/* ============================================================
 * LANDING.CSS — Premium Custom Design System for KSM Education
 * ============================================================
 */

:root {
  --primary-navy: #2c3e50;       /* Dashboard Midnight/Slate Navy */
  --primary-hover: #1e2d3d;
  --accent-cyan: #3b5c92;        /* Dashboard Accent Blue */
  --accent-orange: #f97316;      /* Deep CTA Orange */
  --accent-orange-hover: #ea580c;
  --bg-pristine: #ffffff;        /* Pristine White */
  --bg-slate: #f8fafc;           /* Light Slate Gray */
  --border-color: #e2e8f0;
  --text-dark: #1e293b;
  --text-muted: #64748b;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base resets */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
a,
span,
input,
button,
select,
textarea,
li {
  font-family: 'Montserrat', sans-serif !important;
}

body {
  background-color: var(--bg-pristine);
  color: var(--text-dark);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* Glassmorphism Navigation Bar Overlay */
.landing-header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: transparent !important;
  box-shadow: none !important;
  border: none !important;
  transition: var(--transition-smooth);
}

.landing-header.scrolled {
  position: fixed;
  background: rgba(15, 23, 42, 0.92) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3) !important;
}

.landing-nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.landing-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.landing-logo img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: var(--transition-smooth);
}

.landing-logo img:hover {
  transform: scale(1.03);
}

.landing-nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.landing-mobile-nav-footer {
  display: none;
}

.landing-nav-links a {
  text-decoration: none;
  color: #ffffff;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3px;
  position: relative;
  padding: 6px 0;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  transition: color 0.2s ease;
}

.landing-nav-links a:not(.btn-register):not(.btn-signin)::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #ffffff;
  transition: var(--transition-smooth);
}

.landing-nav-links a:hover {
  color: #ecf0f1;
}

.landing-nav-links a:not(.btn-register):not(.btn-signin):hover::after {
  width: 100%;
}

.landing-nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Language Switcher */
.lang-switcher {
  position: relative;
  display: inline-block;
}

.lang-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: var(--transition-smooth);
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #ffffff;
}

.lang-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  left: auto;
  background: #1e293b;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  box-shadow: var(--shadow-xl);
  min-width: 140px;
  white-space: nowrap;
  display: none;
  z-index: 1010;
  margin-top: 6px;
  overflow: hidden;
}

.lang-dropdown.show {
  display: block;
}

#langDropdownFooter {
  left: 0 !important;
  right: auto !important;
}

.lang-item {
  display: block;
  width: 100%;
  padding: 10px 16px;
  border: none;
  background: transparent;
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.lang-item:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ecf0f1;
}

.landing-nav-auth {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-signin {
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  color: #ffffff;
  padding: 10px 20px;
  border-radius: 8px;
  transition: var(--transition-smooth);
}

.btn-signin:hover {
  background-color: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

.btn-register {
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  background: #2563eb;
  color: white;
  padding: 10px 24px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
  transition: var(--transition-smooth);
  border: 1px solid #2563eb;
}

.btn-register::after,
.btn-signin::after {
  display: none !important;
}

.btn-register:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.45);
}

/* User logged-in state inside navbar */
.landing-nav-user {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.15);
  padding: 6px 14px;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(8px);
  transition: var(--transition-smooth);
}

.landing-nav-user:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.25);
}

.landing-nav-user .avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #2c3e50;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 12px;
}

.landing-nav-user .name {
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
}

/* Hero Section */
.landing-hero {
  position: relative;
  min-height: 720px;
  padding: calc(80px + 3.5rem) 24px 60px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0f172a;
  text-align: center;
  color: white;
}

.landing-hero-slides,
.landing-hero-slide {
  position: absolute;
  inset: 0;
}

.landing-hero-slide {
  background-position: center;
  background-size: cover;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
}

.landing-hero-slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(15, 23, 42, 0.55), rgba(15, 23, 42, 0.75));
}

.landing-hero-slide.active {
  opacity: 1;
}

.landing-hero-control {
  position: absolute;
  top: 50%;
  z-index: 3;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.25);
  color: white;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  transform: translateY(-50%);
  transition: var(--transition-smooth);
}

.landing-hero-control:hover,
.landing-hero-control:focus-visible {
  background: rgba(255, 255, 255, 0.2);
  outline: none;
}

