/* ============================================================
   BIS SMART DIGITAL SOLUTIONS — Global Stylesheet
   Brand: Deep Navy · Amber Gold · Clean Professional
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700;900&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,400&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* ── Variables ───────────────────────────────────────────── */
:root {
  --navy:         #0b1929;
  --navy-mid:     #162740;
  --navy-light:   #1e3557;
  --navy-pale:    #26436e;
  --amber:        #f0a500;
  --amber-lt:     #f5c63e;
  --amber-pale:   #fef9ed;
  --amber-dim:    rgba(240,165,0,0.14);
  --amber-border: rgba(240,165,0,0.3);
  --teal:         #00bfa5;
  --off-white:    #f5f3ef;
  --white:        #ffffff;
  --body-text:    #2d3e50;
  --muted:        #6b7f92;
  --light-border: rgba(11,25,41,0.1);
  --shadow-sm:    0 2px 10px rgba(11,25,41,0.07);
  --shadow-md:    0 8px 28px rgba(11,25,41,0.11);
  --shadow-lg:    0 20px 56px rgba(11,25,41,0.15);
  --r:            10px;
  --r-lg:         16px;
  --r-xl:         24px;
  --ease:         cubic-bezier(0.4,0,0.2,1);
  --t:            0.26s;
}

/* ── Reset & Base ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'DM Sans', system-ui, sans-serif;
  color: var(--body-text);
  background: var(--off-white);
  overflow-x: hidden;
  line-height: 1.75;
}
h1,h2,h3,h4 { font-family: 'Playfair Display', Georgia, serif; color: var(--navy); line-height: 1.2; }
a { color: var(--amber); text-decoration: none; transition: color var(--t) var(--ease); }
a:hover { color: var(--amber-lt); }
img { max-width: 100%; }
ul { list-style: none; padding: 0; margin: 0; }

/* ── Typography helpers ──────────────────────────────────── */
.label-tag {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--amber);
}
.section-heading {
  font-size: clamp(1.9rem, 3.5vw, 2.7rem);
  font-weight: 900;
  color: var(--navy);
}
.section-heading em { font-style: italic; color: var(--amber); }
.lead-text {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 580px;
  line-height: 1.8;
}
.amber-rule { width: 52px; height: 3px; background: var(--amber); border-radius: 2px; margin: 0.8rem 0 1.4rem; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn-gold {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--amber); color: var(--navy);
  font-weight: 600; font-size: 0.92rem;
  padding: 12px 28px; border-radius: var(--r);
  border: 2px solid var(--amber);
  transition: all var(--t) var(--ease); cursor: pointer;
  font-family: 'DM Sans', sans-serif;
}
.btn-gold:hover {
  background: var(--amber-lt); border-color: var(--amber-lt);
  color: var(--navy); transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(240,165,0,0.28);
}
.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--amber);
  font-weight: 500; font-size: 0.92rem;
  padding: 11px 26px; border-radius: var(--r);
  border: 1.5px solid var(--amber-border);
  transition: all var(--t) var(--ease); cursor: pointer;
  font-family: 'DM Sans', sans-serif;
}
.btn-ghost:hover {
  background: var(--amber-dim); border-color: var(--amber);
  color: var(--amber); transform: translateY(-2px);
}
.btn-white {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: #fff;
  font-weight: 500; font-size: 0.92rem;
  padding: 11px 26px; border-radius: var(--r);
  border: 1.5px solid rgba(255,255,255,0.35);
  transition: all var(--t) var(--ease); cursor: pointer;
  font-family: 'DM Sans', sans-serif;
}
.btn-white:hover {
  background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.7);
  color: #fff; transform: translateY(-2px);
}

/* ── Navbar ──────────────────────────────────────────────── */
#siteNav {
  background: var(--navy);
  padding: 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: box-shadow 0.3s;
  z-index: 1050;
}
#siteNav.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.35); }

