/* ==========================================================================
   ICCSI 2026: Institutional Design System & Core Stylesheet
   International Conference on Computing and Software Innovation
   ========================================================================== */

:root {
  --primary-900: #0a1e3b;
  --primary-800: #0d284f;
  --primary-700: #12396d;
  --primary-600: #1a4f91;
  --primary-500: #1d70b8; /* Signature Executive Blue */
  --primary-400: #3b8dd4;
  --primary-300: #7cb9eb;
  --primary-100: #e7f2fa;
  --primary-50:  #f2f8fc;

  --accent-amber: #d97706;
  --accent-amber-light: #fef3c7;
  --accent-teal: #0d9488;
  --accent-emerald: #059669;
  --accent-emerald-light: #ecfdf5;

  --neutral-900: #0f172a;
  --neutral-800: #1e293b;
  --neutral-700: #334155;
  --neutral-600: #475569;
  --neutral-500: #64748b;
  --neutral-400: #94a3b8;
  --neutral-300: #cbd5e1;
  --neutral-200: #e2e8f0;
  --neutral-100: #f1f5f9;
  --neutral-50:  #f8fafc;
  --white:       #ffffff;

  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 28px -4px rgba(15, 23, 42, 0.1), 0 4px 10px -2px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 24px 48px -12px rgba(15, 23, 42, 0.16);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Typography */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--neutral-50);
  color: var(--neutral-800);
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--neutral-900);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
}

p {
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--primary-500);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary-700);
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Top Announcement Banner */
.top-bar {
  background: var(--primary-900);
  color: var(--neutral-300);
  font-size: 0.82rem;
  padding: 7px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.top-bar-notice {
  display: flex;
  align-items: center;
  gap: 8px;
}

.top-bar-badge {
  background: var(--accent-amber);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.5px;
}

.top-bar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-bar-link {
  color: var(--neutral-300);
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.top-bar-link:hover {
  color: var(--white);
}

/* Header & Navigation Bar */
.site-header {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

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

.brand-logo-mark {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary-700), var(--primary-500));
  border-radius: var(--radius-md);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  box-shadow: 0 4px 10px rgba(29, 112, 184, 0.25);
  flex-shrink: 0;
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--neutral-900);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.brand-subtitle {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--primary-500);
  letter-spacing: 0.6px;
  text-transform: uppercase;
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Navigation Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--neutral-700);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 5px;
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-500);
  background: var(--primary-50);
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px 0;
  min-width: 210px;
  display: none;
  z-index: 100;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
  display: block;
}

.dropdown-link {
  display: block;
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--neutral-700);
}

.dropdown-link:hover {
  background: var(--primary-50);
  color: var(--primary-500);
}

/* Header CTAs */
.header-ctas {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-500);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(29, 112, 184, 0.2);
}

.btn-primary:hover {
  background: var(--primary-600);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(29, 112, 184, 0.28);
}

.btn-secondary {
  background: var(--neutral-100);
  color: var(--neutral-800);
  border-color: var(--neutral-200);
}

.btn-secondary:hover {
  background: var(--neutral-200);
  color: var(--neutral-900);
}

.btn-outline {
  background: transparent;
  color: var(--primary-500);
  border-color: var(--primary-500);
}

.btn-outline:hover {
  background: var(--primary-50);
  color: var(--primary-700);
}

.btn-white {
  background: var(--white);
  color: var(--primary-800);
}

.btn-white:hover {
  background: var(--primary-50);
  color: var(--primary-900);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 13px 26px;
  font-size: 1rem;
}

/* Mobile Toggle */
.mobile-toggle-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--neutral-300);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--neutral-800);
  font-size: 1.1rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--primary-900) 0%, #0d315e 50%, var(--primary-700) 100%);
  color: var(--white);
  padding: 70px 0 60px;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: radial-gradient(circle at 85% 20%, rgba(29, 112, 184, 0.25) 0%, transparent 60%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary-100);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.hero-pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.4);
}

.hero-title {
  font-size: clamp(2rem, 3.8vw, 3rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 18px;
  letter-spacing: -0.03em;
}

.hero-title span {
  color: #79c5f8;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 24px;
  max-width: 620px;
  line-height: 1.6;
}