.landing-hero-prev { left: 24px; }
.landing-hero-next { right: 24px; }

.landing-hero-dots {
  position: absolute;
  bottom: 28px;
  left: 50%;
  z-index: 3;
  display: flex;
  gap: 10px;
  transform: translateX(-50%);
}

.landing-hero-dots button {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 1px solid white;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}

.landing-hero-dots button.active {
  background: white;
}

.hero-deco-1 {
  position: absolute;
  top: 15%;
  left: 5%;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(59, 92, 146, 0.08) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}

.hero-deco-2 {
  position: absolute;
  bottom: 10%;
  right: 5%;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.05) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}

.landing-hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
}

.landing-hero-content h1 {
  font-size: 44px;
  font-weight: 800;
  color: white;
  line-height: 1.25;
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.landing-hero-content h1 span {
  background: linear-gradient(135deg, #b9dcff 0%, white 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.landing-hero-content p,
.landing-hero-content p span {
  color: rgba(255, 255, 255, 0.86) !important;
}

/* Advanced Search Bar with Filter Dropdown */
.landing-search-container {
  margin: 40px auto 32px;
  max-width: 740px;
  position: relative;
}

.landing-search-box {
  display: flex;
  align-items: center;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 99px;
  padding: 6px;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-smooth);
}

.landing-search-box:focus-within {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 4px rgba(59, 92, 146, 0.15), var(--shadow-xl);
}

/* Custom Search Filter Dropdown styling */
.search-filter-custom {
  position: relative;
  border-right: 1px solid var(--border-color);
  padding-right: 12px;
  margin-right: 12px;
  display: flex;
  align-items: center;
}

.filter-trigger {
  background: transparent;
  border: none;
  outline: none;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-navy);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 99px;
  transition: var(--transition-smooth);
  font-family: 'Montserrat', sans-serif;
}

.filter-trigger:hover {
  background: var(--bg-slate);
}

.filter-trigger svg.caret-icon {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  transition: transform var(--transition-smooth);
}

/* Custom Dropdown List */
.filter-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: 6px;
  list-style: none;
  margin: 0;
  width: 130px;
  display: none;
  flex-direction: column;
  z-index: 100;
  transform: translateY(10px);
  opacity: 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
  pointer-events: none;
}

.filter-dropdown-menu.show {
  display: flex;
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.filter-dropdown-menu li {
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dark);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.filter-dropdown-menu li:hover {
  background: var(--bg-slate);
  color: var(--accent-cyan);
}

.filter-dropdown-menu li.active {
  background: rgba(59, 92, 146, 0.1);
  color: var(--accent-cyan);
}

.landing-search-box svg.search-icon {
  color: var(--text-muted);
  width: 20px;
  height: 20px;
  margin-right: 8px;
  flex-shrink: 0;
}

.landing-search-box input {
  border: none;
  outline: none;
  font-size: 16px;
  color: var(--text-dark);
  background: transparent;
  width: 100%;
  font-weight: 500;
  font-family: 'Montserrat', sans-serif;
}

.landing-search-box input::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
  font-weight: 400;
}

.btn-search-submit {
  background-color: #2c3e50;
  border: none;
  color: white;
  font-weight: 600;
  font-size: 14px;
  padding: 12px 28px;
  border-radius: 99px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-search-submit:hover {
  background-color: #34495e;
  transform: scale(1.02);
}

.btn-search-submit:active {
  background-color: #1a252f;
}

/* CTA buttons inside hero */
.landing-hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.96);
  border: 2px solid rgba(255, 255, 255, 0.96);
  color: #172235;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 30px;
  border-radius: 8px;
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.18);
  transition: var(--transition-smooth);
}

.btn-hero-primary:hover {
  background: #ffffff;
  color: #172235;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.22);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.10);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1.5px solid rgba(255, 255, 255, 0.62);
  color: white;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 28px;
  border-radius: 8px;
  transition: var(--transition-smooth);
}

.btn-hero-secondary:hover {
  background: #ffffff;
  color: #0f172a;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.25);
}

/* Hide manual slideshow controls and cursor arrows for clean auto-play */
.landing-hero-control,
.landing-hero-dots {
  display: none !important;
}

@media (max-width: 720px) {
  .landing-hero {
    min-height: 680px;
    padding: 130px 20px 90px;
  }

