:root {
  --green: #65ba29;
  --dark: #1f374f;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body.light-mode {
  --bg: white;
  --text: #222;
  --nav-bg: white;
  --nav-text: var(--green);
  --logo-src: url('/images/logos/logo-green-ver.png');
  --back-events-color: var(--green);
  --hero-color: var(--green);
  --events-shadow: 0 4px 24px 0 rgba(33, 58, 43, 0.38);
}

body.dark-mode {
  --bg: #111e2b;
  --text: white;
  --nav-bg: #111e2b;
  --nav-text: white;
  --back-events-color: var(--dark);
  --logo-src: url('/images/logos/coders_white_cropped.png');
  --hero-color: #1f374f;
  --events-shadow: 0 4px 24px 0 rgba(10, 18, 32, 0.85); 
}

body.light-mode,
body.dark-mode {
  font-family: 'Segoe UI', sans-serif;
  background-color: var(--bg);
  color: var(--text);
}


#navbar {
  background-color: var(--nav-bg);
  color: var(--nav-text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 2rem;
  width: 100%; 
  position: fixed;
  top: 0; 
  left: 0; 
  z-index: 1000;
  border-radius: 0; 
  transition: all 0.3s ease;
}
.nav-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.nav-left a {
  color: var(--nav-text);
  text-decoration: none;
  font-weight: bold;
  font-size: 1.2rem;
}
#logo-small {
  content: var(--logo-src);
  height: 0;
  transition: 0.3s ease;
  margin-right: 1rem;
}
#navbar.shrink #logo-small {
  height: 32px;
}
.nav-right button {
  background: none;
  border: none;
  color: var(--nav-text);
  font-size: 1.5rem;
  cursor: pointer;
}


#hero {
  background-color: var(--hero-color);
  color: white;
  padding: 6rem 2rem 8rem;
  text-align: center;
}

.logo-container {
  margin-bottom: 3rem;
}

#main-logo {
  max-width: 60%;
  height: auto;
  transition: 0.3s ease;
}

.about {
  max-width: 800px;
  margin: 0 auto;
  text-align: left;
  font-size: 1.2rem;
  line-height: 1.8;
}

.about h2 {
  margin-top: 2.5rem;
  text-align: left;
  font-size: 1.8rem;
}

.about a {
  color: white;
  text-decoration: underline;
}

.sponsor-logos {
  display: flex;
  justify-content: center;
  gap: 2em;
  flex-wrap: wrap;
}

.sponsor-logos img {
  width: 250px;
  height: auto;
  border-radius: 5px;
}

.buttons {
  margin-top: 2rem;
  text-align: center;
}

.icon-btn {
  color: white;
  font-size: 2rem;
  margin: 0 1rem;
  transition: color 0.2s ease;
}

.icon-btn:hover {
  color: #e6ffe6;
}

.calendar-section {
  background: var(--nav-bg);
  background-image: url('/images/branding/watermarklighter.png'); 
  background-repeat: repeat;
  background-size: 4000px auto;
  background-position: center center;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 3rem 0 3rem 0;
  min-height: unset;
  height: auto;
  transition: background-image 0.2s;
}
body.light-mode .calendar-section {
  background: var(--nav-bg);
  background-image: url('/images/branding/watermarklighter.png');
  background-position: center center;
  background-size: 4000px auto;
}
body.dark-mode .calendar-section {
  background: var(--nav-bg);
  background-image: url('/images/branding/watermarkdarker.png');
  background-position: center center;
  background-size: 4000px auto;
}
@media (max-width: 900px) {
  .calendar-section {
    padding: 1.5rem 0;
    background-size: 3000px auto;
  }
  body.light-mode .calendar-section,
  body.dark-mode .calendar-section {
    background-size: 3000px auto;
  }
}
@media (max-width: 600px) {
  .calendar-section {
    padding: 0.5rem 0;
    background-size: 2000px auto;
  }
  body.light-mode .calendar-section,
  body.dark-mode .calendar-section {
    background-size: 2000px auto;
  }
}
@media (max-width: 900px) {
  .events-column {
    max-width: 98vw;
    padding: 1.5rem 0.5rem;
  }
  .calendar-section {
    padding: 1.5rem 0;
  }
}
@media (max-width: 600px) {
  .events-column {
    background: none !important;
    box-shadow: none !important;
    border: none !important;
    max-width: 100vw;
    padding: 1rem 0.2rem;
    border-radius: 0;
    