.hero-meta-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 600;
}

.hero-meta-badge i {
  color: #60a5fa;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Hero Countdown Card */
.hero-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(10px);
}

.hero-card-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: 14px;
  margin-bottom: 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero-card-title {
  color: var(--white);
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Countdown Grid */
.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 22px;
}

.countdown-box {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 12px 6px;
  text-align: center;
}

.countdown-number {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-weight: 800;
  color: #38bdf8;
  line-height: 1;
  margin-bottom: 4px;
}

.countdown-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.hero-quick-links {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.quick-link-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
}

.quick-link-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateX(3px);
  color: var(--white);
}

/* Key Stats Bar */
.stats-strip {
  background: var(--white);
  border-bottom: 1px solid var(--neutral-200);
  padding: 24px 0;
  box-shadow: var(--shadow-sm);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  border-right: 1px solid var(--neutral-200);
}

.stat-item:last-child {
  border-right: none;
}

.stat-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-50);
  border: 1px solid var(--primary-100);
  border-radius: var(--radius-md);
  color: var(--primary-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--neutral-900);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--neutral-500);
  font-weight: 600;
}

/* Section Shared Headers */
.section {
  padding: 75px 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}

.section-subtitle-tag {
  color: var(--primary-500);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  display: inline-block;
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(1.8rem, 2.8vw, 2.4rem);
  font-weight: 800;
  color: var(--neutral-900);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1rem;
  color: var(--neutral-600);
}

/* 7-Stage Workflow */
.workflow-section {
  background: var(--neutral-50);
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 12px;
  position: relative;
}

.workflow-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  padding: 20px 14px;
  text-align: center;
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow-sm);
}

.workflow-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-300);
  box-shadow: var(--shadow-md);
}

.workflow-num {
  width: 28px;
  height: 28px;
  background: var(--primary-50);
  color: var(--primary-500);
  border: 1px solid var(--primary-100);
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.workflow-card:hover .workflow-num {
  background: var(--primary-500);
  color: var(--white);
}

.workflow-icon {
  font-size: 1.4rem;
  color: var(--neutral-700);
  margin-bottom: 10px;
}

.workflow-card:hover .workflow-icon {
  color: var(--primary-500);
}

.workflow-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 4px;
}

.workflow-desc {
  font-size: 0.72rem;
  color: var(--neutral-500);
  line-height: 1.4;
}

/* Important Dates Card Grid */
.dates-section {
  background: var(--white);
  border-top: 1px solid var(--neutral-200);
  border-bottom: 1px solid var(--neutral-200);
}

.dates-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.date-card {
  background: var(--neutral-50);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  transition: var(--transition);
  border-top: 4px solid var(--primary-500);
}

.date-card:hover {
  background: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.date-status {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-emerald);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.date-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 8px;
}

.date-val {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary-600);
}

/* Tracks Accordion / Grid */
.tracks-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.track-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.track-card:hover {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.track-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.track-icon-box {
  width: 44px;
  height: 44px;
  background: var(--primary-50);
  border: 1px solid var(--primary-100);
  border-radius: var(--radius-md);
  color: var(--primary-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.track-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--neutral-900);
}

.track-topics-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.track-topic-item {
  font-size: 0.85rem;
  color: var(--neutral-600);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.track-topic-item i {
  color: var(--primary-400);
  font-size: 0.75rem;
  margin-top: 5px;
}

/* Pricing Table */
.pricing-wrapper {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-bottom: 30px;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.pricing-table th, .pricing-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--neutral-200);
}

.pricing-table th {
  background: var(--primary-900);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.pricing-table tr:nth-child(even) td {
  background: var(--neutral-50);
}

.pricing-table tr:hover td {
  background: var(--primary-50);
}

.price-tag {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--primary-600);
}

.price-sub {
  font-size: 0.72rem;
  color: var(--neutral-500);
  display: block;
}

/* Bank Account Details Grid */
.bank-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 24px;
}

.bank-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.bank-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--neutral-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.bank-value {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--neutral-900);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.copy-btn {
  background: var(--neutral-100);
  border: 1px solid var(--neutral-200);
  color: var(--neutral-700);
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.copy-btn:hover {
  background: var(--primary-500);
  color: var(--white);
  border-color: var(--primary-500);
}