  .landing-hero-control {
    width: 38px;
    height: 38px;
    font-size: 18px;
  }

  .landing-hero-prev { left: 12px; }
  .landing-hero-next { right: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .landing-hero-slide,
  .landing-hero-control,
  .landing-hero-dots button {
    transition: none;
  }
}

/* Floating Glassmorphism Statistics Bar */
.landing-stats-bar {
  display: none;
}

.landing-stats-container {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 16px;
  padding: 1.5rem 2rem;
  margin-top: 3.5rem;
  margin-bottom: 2rem;
  box-shadow: 0 8px 32px 0 rgba(255, 255, 255, 0.12);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 32px;
  position: relative;
  z-index: 2;
}

.landing-stat-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.landing-stat-icon-wrapper {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.18);
  border: 1.5px solid rgba(255, 255, 255, 0.58);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.landing-stat-icon-wrapper svg {
  color: #ffffff;
  width: 24px;
  height: 24px;
}

.landing-stat-info {
  display: flex;
  flex-direction: column;
}

.landing-stat-val {
  font-size: 22px;
  font-weight: 800;
  color: #ffffff;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.landing-stat-lbl {
  font-size: 12.5px;
  color: white;
  opacity: 0.62;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Split Content Area (The Core) */
.landing-split-section {
  max-width: 1280px;
  margin: 80px auto;
  padding: 0 24px;
}

.split-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr; /* 55% / 45% split */
  gap: 40px;
  align-items: start;
}

.split-left-column {
  border-right: 1px solid var(--border-color);
  padding-right: 40px;
}

.split-right-column {
  padding-left: 10px;
}

.column-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--primary-navy);
  padding-bottom: 12px;
}

.column-header h2 {
  font-size: 12px;
  font-weight: 800;
  color: var(--primary-navy);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.column-header h2 svg {
  width: 20px;
  height: 20px;
  color: var(--accent-cyan);
}

.btn-view-all {
  text-decoration: none;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition-smooth);
}

.btn-view-all:hover {
  color: var(--primary-navy);
}

/* 1. Academic Journal Cards (Left Column) - Text heavy, Formal */
.academic-card {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
  display: flex;
  gap: 16px;
  text-decoration: none;
  color: inherit;
}

.academic-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent-cyan);
}

.academic-icon-wrapper {
  background: var(--bg-slate);
  border: 1px solid var(--border-color);
  color: var(--primary-navy);
  width: 48px;
  height: 48px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition-smooth);
}

.academic-card:hover .academic-icon-wrapper {
  background: var(--primary-navy);
  color: white;
}

.academic-icon-wrapper svg {
  width: 24px;
  height: 24px;
}

.academic-thumbnail {
  width: 50px;
  height: 68px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border-color);
  background: var(--bg-slate);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.academic-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.academic-card:hover {
  border-color: var(--accent-cyan);
}

.academic-card:hover .academic-thumbnail img {
  transform: scale(1.05);
}

.academic-content {
  flex: 1;
}

.academic-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-navy);
  line-height: 1.4;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.academic-card:hover .academic-title {
  color: var(--accent-cyan);
}

.academic-authors {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 12px;
  font-weight: 500;
}

.academic-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 12px;
  color: var(--text-muted);
}

.academic-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.academic-meta svg {
  width: 14px;
  height: 14px;
}

/* 2. Featured News & Articles (Right Column) - Image/Visual heavy, Engaging */
.news-card {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
  display: flex;
  gap: 16px;
  padding: 12px;
  text-decoration: none;
  color: inherit;
}

.news-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent-cyan);
}

.news-thumbnail {
  width: 110px;
  height: 110px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}

.news-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.news-card:hover .news-thumbnail img {
  transform: scale(1.05);
}

.news-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.news-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-navy);
  line-height: 1.4;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card:hover .news-title {
  color: var(--accent-cyan);
}

.news-summary {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
}

.news-readtime {
  background: var(--bg-slate);
  color: var(--primary-navy);
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
}

/* Submission CTA Section */
.landing-submission {
  margin: 60px 24px 100px;
}

.landing-submission-banner {
  max-width: 1100px;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--primary-navy) 0%, #1e293b 100%);
  border-radius: 24px;
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.submission-deco {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 80% 20%, rgba(59, 92, 146, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.landing-submission-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
}

