  margin-bottom: 16px;
  padding-top: 4px;
  border-top: 1px solid var(--border);
}

.org-achievements li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-sub);
  margin-bottom: 8px;
}
.org-achievements li i {
  color: var(--teal);
  font-size: 0.9rem;
  margin-top: 2px;
  flex-shrink: 0;
}

/* ===== VOLUNTEER ===== */
.volunteer-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 860px;
  margin: 0 auto;
}

.vol-card {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: stretch;
  overflow: hidden;
  transition: all var(--transition);
}
.vol-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.vol-stripe {
  width: 5px;
  flex-shrink: 0;
}

.vol-icon {
  width: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--blue);
  background: var(--sky);
  flex-shrink: 0;
}

.vol-content {
  padding: 22px 24px;
  flex: 1;
}

.vol-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
}

.vol-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--dark);
  margin-bottom: 3px;
}

.vol-org {
  font-size: 0.87rem;
  color: var(--blue);
  font-weight: 600;
}

.vol-period {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  padding: 4px 12px;
  background: var(--sky);
  border-radius: 50px;
  flex-shrink: 0;
}

.vol-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.75;
  margin-bottom: 14px;
}

.vol-impact {
  display: flex;
  gap: 24px;
}

.impact-stat {
  text-align: center;
}

.impact-num {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--blue);
}

.impact-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 600;
}

/* ===== CONTACT ===== */
.section-contact {
  background: linear-gradient(160deg, var(--blue-dark) 0%, var(--dark) 50%, var(--dark-mid) 100%);
  position: relative;
  overflow: hidden;
}

.section-contact::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(72,201,176,0.15), transparent 70%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-item > i {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: rgba(255,255,255,0.5);
  font-weight: 600;
  margin-bottom: 3px;
}

.contact-value {
  color: var(--white);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}
.contact-value:hover { color: var(--teal); }

/* Form */
.contact-form {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  margin-bottom: 7px;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-size: 0.95rem;
  transition: all var(--transition);
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.35); }

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--teal);
  background: rgba(255,255,255,0.12);
}

.form-msg {
  margin-top: 12px;
  font-size: 0.9rem;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  display: none;
}
.form-msg.success {
  display: block;
  background: rgba(72,201,176,0.2);
  color: var(--teal-light);
  border: 1px solid rgba(72,201,176,0.3);
}
.form-msg.error {
  display: block;
  background: rgba(231,76,60,0.2);
  color: #F1948A;
  border: 1px solid rgba(231,76,60,0.3);
}

/* ===== FOOTER ===== */
.footer {
  background: var(--dark);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 24px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--white);
}

.footer-copy {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}

.back-top {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--blue);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: all var(--transition);
}
.back-top:hover {
  background: var(--teal);
  transform: translateY(-3px);
}

/* ===== RESPONSIVE ===== */

/* Large Tablets */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 260px 1fr; gap: 32px; }
  .hero-content { gap: 40px; }
  .avatar-wrapper { width: 240px; height: 240px; }
  .avatar-img { width: 200px; height: 200px; }
}

/* Tablets */
@media (max-width: 860px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  .hero-text { order: 2; }
  .hero-visual { order: 1; display: flex; justify-content: center; }
  .hero-roles { justify-content: center; }
  .hero-actions { justify-content: center; }
  .hero-desc { margin: 0 auto 28px; }

  .about-grid { grid-template-columns: 1fr; }
  .about-card { position: static; }
  .about-photo-block { flex-direction: row; gap: 24px; }
  .photo-frame { width: 120px; height: 120px; font-size: 3rem; }
  .about-details { grid-template-columns: 1fr; }

  .contact-grid { grid-template-columns: 1fr; gap: 32px; }

  .vol-top { flex-direction: column; gap: 8px; }

  .timeline { padding-left: 28px; }
  .timeline-dot { left: -24px; }
  .timeline-header { flex-wrap: wrap; }
  .tl-type { margin-left: 0; }
}

/* Mobile */
@media (max-width: 600px) {
  .section { padding: 72px 0; }
  .section-header { margin-bottom: 40px; }