/* Forms & Inputs */
.form-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-lg);
  max-width: 820px;
  margin: 0 auto;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--neutral-800);
}

.form-label .req {
  color: #ef4444;
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  font-size: 0.92rem;
  color: var(--neutral-900);
  background: var(--white);
  border: 1.5px solid var(--neutral-300);
  border-radius: var(--radius-md);
  outline: none;
  font-family: var(--font-body);
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(29, 112, 184, 0.15);
}

.phone-input-group {
  display: flex;
  gap: 8px;
}

.phone-prefix {
  width: 110px;
  flex-shrink: 0;
}

/* File Upload Zone */
.file-dropzone {
  border: 2px dashed var(--neutral-300);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  background: var(--neutral-50);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.file-dropzone:hover {
  border-color: var(--primary-500);
  background: var(--primary-50);
}

.file-dropzone-icon {
  font-size: 2rem;
  color: var(--primary-500);
  margin-bottom: 8px;
}

.file-dropzone-text {
  font-size: 0.88rem;
  color: var(--neutral-700);
  font-weight: 600;
}

.file-dropzone-hint {
  font-size: 0.75rem;
  color: var(--neutral-500);
  margin-top: 4px;
}

.file-preview-box {
  display: none;
  background: var(--white);
  border: 1px solid var(--primary-200);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
}

/* Committee & Speaker Cards */
.people-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.person-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border-top: 4px solid var(--primary-500);
}

.person-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-400);
}

.person-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--primary-50);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 16px;
  border: 2px solid var(--primary-200);
}

.person-role {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--primary-500);
  background: var(--primary-50);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.person-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 4px;
}

.person-affil {
  font-size: 0.85rem;
  color: var(--neutral-600);
  line-height: 1.4;
}

/* Call to Action Bar */
.cta-banner {
  background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-700) 100%);
  color: var(--white);
  border-radius: var(--radius-xl);
  padding: 50px 40px;
  text-align: center;
  margin: 60px 0 20px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.cta-banner h2 {
  color: var(--white);
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 650px;
  margin: 0 auto 24px;
}

/* Footer */
.site-footer {
  background: var(--primary-900);
  color: var(--neutral-400);
  padding: 60px 0 25px;
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.88rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 36px;
  margin-bottom: 40px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-link {
  color: var(--neutral-400);
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--white);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.8rem;
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 58px;
  height: 58px;
  background: #25d366;
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  z-index: 9999;
  transition: var(--transition);
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.08) translateY(-3px);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.55);
  color: var(--white);
}

.whatsapp-tooltip {
  position: absolute;
  right: 70px;
  background: var(--neutral-900);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
  transform: translateX(-4px);
}

/* Modal Windows */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-content {
  background: var(--white);
  border-radius: var(--radius-xl);
  max-width: 650px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  position: relative;
  padding: 32px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--neutral-200);
  padding-bottom: 14px;
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--neutral-500);
  transition: var(--transition);
}

.modal-close-btn:hover {
  color: var(--neutral-900);
}

/* Admin Dashboard Specific Styles */
.admin-navbar {
  background: var(--white);
  border-bottom: 1px solid var(--neutral-200);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
}

.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 26px;
}

.admin-stat-card {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.admin-stat-val {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--neutral-900);
  line-height: 1;
  margin-top: 8px;
}

.admin-tabs {
  display: flex;
  gap: 8px;
  background: var(--neutral-100);
  padding: 6px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  width: fit-content;
}

.admin-tab-btn {
  padding: 8px 18px;
  font-size: 0.88rem;
  font-weight: 700;
  border: none;
  background: transparent;
  color: var(--neutral-600);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.admin-tab-btn.active {
  background: var(--white);
  color: var(--primary-600);
  box-shadow: var(--shadow-sm);
}

.admin-table-wrap {
  background: var(--white);
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.admin-table th, .admin-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--neutral-200);
  text-align: left;
}

.admin-table th {
  background: var(--neutral-50);
  font-weight: 700;
  color: var(--neutral-700);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.admin-table tr:hover td {
  background: var(--primary-50);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-online {
  background: var(--accent-emerald-light);
  color: var(--accent-emerald);
}