.landing-submission-content h2 {
  font-size: 36px;
  font-weight: 800;
  color: white;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.landing-submission-content p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
  line-height: 1.6;
}

.btn-submission-upload {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  background-color: var(--bg-pristine);
  color: var(--accent-cyan);
  font-weight: 700;
  font-size: 16px;
  padding: 16px 36px;
  border-radius: 8px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
}

.btn-submission-upload:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Footer Section */
.landing-footer {
  background-color: var(--primary-navy);
  color: white;
  padding: 80px 24px 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.landing-footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-brand-col img {
  height: 42px;
  width: auto;
  align-self: flex-start;
}

.footer-brand-col p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  line-height: 1.6;
  max-width: 320px;
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-socials a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.footer-socials a:hover {
  background-color: var(--accent-cyan);
  transform: translateY(-2px);
}

.footer-socials svg {
  width: 16px;
  height: 16px;
}

.footer-links-col h4,
.footer-contact-col h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 24px;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-col a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.footer-links-col a:hover {
  color: var(--accent-cyan);
  padding-left: 4px;
}

.footer-contact-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.footer-contact-item svg {
  color: var(--accent-cyan);
  width: 16px;
  height: 16px;
}

.landing-footer-bottom {
  max-width: 1280px;
  margin: 32px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.landing-footer-bottom-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.landing-footer-bottom-links a {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.landing-footer-bottom-links a:hover {
  color: white;
}

/* Mobile responsive styling */
.landing-mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-dark);
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.landing-mobile-menu-btn svg {
  width: 28px;
  height: 28px;
}

/* Guidelines Section Styles */
.landing-guidelines-section {
  background-color: var(--bg-slate);
  border-radius: 20px;
  padding: 60px 40px;
  margin-top: 40px;
  margin-bottom: 80px;
  border: 1px solid var(--border-color);
}

.guidelines-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.guidelines-card {
  background: white;
  padding: 24px;
  border-radius: 16px;
  border: 1.5px solid rgba(44, 62, 80, 0.15);
  box-shadow: 0 4px 12px rgba(44, 62, 80, 0.04);
  transition: var(--transition-smooth);
}

.guidelines-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(44, 62, 80, 0.08);
  border-color: var(--accent-cyan);
}

.guidelines-icon-wrapper {
  background: rgba(59, 92, 146, 0.1);
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--accent-cyan);
}

.guidelines-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-navy);
  margin-bottom: 8px;
}

.guidelines-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 1024px) {
  .split-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .split-left-column {
    border-right: none;
    padding-right: 0;
  }
  .landing-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .footer-brand-col {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .landing-nav-links {
    position: fixed;
    top: 0;
    right: 0;
    left: auto;
    width: min(84vw, 340px);
    height: 100dvh;
    padding: 104px 28px 28px;
    background: #172235;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow-y: auto;
    transform: translateX(100%);
    visibility: hidden;
    opacity: 0;
    transition: transform 0.3s ease, visibility 0.3s ease, opacity 0.3s ease;
    z-index: 1000;
    box-shadow: -12px 0 30px rgba(0, 0, 0, 0.28);
  }

  .landing-nav-links.active {
    transform: translateX(0);
    visibility: visible;
    opacity: 1;
  }

  .landing-nav-links > a {
    color: #ffffff;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
    padding: 18px 0;
    text-shadow: none;
  }

  .landing-nav-links > a::after {
    display: none;
  }

  .landing-mobile-nav-footer {
    display: flex;
    flex-direction: column;
    gap: 22px;
    padding-top: 28px;
  }

  .landing-mobile-nav-footer .lang-switcher,
  .landing-mobile-nav-footer .landing-nav-auth {
    width: 100%;
  }

  .landing-mobile-nav-footer .lang-btn,
  .landing-mobile-nav-footer .landing-nav-auth a {
    color: #ffffff;
  }

  .landing-mobile-nav-footer .lang-btn {
    width: 100%;
    justify-content: space-between;
  }

  .landing-mobile-nav-footer .lang-switcher {
    position: relative;
    width: 100%;
  }

  .landing-mobile-nav-footer .lang-dropdown {
    left: auto !important;
    right: 0 !important;
    width: auto !important;
    min-width: 150px !important;
    max-width: calc(100vw - 32px) !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  }

