/* ─── ALBERTOV ZEOLITE DAY 2026 — Main Stylesheet ─── */

/* ─── TOKENS ─── */
:root {
  --navy:         #0b1628;
  --navy-deep:    #060e1c;
  --navy-mid:     #112040;
  --navy-panel:   #162544;
  --cyan:         #00c8d4;
  --cyan-bright:  #2de3ef;
  --cyan-dim:     #0a8fa0;
  --cyan-glow:    rgba(0, 200, 212, 0.18);
  --gold:         #c8a84b;
  --gold-light:   #e8cc7a;
  --white:        #ffffff;
  --offwhite:     #e8eef5;
  --grey-light:   #e4eaf2;
  --grey-panel:   #dde4ee;
  --text-dark:    #0b1628;
  --text-mid:     #2a3a5c;
  --text-muted:   #5a6a84;

  --font-display: 'Barlow Condensed', 'Impact', sans-serif;
  --font-body:    'Barlow', 'Helvetica Neue', sans-serif;

  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --radius-sm:   0.375rem;
  --radius-md:   0.625rem;
  --radius-lg:   1rem;
  --radius-xl:   1.5rem;
  --radius-full: 9999px;
}

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

html {
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--grey-light);
  color: var(--text-dark);
  line-height: 1.6;
}

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

/* ─── PAGE WRAPPER ─── */
.page {
  max-width: 860px;
  margin: 0 auto;
  background: var(--white);
  box-shadow: 0 8px 60px rgba(0, 0, 0, 0.18);
}

/* ─── HEADER BANNER ─── */
.header-banner {
  background: var(--navy-deep);
  background-image:
    radial-gradient(ellipse 60% 80% at 20% 50%, rgba(0, 150, 200, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 80% 30%, rgba(0, 200, 212, 0.08) 0%, transparent 60%);
  padding: var(--space-8) var(--space-10);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-6);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.header-logo-img {
  width: 130px;
  height: 130px;
  object-fit: contain;
  filter: drop-shadow(0 0 18px rgba(0, 200, 212, 0.6));
  flex-shrink: 0;
}

.header-text-group {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.header-eyebrow {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--offwhite);
  opacity: 0.85;
  margin-bottom: var(--space-1);
}

.header-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--white);
  line-height: 0.95;
  margin-bottom: var(--space-3);
}

.header-year-date {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.header-year {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  color: var(--cyan);
  line-height: 1;
  letter-spacing: 0.02em;
}

.header-date-divider {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.25);
}

.header-date {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-weight: 600;
  color: var(--offwhite);
  letter-spacing: 0.06em;
}

/* ─── MOLECULAR STRIP ─── */
.mol-strip,
.bottom-mol-strip {
  overflow: hidden;
  background: var(--navy);
  display: flex;
  align-items: center;
}

.mol-strip {
  height: 60px;
}

.bottom-mol-strip {
  height: 64px;
}

.mol-strip img,
.bottom-mol-strip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* ─── SECTION GENERIC ─── */
.section {
  padding: var(--space-10) var(--space-10);
}

.section-light {
  background: var(--grey-panel);
}

.section-white {
  background: var(--white);
}

/* ─── SECTION HEADING ─── */
.section-heading {
  text-align: center;
  margin-bottom: var(--space-8);
}

.section-heading-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dark);
}

.section-heading-rule {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

.section-heading-rule::before,
.section-heading-rule::after {
  content: '';
  display: block;
  height: 1px;
  width: 80px;
  background: var(--cyan);
  opacity: 0.6;
}

.rule-diamond {
  width: 10px;
  height: 10px;
  border: 1.5px solid var(--cyan);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.rule-diamond.gold {
  border-color: var(--gold);
}

/* ─── VENUE INFO BAR ─── */
.venue-bar {
  background: var(--navy-mid);
  padding: var(--space-4) var(--space-10);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  border-top: 1px solid rgba(0, 200, 212, 0.15);
  border-bottom: 1px solid rgba(0, 200, 212, 0.15);
}

.venue-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--offwhite);
  font-size: 0.9rem;
}

.venue-item svg {
  color: var(--cyan);
  flex-shrink: 0;
  opacity: 0.85;
}

.venue-item strong {
  color: var(--cyan-bright);
  font-weight: 700;
}

.venue-divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, 0.15);
}

/* ─── SPEAKERS GRID ─── */
.speakers-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid rgba(0, 0, 0, 0.07);
}

.speaker-col {
  padding: var(--space-8) var(--space-8);
  text-align: center;
  border-right: 1px solid rgba(0, 0, 0, 0.07);
  background: var(--grey-panel);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.speaker-col:last-child {
  border-right: none;
}

.speaker-avatar {
  width: 150px;
  height: 150px;
  border-radius: var(--radius-full);
  border: 4px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 200, 212, 0.15), 0 8px 32px rgba(0, 0, 0, 0.15);
  overflow: hidden;
  margin-bottom: var(--space-6);
  background: var(--cyan-dim);
  display: flex;
  align-items: center;
  justify-content: center;
}

.speaker-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.speaker-name {
  font-family: var(--font-body);
  font-size: clamp(1.2rem, 2.5vw, 1.55rem);
  font-weight: 700;
  color: var(--navy-deep);
  margin-bottom: var(--space-2);
  line-height: 1.2;
}

.speaker-affiliation {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: var(--space-4);
}

.speaker-talk {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-style: italic;
  font-weight: 600;
  color: var(--cyan-dim);
  line-height: 1.5;
  margin-bottom: var(--space-5);
}