.badge-offline {
  background: var(--primary-100);
  color: var(--primary-700);
}

.badge-pending {
  background: var(--accent-amber-light);
  color: var(--accent-amber);
}

.badge-accepted {
  background: var(--accent-emerald-light);
  color: var(--accent-emerald);
}

/* ==========================================================================
   SCROLL ANIMATIONS, TRANSITIONS & KINETIC MICRO-INTERACTIONS
   ========================================================================== */

/* Top Reading Scroll Progress Bar */
.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3.5px;
  background: linear-gradient(90deg, #d97706, #1d70b8, #38bdf8);
  width: 0%;
  z-index: 99999;
  transition: width 0.12s ease-out;
  box-shadow: 0 0 8px rgba(29, 112, 184, 0.4);
}

/* Page Route Transition */
.page-enter {
  animation: pageFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes pageFadeIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll Reveal Elements */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger Delays for Grids */
.stagger-1 { transition-delay: 0.08s; }
.stagger-2 { transition-delay: 0.16s; }
.stagger-3 { transition-delay: 0.24s; }
.stagger-4 { transition-delay: 0.32s; }
.stagger-5 { transition-delay: 0.40s; }
.stagger-6 { transition-delay: 0.48s; }
.stagger-7 { transition-delay: 0.56s; }

/* Micro-interaction Keyframes */
@keyframes pulseSubtle {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.03);
  }
}

@keyframes floatGentle {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-5px);
  }
}

/* Mobile Navigation Backdrop */
.nav-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  z-index: 998;
  display: none;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.nav-backdrop.active {
  display: block;
  opacity: 1;
}

/* Currency Toggle Buttons */
.currency-toggle-btn {
  transition: all 0.25s ease !important;
  font-weight: 700 !important;
  cursor: pointer;
  border-radius: var(--radius-sm) !important;
}

.currency-toggle-btn.active {
  background: var(--primary-500) !important;
  color: #ffffff !important;
  border-color: var(--primary-500) !important;
  box-shadow: 0 4px 14px rgba(29, 112, 184, 0.35) !important;
}

.currency-toggle-btn:not(.active) {
  background: var(--neutral-100) !important;
  color: var(--neutral-700) !important;
  border-color: var(--neutral-300) !important;
  box-shadow: none !important;
}

.currency-toggle-btn:hover {
  transform: translateY(-1px);
}

/* Table Responsive Scrolling Container */
.table-responsive-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
  position: relative;
}

.table-scroll-hint {
  display: none;
  background: #eff6ff;
  color: #1d70b8;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  text-align: center;
  border: 1px solid #bfdbfe;
}

/* ==========================================================================
   ADVANCED MOBILE & RESPONSIVE DESIGN SYSTEM
   ========================================================================== */

@media (max-width: 1080px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .dates-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .admin-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .workflow-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .tracks-grid, .people-grid, .bank-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .dates-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .workflow-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  /* Top Announcement Bar */
  .top-bar-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .top-bar-notice {
    font-size: 0.75rem;
  }
  .top-bar-actions {
    width: 100%;
    justify-content: space-between;
    font-size: 0.75rem;
  }

  /* Header & Mobile Drawer */
  .header-inner {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 0;
  }
  .brand-wrapper {
    gap: 8px;
    min-width: 0;
    flex-shrink: 1;
    display: flex;
    align-items: center;
  }
  .brand-logo-mark {
    width: 36px;
    height: 36px;
    font-size: 0.95rem;
    flex-shrink: 0;
  }
  .brand-name {
    font-size: 1.05rem;
    white-space: nowrap;
  }
  .brand-subtitle {
    display: none !important; /* Hidden on mobile so Submit Paper aligns cleanly without bumping */
  }

  .header-ctas {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
  }

  .header-submit-btn {
    padding: 7px 12px !important;
    font-size: 0.8rem !important;
    height: 38px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin: 0;
  }

  .mobile-toggle-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    font-size: 1.15rem;
    border-radius: var(--radius-sm);
    padding: 0;
    margin: 0;
    flex-shrink: 0;
    border: 1.5px solid var(--neutral-300);
    color: var(--neutral-800);
  }