  }
  .calendar-section {
    padding: 0.5rem 0;
  }
  body.light-mode .events-column h2 {
    color: var(--green) !important;
  }
}


.dark-section {
  background: var(--hero-color);
  height: 600px;
}


footer {
  background: var(--nav-bg);
  font-family: 'Segoe UI', sans-serif;
  color: var(--nav-text);
  text-align: center;
  padding: 2rem 1rem;
  font-size: 1rem;
}

footer a {
  color: inherit;
  text-decoration: underline;
}

.events-column {
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  background: var(--back-events-color);
  color: var(--text);
  border-radius: 12px;
  box-shadow: var(--events-shadow);
  padding: 2.5rem 2rem 2rem;
  box-sizing: border-box;
}
.events-column h2 {
  text-align: left;
  margin-bottom: 1.5rem;
  color: var(--green);
  font-size: 1.8rem;
}
body.light-mode .events-column h2 {
  color: White;
}
body.dark-mode .events-column h2 {
  color: var(--green);
}
#events-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.event-card {
  background: var(--nav-bg);
  color: var(--nav-text);
  border-radius: 8px;
  padding: 1rem 1.2rem;
  box-shadow: 0 1px 6px rgba(0,0,0,0.05);
  transition: background 0.3s, color 0.3s;
  
  border: 2px solid var(--green);
}
.event-title {
  font-weight: bold;
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}
.event-date {
  font-size: 0.98rem;
  color: var(--green);
  margin-bottom: 0.2rem;
}
.event-location {
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}
.event-desc {
  font-size: 0.93rem;
  margin-bottom: 0.2rem;
}
.event-link {
  color: var(--green);
  text-decoration: underline;
  font-size: 0.95rem;
}


@media (max-width: 600px) {
  .events-heading-card {
    display: block;
    width: fill;
    margin: 0 auto 1.2rem auto;
    background: var(--nav-bg);
    color: var(--nav-text);
    border-radius: 8px;
    box-shadow: 0 1px 6px rgba(0,0,0,0.09);
    padding: 0.5rem 1rem;
    
    border: 2px solid var(--green);
  }
  .events-column h2 {
    text-align: center;
    color: var(--green) !important;
    margin-bottom: 0;
  }
  .sponsor-logos {
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 1em;
    flex-wrap: nowrap;
  }
  .sponsor-logos img {
    width: 40vw;
    max-width: 120px;
    min-width: 60px;
    height: auto;
    display: block;
  }
}

#more-events-btn {
  display: block;
  margin: 2rem auto 0 auto;
  padding: 0.8rem 2.2rem;
  background: var(--green);
  color: white;
  font-size: 1.1rem;
  font-weight: bold;
  border: none;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  text-align: center;
  text-decoration: none;
}
body.light-mode #more-events-btn {
  background: white;
  color: var(--green);
  border: 2px solid var(--green);
}
body.light-mode #more-events-btn:hover, body.light-mode #more-events-btn:focus {
  background: #f3f3f3;
  color: #388a13;
  border-color: #388a13;
}
body.dark-mode #more-events-btn {
  background: var(--nav-bg);
  color: var(--green);
  border: 2px solid var(--green);
}
body.dark-mode #more-events-btn:hover, body.dark-mode #more-events-btn:focus {
  background: #18273a;
  color: #a6ff7a;
  border-color: #a6ff7a;
}

/* preload for light/dark mode */
body:after {
  content: '';
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
  background: url('/images/branding/watermarklighter.png') no-repeat -9999px -9999px, url('/images/branding/watermarkdarker.png') no-repeat -9999px -9999px;
}

/* doodle rules */
@media (min-width: 1100px) {
  .about-doodle {
    position: absolute;
    z-index: 1;
    pointer-events: none;
    opacity: 0.7; 
    width: 80px;
    height: auto;
  }
  