.speaker-flag {
  width: 52px;
  height: 38px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  line-height: 1;
  margin-top: auto;
}

.speaker-flag img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ─── PROGRAMME TABLE ─── */
.programme-table {
  width: 100%;
  border-collapse: collapse;
}

.programme-table tr {
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: background 0.15s;
}

.programme-table tr:last-child {
  border-bottom: none;
}

.programme-table tr:hover {
  background: rgba(0, 200, 212, 0.04);
}

.programme-table td {
  padding: var(--space-4) var(--space-6);
  vertical-align: top;
}

.prog-time {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--cyan-dim);
  white-space: nowrap;
  width: 110px;
  padding-top: var(--space-4);
  letter-spacing: 0.04em;
}

.prog-dot-col {
  width: 28px;
  padding-top: var(--space-4);
  text-align: center;
}

.prog-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--cyan);
  display: inline-block;
  margin-top: 6px;
  box-shadow: 0 0 8px rgba(0, 200, 212, 0.5);
}

.prog-dot.break {
  background: rgba(0, 0, 0, 0.2);
  box-shadow: none;
}

.prog-dot.special {
  background: var(--gold);
  box-shadow: 0 0 8px rgba(200, 168, 75, 0.5);
}

.prog-line {
  position: relative;
}

.prog-line::before {
  content: '';
  position: absolute;
  left: -17px;
  top: 16px;
  bottom: -16px;
  width: 1px;
  background: rgba(0, 200, 212, 0.2);
}

tr:last-child .prog-line::before {
  display: none;
}

.prog-type {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.prog-event {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy-deep);
  line-height: 1.3;
  margin-bottom: var(--space-1);
}

.prog-talk {
  font-size: 0.88rem;
  font-style: italic;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: var(--space-2);
}

.prog-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  background: var(--cyan-glow);
  border: 1px solid rgba(0, 200, 212, 0.25);
  color: var(--cyan-dim);
  border-radius: var(--radius-full);
  padding: 2px 10px;
}

.prog-tag.gold-tag {
  background: rgba(200, 168, 75, 0.1);
  border-color: rgba(200, 168, 75, 0.3);
  color: #9a7a1a;
}

.row-break td {
  opacity: 0.65;
}

.row-break .prog-event {
  color: var(--text-mid);
  font-weight: 500;
  font-size: 0.95rem;
}

.row-special .prog-time {
  color: var(--gold);
}

.row-special .prog-event {
  color: var(--navy-deep);
}

/* ─── FOOTER ─── */
.site-footer {
  background: var(--navy-deep);
  padding: 1.8rem 1.2rem 2rem;
}

.footer-shell {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.footer-ack {
  padding: 1.1rem 0 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-ack-text {
  margin: 0 0 1rem;
  text-align: center;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.55;
  color: #ffffff;
}

.footer-ack-logos {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.footer-ack-logos img {
  display: block;
  height: auto;
  max-width: 100%;
  object-fit: contain;
}

.footer-logo-techscale {
  width: 220px;
  max-width: 42%;
  filter: brightness(0) invert(1);
  opacity: 0.96;
}

.footer-logo-original {
  filter: none !important;
  opacity: 1;
  background: #ffffff;
  padding: 0.45rem 0.7rem;
  border-radius: 0.5rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
}

.footer-logo-eu {
  width: 520px;
  max-width: 72%;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  text-align: center;
}

.footer-tower {
  flex-shrink: 0;
  opacity: 0.85;
}

.footer-text {
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
}

.footer-text strong {
  color: rgba(255, 255, 255, 0.96);
}

.footer-dot {
  margin: 0 2px;
  color: var(--cyan);
}

/* ─── PRINT ─── */
@media print {
  body {
    background: white;
  }

  .page {
    box-shadow: none;
    max-width: 100%;
  }

  .mol-strip,
  .bottom-mol-strip,
  .header-banner,
  .venue-bar,
  .site-footer {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
}

/* ─── RESPONSIVE ─── */
@media (max-width: 640px) {
  .header-banner {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
    padding: var(--space-8) var(--space-5);
  }

  .header-year-date {
    justify-content: center;
  }

  .section {
    padding: var(--space-8) var(--space-5);
  }

  .venue-bar {
    padding: var(--space-4) var(--space-5);
    gap: var(--space-3);
  }

  .venue-divider {
    display: none;
  }

  .speakers-grid {
    grid-template-columns: 1fr;
  }

  .speaker-col {
    border-right: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.07);
  }

  .speaker-col:last-child {
    border-bottom: none;
  }

  .programme-table td {
    padding: var(--space-3) var(--space-3);
  }

  .prog-time {
    width: 80px;
    font-size: 0.92rem;
  }

  .site-footer {
    padding: 1.5rem 1rem 1.75rem;
  }

  .footer-shell {
    gap: 1.1rem;
  }

  .footer-ack {
    padding: 1rem 0 1.1rem;
  }

  .footer-ack-text {
    font-size: 0.9rem;
    line-height: 1.5;
    max-width: 32ch;
    margin-left: auto;
    margin-right: auto;
  }

  .footer-ack-logos {
    flex-wrap: wrap;
    gap: 0.85rem;
  }

  .footer-logo-techscale {
    width: 180px;
    max-width: 80%;
  }

  .footer-logo-eu {
    width: 300px;
    max-width: 92%;
  }

  .footer-logo-original {
    padding: 0.35rem 0.55rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.75rem;
  }

  .footer-text {
    font-size: 0.82rem;
  }
}