  /* Full Screen Slide-Down Mobile Navigation */
  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 16px 20px 24px;
    border-bottom: 2px solid var(--primary-100);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.15);
    z-index: 999;
    max-height: calc(100vh - 75px);
    overflow-y: auto;
    animation: mobileNavSlide 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }

  @keyframes mobileNavSlide {
    from {
      opacity: 0;
      transform: translateY(-12px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .nav-links.active {
    display: flex;
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--neutral-100);
  }

  .nav-item:last-child {
    border-bottom: none;
  }

  .nav-link {
    width: 100%;
    padding: 13px 8px;
    font-size: 0.95rem;
    justify-content: space-between;
    min-height: 46px;
  }

  /* Mobile Dropdown Sub-menu Accordion */
  .nav-dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--primary-300);
    background: var(--neutral-50);
    border-radius: var(--radius-sm);
    margin: 4px 0 10px 12px;
    padding: 6px 0;
    display: none;
  }

  .nav-dropdown.open .nav-dropdown-menu {
    display: block;
    animation: pageFadeIn 0.2s ease;
  }

  .nav-dropdown.open .nav-link i.fa-chevron-down {
    transform: rotate(180deg);
  }

  .nav-link i.fa-chevron-down {
    transition: transform 0.2s ease;
  }

  .dropdown-link {
    padding: 10px 14px;
    font-size: 0.88rem;
    color: var(--neutral-700);
  }

  /* Hero Section Mobile */
  .hero {
    padding: 40px 0 35px;
  }
  .hero-pill-badge {
    font-size: 0.72rem;
    padding: 5px 10px;
    margin-bottom: 14px;
  }
  .hero-title {
    font-size: 1.85rem;
    line-height: 1.2;
    margin-bottom: 14px;
  }
  .hero-subtitle {
    font-size: 0.92rem;
    margin-bottom: 20px;
    line-height: 1.55;
  }
  .hero-meta-badges {
    gap: 8px;
    margin-bottom: 22px;
  }
  .hero-meta-badge {
    font-size: 0.75rem;
    padding: 5px 10px;
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
    gap: 10px;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 13px;
    font-size: 0.92rem;
  }

  /* Hero Countdown Card on Mobile */
  .hero-card {
    padding: 20px 16px;
    border-radius: var(--radius-md);
  }
  .countdown-grid {
    gap: 6px;
  }
  .countdown-box {
    padding: 10px 4px;
  }
  .countdown-number {
    font-size: 1.35rem;
  }
  .countdown-label {
    font-size: 0.62rem;
  }

  /* Stats Strip */
  .stats-strip {
    padding: 16px 0;
  }
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--neutral-100);
    padding: 8px 10px;
  }
  .stat-item:last-child {
    border-bottom: none;
  }

  /* Section Spacing */
  .section {
    padding: 50px 0;
  }
  .section-header {
    margin-bottom: 32px;
  }
  .section-title {
    font-size: 1.6rem;
  }
  .section-desc {
    font-size: 0.9rem;
  }

  /* 7-Stage Workflow on Mobile */
  .workflow-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .workflow-card {
    padding: 16px 10px;
  }
  .workflow-num {
    width: 24px;
    height: 24px;
    font-size: 0.72rem;
    margin-bottom: 8px;
  }
  .workflow-icon {
    font-size: 1.2rem;
    margin-bottom: 6px;
  }
  .workflow-name {
    font-size: 0.78rem;
  }
  .workflow-desc {
    font-size: 0.68rem;
  }

  /* Important Dates */
  .dates-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .date-card {
    padding: 16px 14px;
  }
  .date-val {
    font-size: 1.05rem;
  }

  /* Tracks Cards */
  .track-card {
    padding: 18px 16px;
  }
  .track-header {
    gap: 10px;
  }
  .track-icon-box {
    width: 38px;
    height: 38px;
    font-size: 1.1rem;
  }
  .track-title {
    font-size: 0.98rem;
  }

  /* Pricing Table Mobile Horizontally Scrollable */
  .table-scroll-hint {
    display: block;
  }
  .pricing-table th, .pricing-table td {
    padding: 12px 14px;
    font-size: 0.8rem;
    white-space: nowrap;
  }
  .price-tag {
    font-size: 0.95rem;
  }