.navbar-brand { display: flex; align-items: center; gap: 11px; padding: 13px 0; }
.brand-mark {
  width: 40px; height: 40px;
  background: var(--amber); border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 500; font-size: 13px; color: var(--navy);
  flex-shrink: 0; letter-spacing: -0.5px;
}
.brand-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.18rem; font-weight: 700;
  color: #fff; line-height: 1.15;
}
.brand-name span { color: var(--amber); }
.brand-sub {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 8.5px; letter-spacing: 1.2px;
  color: rgba(255,255,255,0.35);
  text-transform: uppercase; margin-top: 1px;
}

#siteNav .nav-link {
  font-size: 0.86rem; font-weight: 500;
  color: rgba(255,255,255,0.65) !important;
  /* color: rgb(252, 251, 251) !important; */
  padding: 8px 13px !important; border-radius: 6px;
  transition: all var(--t) var(--ease); letter-spacing: 0.2px;
}
#siteNav .nav-link:hover,
#siteNav .nav-link.active { color: var(--amber) !important; background: rgba(240,165,0,0.09); }

/* ── Work With Us navbar button ── */
.nav-cta {
  background: var(--amber) !important;
  /*color: var(--navy) !important;         navy text on amber = always readable */
  color: rgb(252, 251, 251) !important;
  font-weight: 600 !important;
  padding: 8px 18px !important;
  border-radius: 7px;
}
.nav-cta:hover {
  background: var(--amber-lt) !important;
  /*color: var(--navy) !important;        keep navy on hover too */
  color: rgb(252, 251, 251) !important;
  font-weight: 600 !important;
}
 .nav-cta.active {
  background: var(--navy) !important;
  /*color: var(--navy) !important;         active page — still navy text, not white */
  color: rgb(252, 251, 251) !important;
  font-weight: 600 !important;
} 

.navbar-toggler { border: 1px solid rgba(255,255,255,0.2); padding: 6px 9px; }
.navbar-toggler-icon { background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28240,165,0,1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e"); }

/* ── Page Hero ───────────────────────────────────────────── */
.page-hero {
  background: var(--navy);
  padding: 110px 0 72px;
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.018) 0, rgba(255,255,255,0.018) 1px, transparent 1px, transparent 64px),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.018) 0, rgba(255,255,255,0.018) 1px, transparent 1px, transparent 64px);
  pointer-events: none;
}
.page-hero::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--amber) 50%, transparent 100%);
}
.hero-badge {
  display: inline-block;
  background: rgba(240,165,0,0.12); border: 1px solid var(--amber-border);
  color: var(--amber); font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px; letter-spacing: 2px; text-transform: uppercase;
  padding: 5px 14px; border-radius: 20px; margin-bottom: 1.1rem;
}
.page-hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 900;
  color: #fff; margin-bottom: 0.9rem;
}
.page-hero h1 em { font-style: italic; color: var(--amber); }
.page-hero .lead { font-size: 1.08rem; color: rgba(255,255,255,0.62); max-width: 530px; line-height: 1.8; }

/* ── Cards ───────────────────────────────────────────────── */
.card-bis {
  background: var(--white);
  border: 1px solid var(--light-border);
  border-radius: var(--r-lg);
  padding: 1.6rem 1.7rem;
  transition: all var(--t) var(--ease); height: 100%;
}
.card-bis:hover {
  border-color: var(--amber-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.card-icon-wrap {
  width: 50px; height: 50px; border-radius: var(--r);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 1.1rem; flex-shrink: 0;
}