  .nav-links {
    display: none;
    position: fixed;
    top: 60px; right: 16px; left: auto;
    width: 220px;
    background: #ffffff;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    flex-direction: column;
    gap: 0;
    padding: 8px;
    box-shadow: 0 12px 40px rgba(46,134,193,0.18);
    z-index: 999;
  }
  .nav-links.open {
    display: flex;
    animation: dropIn 0.2s ease forwards;
  }
  @keyframes dropIn {
    from { opacity: 0; transform: translateY(-8px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
  }
  .nav-link {
    border-radius: 10px;
    padding: 11px 16px;
    width: 100%;
    text-align: left;
    font-size: 0.93rem;
    font-weight: 500;
    color: var(--dark-mid);
    border-bottom: none;
    transition: all 0.2s;
  }
  .nav-link:hover, .nav-link.active {
    background: var(--sky);
    color: var(--blue);
  }
  .nav-cta {
    margin: 4px 0 0 0;
    border-radius: 10px;
    text-align: center;
    padding: 11px 16px;
    font-size: 0.93rem;
    background: linear-gradient(135deg, var(--blue), var(--teal));
    color: #fff !important;
  }
  .nav-cta:hover {
    opacity: 0.9;
    transform: none;
    background: linear-gradient(135deg, var(--blue), var(--teal)) !important;
  }
  /* Divider before Contact */
  .nav-links li:last-child {
    border-top: 1px solid var(--border);
    margin-top: 4px;
    padding-top: 4px;
  }

  .hamburger { display: flex; }

  /* Always show header bg on mobile so dropdown sits below it cleanly */
  #header {
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-sm);
    padding: 10px 0;
  }

  .avatar-wrapper { width: 200px; height: 200px; }
  .avatar-img { width: 170px; height: 170px; font-size: 4.5rem; }

  .ach-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .org-grid { grid-template-columns: 1fr; }

  .vol-card { flex-direction: column; }
  .vol-stripe { width: 100%; height: 5px; }
  .vol-icon { width: 100%; height: 48px; }
  .vol-impact { gap: 12px; }

  .timeline-header { flex-direction: column; }
  .tl-type { align-self: flex-start; }

  .tab-nav { flex-direction: row; }
  .tab-btn { padding: 9px 18px; font-size: 0.88rem; }

  .footer-inner { flex-direction: column; text-align: center; }

  .about-photo-block { flex-direction: column; align-items: center; }
  .about-details { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: center; }
}

/* Very small screens */
@media (max-width: 380px) {
  .btn { padding: 11px 20px; font-size: 0.88rem; }
  .hero-name { font-size: 2rem; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}
/* =========================================
   SPA — page switching (tambahan minimal)
========================================= */
.spa-page          { display: none; animation: pageIn .3s ease; }
.spa-page.active   { display: block; }
#page-home.active  { display: flex; flex-direction: column; min-height: 100vh; }
#page-home .hero   { flex: 1; }

@keyframes pageIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

[data-page], .spa-link { cursor: pointer; }

/* Mobile dropdown nav */
@media (max-width: 600px) {
  #header {
    background: rgba(255,255,255,.98) !important;
    backdrop-filter: blur(14px);
    box-shadow: 0 1px 0 var(--border);
    padding: 10px 0 !important;
  }
  .hamburger { display: flex; }
  .nav-links {
    display: none;
    position: fixed;
    background: #fff;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    flex-direction: column;
    padding: 8px;
    box-shadow: 0 12px 40px rgba(46,134,193,.18);
    z-index: 999;
    width: 220px;
    gap: 0;
  }
  .nav-links.open { display: flex; animation: dropIn .2s ease; }
  @keyframes dropIn {
    from { opacity:0; transform: translateY(-8px) scale(.97); }
    to   { opacity:1; transform: none; }
  }
  .nav-link { border-radius:10px; padding:11px 16px; width:100%; text-align:left; border-bottom:none; }
  .nav-cta  { margin:4px 0 0; border-radius:10px; text-align:center; }
  #navLinks li:last-child { border-top:1px solid var(--border); margin-top:4px; padding-top:4px; }
}

.ach-photo {
    width: 120px;
    height: auto;
    border-radius: 10px;
    cursor: pointer;
    margin-top: 15px;
    transition: transform 0.3s ease;
}

.ach-photo:hover {
    transform: scale(1.05);
}

/* Modal */
.image-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    justify-content: center;
    align-items: center;
}

.modal-content {
    max-width: 90%;
    max-height: 90%;
    border-radius: 12px;
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 35px;
    color: white;
    font-size: 40px;
    cursor: pointer;
}
.cert-photo {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    margin-left: 12px;
    transition: transform 0.3s ease;
}

.cert-photo:hover {
    transform: scale(1.05);
}

.cert-card {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.cert-photo {
    width: 100%;
    max-width: 180px;
    height: auto;
    border-radius: 12px;
    cursor: pointer;
    margin-top: 15px;
    transition: transform 0.3s ease;
}

.cert-photo:hover {
    transform: scale(1.03);
}
.cert-photo {
    display: block;
    margin: 15px auto 0;
}