  /* Bank Account Details */
  .bank-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .bank-card {
    padding: 14px 12px;
  }
  .bank-value {
    font-size: 0.95rem;
    word-break: break-all;
  }
  .copy-btn {
    padding: 5px 10px;
  }

  /* Forms & Touch Optimization */
  .form-card {
    padding: 22px 16px;
    border-radius: var(--radius-lg);
  }
  .form-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  /* Prevent iOS Safari 16px auto-zoom */
  .form-control {
    font-size: 16px !important;
    padding: 12px 14px;
    min-height: 46px;
  }
  .phone-input-group {
    flex-direction: row;
  }
  .phone-prefix {
    width: 95px;
  }

  /* CTA Banner Mobile */
  .cta-banner {
    padding: 36px 20px;
    border-radius: var(--radius-lg);
    margin: 40px 0 10px;
  }
  .cta-banner h2 {
    font-size: 1.6rem;
  }
  .cta-banner p {
    font-size: 0.88rem;
  }

  /* Footer Mobile */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }

  /* Floating WhatsApp Button Mobile */
  .whatsapp-float {
    bottom: 18px;
    right: 18px;
    width: 52px;
    height: 52px;
    font-size: 28px;
  }
  .whatsapp-tooltip {
    display: none;
  }

  /* Modal Popup Mobile */
  .modal-overlay {
    padding: 12px;
  }
  .modal-content {
    padding: 24px 18px;
    border-radius: var(--radius-lg);
  }

  /* Admin Dashboard Mobile */
  .admin-navbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
  }
  .admin-stats-grid {
    grid-template-columns: 1fr;
  }
}


/* ==========================================================================
   UTILITY CLASSES & ADMIN/MOBILE BUTTON IMPROVEMENTS
   ========================================================================== */
.w-100 { width: 100% !important; }
.btn-block { width: 100% !important; display: flex !important; align-items: center !important; justify-content: center !important; }
.text-start { text-align: left !important; }
.text-center { text-align: center !important; }
.text-end { text-align: right !important; }
.d-flex { display: flex !important; }
.flex-column { flex-direction: column !important; }
.align-items-center { align-items: center !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.gap-1 { gap: 4px !important; }
.gap-2 { gap: 8px !important; }
.gap-3 { gap: 16px !important; }
.gap-4 { gap: 24px !important; }
.mt-1 { margin-top: 4px !important; }
.mt-2 { margin-top: 8px !important; }
.mt-3 { margin-top: 16px !important; }
.mt-4 { margin-top: 24px !important; }
.mb-1 { margin-bottom: 4px !important; }
.mb-2 { margin-bottom: 8px !important; }
.mb-3 { margin-bottom: 16px !important; }
.mb-4 { margin-bottom: 24px !important; }
.pt-3 { padding-top: 16px !important; }
.border-top { border-top: 1px solid var(--neutral-200) !important; }

/* Executive Admin Login Card */
.admin-login-box {
  background: #ffffff;
  border: 1px solid var(--neutral-200);
  border-radius: var(--radius-xl);
  padding: 44px 36px;
  box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.08);
  text-align: center;
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
}

.admin-login-btn {
  width: 100% !important;
  height: 48px !important;
  font-size: 0.95rem !important;
  font-weight: 700 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 8px !important;
  border-radius: var(--radius-md) !important;
  box-shadow: 0 4px 14px rgba(29, 112, 184, 0.3) !important;
  margin-top: 6px !important;
  cursor: pointer;
  box-sizing: border-box !important;
}

.admin-return-link {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 8px !important;
  color: var(--neutral-600) !important;
  font-size: 0.88rem !important;
  font-weight: 600 !important;
  text-decoration: none !important;
  padding: 8px 16px !important;
  border-radius: var(--radius-sm) !important;
  transition: var(--transition) !important;
}

.admin-return-link:hover {
  color: var(--primary-600) !important;
  background: var(--neutral-100) !important;
}

@media (max-width: 768px) {
  .admin-login-box {
    padding: 32px 20px !important;
    border-radius: var(--radius-lg) !important;
  }
}