/* ── Tech tags ───────────────────────────────────────────── */
.tech-tag {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px; background: var(--navy);
  color: var(--amber); padding: 3px 9px;
  border-radius: 4px; margin: 2px;
}
.tag-teal {
  background: #d0faf3; color: #065f46;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px; padding: 3px 9px; border-radius: 4px; margin: 2px;
  display: inline-block;
}
.tag-blue {
  background: #dbeafe; color: #1e40af;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px; padding: 3px 9px; border-radius: 4px; margin: 2px;
  display: inline-block;
}
.badge-live { background: #d0faf3; color: #065f46; font-size: 10px; font-family: 'IBM Plex Mono', monospace; padding: 3px 10px; border-radius: 20px; display: inline-block; }
.badge-dev  { background: var(--amber-pale); color: #92400e; font-size: 10px; font-family: 'IBM Plex Mono', monospace; padding: 3px 10px; border-radius: 20px; display: inline-block; }

/* ── Section wrappers ────────────────────────────────────── */
.sec-white  { background: var(--white);     padding: 84px 0; }
.sec-off    { background: var(--off-white); padding: 84px 0; }
.sec-navy   { background: var(--navy);      padding: 84px 0; }
.sec-mid    { background: var(--navy-mid);  padding: 84px 0; }

/* ── Stat cards (navy bg) ────────────────────────────────── */
.stat-box { text-align: center; padding: 2rem 1rem; }
.stat-num {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  font-weight: 900; color: var(--amber); line-height: 1;
}
.stat-lbl {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px; color: rgba(255,255,255,0.42);
  letter-spacing: 1.8px; text-transform: uppercase; margin-top: 6px;
}

/* ── Timeline ────────────────────────────────────────────── */
.timeline-wrap { position: relative; padding-left: 44px; }
.timeline-wrap::before {
  content: ''; position: absolute; left: 17px; top: 4px; bottom: 0;
  width: 2px; background: linear-gradient(180deg, var(--amber), rgba(240,165,0,0.1));
}
.tl-item { position: relative; padding-bottom: 36px; }
.tl-dot {
  position: absolute; left: -35px; top: 2px;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--amber); display: flex; align-items: center;
  justify-content: center; font-size: 15px; color: var(--navy);
  box-shadow: 0 0 0 4px var(--amber-pale); z-index: 1;
}
.tl-date {
  font-family: 'IBM Plex Mono', monospace; font-size: 10.5px;
  color: var(--amber); letter-spacing: 1px; margin-bottom: 4px;
}
.tl-card {
  background: var(--white); border: 1px solid var(--light-border);
  border-radius: var(--r-lg); padding: 1.3rem 1.5rem;
  transition: border-color var(--t) var(--ease);
}
.tl-card:hover { border-color: var(--amber-border); }

/* ── Skill pills ─────────────────────────────────────────── */
.skill-pill {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--white); border: 1px solid var(--light-border);
  border-radius: 8px; padding: 7px 13px; font-size: 13px;
  font-weight: 500; color: var(--navy);
  transition: all var(--t) var(--ease); margin: 3px; cursor: default;
}
.skill-pill:hover { border-color: var(--amber); background: var(--amber-pale); }
.skill-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--amber); flex-shrink: 0; }

/* ── Filter buttons ──────────────────────────────────────── */
.filter-btn {
  background: transparent; border: 1.5px solid var(--light-border);
  color: var(--muted); font-size: 12px; font-weight: 500;
  padding: 6px 16px; border-radius: 20px; cursor: pointer;
  transition: all var(--t) var(--ease); font-family: 'DM Sans', sans-serif;
  margin: 3px;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--navy); color: var(--amber); border-color: var(--navy);
}

/* ── Quote block ─────────────────────────────────────────── */
.quote-block {
  border-left: 3px solid var(--amber);
  padding: 1.2rem 1.6rem;
  background: var(--amber-pale);
  border-radius: 0 var(--r) var(--r) 0;
  font-style: italic; color: var(--navy-mid); font-size: 1.05rem; line-height: 1.7;
}

/* ── Book card ───────────────────────────────────────────── */
.book-card {
  background: var(--white); border: 1px solid var(--light-border);
  border-radius: var(--r-lg); overflow: hidden;
  transition: all var(--t) var(--ease);
}
.book-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--amber-border); }
.book-cover {
  height: 200px; display: flex; align-items: center;
  justify-content: center; font-size: 3rem;
  font-family: 'Playfair Display', serif; font-weight: 900;
  color: var(--amber); position: relative; overflow: hidden;
}