  .landing-mobile-nav-footer .landing-nav-auth {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .landing-mobile-nav-footer .landing-nav-auth a {
    text-align: center;
  }

  .landing-mobile-nav-footer .btn-register {
    background: #2563eb;
    border: none;
    color: #ffffff;
    box-shadow: none;
    border-radius: 8px;
    font-weight: 600;
  }

  .landing-mobile-menu-btn {
    display: block;
    position: relative;
    z-index: 1002;
    color: #ffffff;
  }

  .landing-nav-right {
    display: none;
  }

  body.menu-open {
    overflow: hidden;
  }

  .landing-hero {
    padding-top: 140px;
  }

  .landing-hero-content {
    width: 100%;
  }

  .landing-hero-content h1 {
    font-size: 30px;
    margin: 0 0 16px;
  }

  .landing-hero-content p {
    font-size: 15px;
  }

  /* ── Mobile Search Bar: Horizontal pill (Image 1 style) ── */
  .landing-search-container {
    width: 100%;
    margin: 28px auto 24px;
    padding: 0 4px;
  }

  .landing-search-box {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0;
    padding: 5px 5px 5px 6px;
    border-radius: 99px;
    background: #ffffff;
    border: 1px solid rgba(255,255,255,0.35);
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
  }

  /* Dropdown trigger: compact, left-aligned */
  .search-filter-custom {
    flex: 0 0 auto;
    border-right: 1px solid rgba(44, 62, 80, 0.15);
    border-bottom: none;
    margin: 0;
    padding: 0 10px 0 0;
    min-height: unset;
    width: auto;
    justify-content: flex-start;
  }

  .filter-trigger {
    padding: 7px 10px;
    font-size: 13px;
    white-space: nowrap;
  }

  /* Search icon: back to inline flow */
  .landing-search-box svg.search-icon {
    position: static;
    left: auto;
    top: auto;
    transform: none;
    margin: 0 6px 0 10px;
    flex-shrink: 0;
  }

  /* Input: fills remaining space */
  .landing-search-box input {
    flex: 1 1 0;
    min-width: 0;
    width: auto;
    height: auto;
    min-height: unset;
    margin: 0;
    padding: 8px 6px;
    font-size: 13px;
    line-height: normal;
    box-sizing: border-box;
  }

  /* Dropdown menu: anchored left on mobile */
  .filter-dropdown-menu {
    left: 0 !important;
    right: auto !important;
    transform: translateY(10px) !important;
  }

  .filter-dropdown-menu.show {
    transform: translateY(0) !important;
  }

  /* Submit button: compact pill, right side */
  .btn-search-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: auto;
    height: auto;
    min-height: unset;
    margin: 0;
    padding: 10px 18px;
    font-size: 13px;
    font-weight: 700;
    line-height: normal;
    border-radius: 99px;
    white-space: nowrap;
  }

  .landing-hero-ctas {
    flex-direction: column;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }

  .landing-hero-ctas a {
    width: 100%;
    justify-content: center;
  }

  /* ── Mobile Stats: Vertical stacked list (Image 3 style) ── */
  .landing-stats-container {
    width: 100%;
    max-width: 100%;
    margin-top: 28px;
    margin-left: 0;
    margin-right: 0;
    padding: 20px 18px;
    gap: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    border-radius: 18px;
  }

  .landing-stat-item {
    justify-content: flex-start;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.12);
  }

  .landing-stat-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .landing-stat-item:first-child {
    padding-top: 0;
  }

  .landing-stat-icon-wrapper {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
  }

  .landing-stat-val {
    font-size: 20px;
  }

  .landing-stat-lbl {
    font-size: 11px;
  }

  .landing-footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-brand-col {
    grid-column: span 1;
  }

  .landing-submission-banner {
    padding: 40px 24px;
  }

  .landing-submission-content h2 {
    font-size: 28px;
  }

  /* Mobile Guidelines Swipeable Horizontal Layout */
  .landing-guidelines-section {
    padding: 40px 20px;
  }

  .guidelines-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 20px;
    padding: 10px 4px;
    margin: 0 -4px;
    scrollbar-width: none; /* Hide scrollbar for Firefox */
  }

  .guidelines-grid::-webkit-scrollbar {
    display: none; /* Hide scrollbar for Chrome/Safari */
  }

  .guidelines-card {
    flex: 0 0 85%;
    scroll-snap-align: center;
  }
}