/* =========================================================
   IU Academic Calendar Page
========================================================= */

.iu-calendar-page {
  color: #0b265f;
  background: #fff;
}

.iu-calendar-page svg {
  display: block;
  width: 1em;
  height: 1em;
  fill: currentColor;
}

/* Hero */

.iu-calendar-hero {
  position: relative;
  overflow: hidden;
  min-height: 350px;
  background: #082b6f;
}

.iu-calendar-hero-media {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center right;
}

.iu-calendar-hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      112deg,
      rgba(2, 38, 104, 1) 0%,
      rgba(3, 53, 139, 0.98) 36%,
      rgba(4, 71, 164, 0.62) 54%,
      rgba(255, 255, 255, 0) 54.2%
    ),
    linear-gradient(
      90deg,
      rgba(3, 38, 104, 0.92) 0%,
      rgba(3, 38, 104, 0.46) 48%,
      rgba(3, 38, 104, 0.06) 100%
    );
}

.iu-calendar-hero::after {
  content: "";
  position: absolute;
  left: 55px;
  bottom: 32px;
  width: 120px;
  height: 84px;
  background-image: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.18) 1.5px,
    transparent 1.5px
  );
  background-size: 14px 14px;
  opacity: 0.7;
}

.iu-calendar-hero .container {
  position: relative;
  z-index: 2;
}

.iu-calendar-hero-inner {
  display: flex;
  align-items: center;
  min-height: 350px;
  padding: 42px 0;
}

.iu-calendar-hero-copy {
  max-width: 720px;
  color: #fff;
}

.iu-calendar-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
  font-weight: 700;
}

.iu-calendar-breadcrumb a {
  color: rgba(255, 255, 255, 0.78);
}

.iu-calendar-breadcrumb strong {
  color: #fff;
}

.iu-calendar-hero h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(3.1rem, 5.2vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.055em;
  font-weight: 900;
  text-transform: uppercase;
}

.iu-calendar-hero p {
  max-width: 650px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.03rem;
  line-height: 1.75;
}

.iu-calendar-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.iu-calendar-hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 0 13px;
  color: rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.11);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 800;
}

/* Main */

.iu-calendar-content {
  padding: 36px 0 78px;
}

.iu-calendar-main {
  width: min(100%, 1180px);
  margin: 0 auto;
  display: grid;
  gap: 38px;
}

.iu-calendar-section {
  background: #fff;
}

.iu-calendar-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
}

.iu-calendar-section-title span,
.iu-calendar-section-title h2 {
  color: #063c9c;
  font-size: 1.35rem;
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.025em;
  text-transform: uppercase;
}

.iu-calendar-section-title::after {
  content: "";
  display: block;
  width: 30px;
  height: 2px;
  margin-left: -30px;
  transform: translateY(24px);
  background: #e2272e;
  border-radius: 999px;
}

.iu-calendar-section-intro {
  max-width: 900px;
  margin: 0 0 20px;
  color: #263b63;
  line-height: 1.65;
}

/* Guide */

.iu-calendar-guide-layout {
  display: grid;
  grid-template-columns: 1fr 390px 350px;
  gap: 28px;
  align-items: start;
}

.iu-calendar-guide-text p {
  margin: 0 0 14px;
  color: #263b63;
  line-height: 1.75;
}

.iu-calendar-image-link,
.iu-calendar-zoom-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 14px;
  color: #063c9c;
  background: #f4f8ff;
  border: 1px solid #dbe6f4;
  border-radius: 10px;
  font-weight: 900;
  cursor: pointer;
}

.iu-calendar-guide-image {
  text-align: center;
}

.iu-calendar-guide-image img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid #dbe6f4;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 8px 26px rgba(14, 45, 103, 0.06);
}

.iu-calendar-guide-image small {
  display: block;
  margin-top: 10px;
  color: #5d6f8f;
  font-size: 0.86rem;
}

.iu-calendar-structure-card {
  padding: 24px;
  background: #f8fbff;
  border: 1px solid #dbe6f4;
  border-radius: 12px;
}

.iu-calendar-structure-card h3 {
  margin: 0 0 18px;
  color: #063c9c;
  font-size: 1.05rem;
  font-weight: 900;
}

.iu-calendar-structure-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid #e2ebf7;
}

.iu-calendar-structure-item:last-child {
  border-bottom: 0;
}

.iu-calendar-structure-item > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  color: #063c9c;
  background: #eef5ff;
  border-radius: 50%;
  font-size: 1.25rem;
}

.iu-calendar-structure-item strong {
  display: block;
  color: #0b265f;
  font-weight: 900;
}

.iu-calendar-structure-item p {
  margin: 7px 0 0;
  color: #4f6385;
  line-height: 1.6;
}

/* Steps */

.iu-calendar-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.iu-calendar-steps article {
  position: relative;
  display: grid;
  grid-template-columns: 42px 1fr 44px;
  gap: 16px;
  min-height: 168px;
  padding: 22px;
  background: #fff;
  border: 1px solid #dbe6f4;
  border-radius: 12px;
  box-shadow: 0 8px 26px rgba(14, 45, 103, 0.04);
}

.iu-calendar-step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  color: #fff;
  background: #e2272e;
  border-radius: 50%;
  font-weight: 900;
}

.iu-calendar-steps h3 {
  margin: 0;
  color: #063c9c;
  font-size: 1rem;
  line-height: 1.35;
  font-weight: 900;
}

.iu-calendar-steps p {
  margin: 10px 0 0;
  color: #263b63;
  line-height: 1.65;
}