/* ── Course card ─────────────────────────────────────────── */
.course-card {
  background: var(--white); border: 1px solid var(--light-border);
  border-radius: var(--r-lg); overflow: hidden;
  transition: all var(--t) var(--ease); height: 100%;
}
.course-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--amber-border); }
.course-header {
  padding: 1.5rem; color: #fff;
  min-height: 130px; display: flex; flex-direction: column; justify-content: flex-end;
}
.course-body { padding: 1.4rem 1.5rem; }
.course-meta {
  display: flex; gap: 14px; flex-wrap: wrap; margin-top: 0.8rem;
}
.course-meta span {
  font-family: 'IBM Plex Mono', monospace; font-size: 10.5px; color: var(--muted);
  display: flex; align-items: center; gap: 4px;
}

/* ── Event / talk card ───────────────────────────────────── */
.talk-card {
  background: var(--white); border: 1px solid var(--light-border);
  border-radius: var(--r-lg); padding: 1.5rem;
  display: flex; gap: 1.2rem;
  transition: all var(--t) var(--ease);
}
.talk-card:hover { border-color: var(--amber-border); box-shadow: var(--shadow-sm); }
.talk-icon-wrap {
  width: 48px; height: 48px; border-radius: var(--r);
  background: var(--navy); display: flex; align-items: center;
  justify-content: center; font-size: 20px; flex-shrink: 0; color: var(--amber);
}
.talk-type {
  font-family: 'IBM Plex Mono', monospace; font-size: 10px;
  color: var(--amber); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 4px;
}

/* ── Form ────────────────────────────────────────────────── */
.form-control-bis {
  width: 100%; background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15); border-radius: 8px;
  padding: 11px 14px; color: #fff; font-size: 0.92rem;
  font-family: 'DM Sans', sans-serif; outline: none;
  transition: border-color var(--t) var(--ease);
}
.form-control-bis::placeholder { color: rgba(255,255,255,0.3); }
.form-control-bis:focus { border-color: var(--amber); }
.form-control-bis option { background: var(--navy); }

/* ── Footer ──────────────────────────────────────────────── */
footer {
  background: var(--navy);
  color: rgba(255,255,255,0.55);
  padding: 64px 0 28px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-heading {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.78rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 1.4px;
  color: rgba(255,255,255,0.85); margin-bottom: 1rem;
}
footer a { color: rgba(255,255,255,0.48); font-size: 0.88rem; display: block; margin-bottom: 6px; }
footer a:hover { color: var(--amber); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-top: 1.4rem; margin-top: 2.5rem;
  font-size: 0.8rem; color: rgba(255,255,255,0.28);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px;
}

/* ── Animations ──────────────────────────────────────────── */
.fade-up { opacity: 0; transform: translateY(28px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.in { opacity: 1; transform: translateY(0); }
.fade-up.delay-1 { transition-delay: 0.1s; }
.fade-up.delay-2 { transition-delay: 0.2s; }
.fade-up.delay-3 { transition-delay: 0.3s; }
.fade-up.delay-4 { transition-delay: 0.4s; }

/* ── Misc ────────────────────────────────────────────────── */
.divider-amber { height: 1px; background: linear-gradient(90deg, transparent, var(--amber), transparent); margin: 0; border: none; }
.highlight-strip { background: var(--amber-pale); border-left: 3px solid var(--amber); border-radius: 0 var(--r) var(--r) 0; padding: 12px 16px; font-size: 0.9rem; color: var(--navy); }

@media (max-width: 768px) {
  .page-hero { padding: 88px 0 52px; }
  .sec-white, .sec-off, .sec-navy, .sec-mid { padding: 60px 0; }
  .timeline-wrap { padding-left: 36px; }
}