  /* Left Top to Bottom (full opacity) */
  .about-doodle.doodle-1 { top: 15px; left: 5vw; opacity: 1;  transform: rotate(-12deg); } /* Top Left Circutboard */
  .about-doodle.doodle-21 { top: 150px; left: 3vw; opacity: 1; transform: rotate(12deg); } /* Top Left Ninja */
  .about-doodle.doodle-19 { top: 300px; left: 2vw; opacity: 1; transform: rotate(-8deg); } /* Center Left Python */
  .about-doodle.doodle-6 { top: 450px; left: 0vw; opacity: 1; transform: rotate(-6deg); } /* Center Left Raspberry Pi */
  .about-doodle.doodle-3 { bottom: 125px; left: 2vw; opacity: 1;  transform: rotate(18deg); } /* Bottom Left Barracuda */
  .about-doodle.doodle-22 { bottom: 0px; left: 5vw; opacity: 1; transform: rotate(16deg); } /* Bottom Left Github */

  /* Right Top to Bottom (full opacity) */
  .about-doodle.doodle-23 { top: 0px; right: 5vw; opacity: 1; transform: rotate(-12deg); } /* Top Right Pi */
  .about-doodle.doodle-2 { top: 150px; right: 3vw; opacity: 1;  transform: rotate(8deg); } /* Top Right Barracuda */
  .about-doodle.doodle-20 { top: 325px; right: 2vw; opacity: 1; transform: rotate(8deg); } /* Center Right Python */
  .about-doodle.doodle-4 { top: 450px; right: 0vw; opacity: 1;  transform: rotate(-22deg); } /* Center Right Github */
  .about-doodle.doodle-5 { bottom: 150px; right: 2vw; opacity: 1;  transform: rotate(14deg); } /* Bottom Right Circut Board */
  .about-doodle.doodle-24 { bottom: 0px; right: 5vw; opacity: 1; transform: rotate(-16deg); } /* Bottom Right Ninja */

  /* Left Top to Bottom (decreasing opacity) */
  .about-doodle.doodle-18 { top: 50px; left: 13vw; opacity: 0.5; transform: rotate(-19deg); } /* Top Left Python */
  .about-doodle.doodle-13 { top: 150px; left: 11vw; opacity: 0.5; transform: rotate(10deg); } /* Top left Barracuda */
  .about-doodle.doodle-7 { top: 250px; left: 10vw; opacity: 0.5; transform: rotate(24deg); } /*  Center Left Circut Board */
  .about-doodle.doodle-12 { top: 375px; left: 9vw; opacity: 0.5; transform: rotate(-16deg); } /* Center Left Github*/
  .about-doodle.doodle-9 { bottom: 200px; left: 9vw; opacity: 0.5; transform: rotate(-32deg); } /* Bottom Left Ninja */
  .about-doodle.doodle-15 { bottom: 50px; left:12vw; opacity: 0.5; transform: rotate(22deg); } /* Bottom Left Rasp Pi Logo*/

  /* Right Top to Bottom (decreasing opacity) */ 
  .about-doodle.doodle-8 { top: 50px; right: 13vw; opacity: 0.5; transform: rotate(-18deg); } /* Top Right Github */
  .about-doodle.doodle-16 { top: 150px; right: 11vw; opacity: 0.5; transform: rotate(-30deg); } /* Top Right Python */
  .about-doodle.doodle-10 { top: 250px; right: 10vw; opacity: 0.5; transform: rotate(-28deg); } /* Center Right Ninja*/
  .about-doodle.doodle-14 { top: 375px; right: 9vw; opacity: 0.5; transform: rotate(-15deg); } /* Center Right Circut Board */
  .about-doodle.doodle-11 { bottom: 200px; right: 9vw; opacity: 0.5; transform: rotate(12deg); } /* Bottom Right Pi */
  .about-doodle.doodle-17 { bottom: 50px; right: 12vw; opacity: 0.5; transform: rotate(7deg); } /* Bottom Right Barracuda */

  

  
  .about-section-wrapper {
    position: relative;
    width: 100%;
    min-height: 700px;
  }
}
@media (max-width: 1099px) {
  .about-section-wrapper {
    display: none !important;
  }
  .about-mobile {
    display: block !important;
  }
}
@media (min-width: 1100px) {
  .about-mobile {
    display: none !important;
  }
}