.iu-calendar-steps article > span {
  align-self: end;
  justify-self: end;
  color: #063c9c;
  font-size: 2rem;
}

/* Legend */

.iu-calendar-legend {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 0;
  overflow: hidden;
  border: 1px solid #dbe6f4;
  border-radius: 12px;
  background: #fff;
}

.iu-calendar-legend-item {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 10px;
  align-items: center;
  min-height: 72px;
  padding: 12px;
  border-right: 1px solid #e6edf7;
}

.iu-calendar-legend-item:last-child {
  border-right: 0;
}

.iu-calendar-legend-item strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  color: #111827;
  border-radius: 4px;
  font-weight: 900;
}

.iu-calendar-legend-item span {
  color: #1d3157;
  font-size: 0.86rem;
  line-height: 1.35;
  font-weight: 700;
}

.iu-calendar-legend-item .is-green {
  background: #b4f59c;
}
.iu-calendar-legend-item .is-orange {
  background: #ff9d1e;
}
.iu-calendar-legend-item .is-lime {
  background: #47f148;
}
.iu-calendar-legend-item .is-peach {
  background: #ffd5ae;
}
.iu-calendar-legend-item .is-darkgreen {
  background: #35a26b;
}
.iu-calendar-legend-item .is-deeporange {
  background: #ff6a00;
}
.iu-calendar-legend-item .is-yellow {
  background: #fff45f;
}
.iu-calendar-legend-item .is-blue {
  background: #9fcbff;
}
.iu-calendar-legend-item .is-amber {
  background: #ffb300;
}

/* Calendar viewer */

.iu-calendar-viewer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 22px;
  align-items: stretch;
}

.iu-calendar-image-panel {
  position: relative;
  padding: 18px;
  background: #fff;
  border: 1px solid #dbe6f4;
  border-radius: 12px;
  box-shadow: 0 8px 26px rgba(14, 45, 103, 0.04);
}

.iu-calendar-image-panel img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid #e5edf7;
  background: #fff;
}

.iu-calendar-zoom-button {
  position: absolute;
  right: 30px;
  top: 30px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
}

.iu-calendar-download-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 28px;
  background: #f8fbff;
  border: 1px solid #dbe6f4;
  border-radius: 12px;
}

.iu-calendar-download-card > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  color: #063c9c;
  background: #eef5ff;
  border-radius: 50%;
  font-size: 1.5rem;
}

.iu-calendar-download-card h3 {
  margin: 18px 0 10px;
  color: #063c9c;
  font-size: 1.1rem;
  font-weight: 900;
}

.iu-calendar-download-card p {
  margin: 0;
  color: #4f6385;
  line-height: 1.65;
}

.iu-calendar-download-card a,
.iu-calendar-download-card button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  margin-top: 16px;
  padding: 0 16px;
  color: #fff;
  background: #063c9c;
  border: 0;
  border-radius: 8px;
  font-weight: 900;
  cursor: pointer;
}

.iu-calendar-download-card button {
  color: #063c9c;
  background: #fff;
  border: 1px solid #dbe6f4;
}

/* Note */

.iu-calendar-note {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 20px 22px;
  background: #f5f9ff;
  border: 1px solid #dbe7f6;
  border-radius: 10px;
}

.iu-calendar-note > span {
  color: #063c9c;
  font-size: 1.5rem;
}

.iu-calendar-note ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: #1d3157;
  line-height: 1.65;
}

/* Lightbox */

.iu-calendar-lightbox {
  position: fixed;
  z-index: 99999;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
  background: rgba(3, 16, 42, 0.86);
}

.iu-calendar-lightbox[hidden] {
  display: none;
}

.iu-calendar-lightbox img {
  display: block;
  max-width: min(96vw, 1500px);
  max-height: 92vh;
  object-fit: contain;
  background: #fff;
  border-radius: 8px;
}

.iu-calendar-lightbox-close {
  position: fixed;
  top: 20px;
  right: 26px;
  width: 46px;
  height: 46px;
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
}

/* Responsive */

@media (max-width: 1180px) {
  .iu-calendar-guide-layout {
    grid-template-columns: 1fr;
  }

  .iu-calendar-guide-image {
    max-width: 680px;
  }

  .iu-calendar-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .iu-calendar-legend {
    grid-template-columns: repeat(3, 1fr);
  }

  .iu-calendar-viewer {
    grid-template-columns: 1fr;
  }

  .iu-calendar-download-card {
    display: block;
  }
}

@media (max-width: 900px) {
  .iu-calendar-hero,
  .iu-calendar-hero-inner {
    min-height: 320px;
  }

  .iu-calendar-hero-overlay {
    background: linear-gradient(
      90deg,
      rgba(2, 38, 104, 0.96),
      rgba(2, 38, 104, 0.72)
    );
  }

  .iu-calendar-hero h1 {
    font-size: 3rem;
  }

  .iu-calendar-steps {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .iu-calendar-hero h1 {
    font-size: 2.35rem;
  }

  .iu-calendar-hero p {
    font-size: 0.96rem;
  }

  .iu-calendar-hero-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .iu-calendar-legend {
    grid-template-columns: 1fr;
  }

  .iu-calendar-legend-item {
    border-right: 0;
    border-bottom: 1px solid #e6edf7;
  }

  .iu-calendar-steps article {
    grid-template-columns: 42px 1fr;
  }

  .iu-calendar-steps article > span {
    display: none;
  }

  .iu-calendar-note {
    grid-template-columns: 1fr;
  }
}