/* Platforma Riscuri Inundații - Universitatea Ștefan cel Mare din Suceava */
/* Sistem de Design Modern Bazat pe Identitatea Vizuală USV */

:root {
  /* Paleta Culori USV */
  --color-primary: #003366;       /* Albastru USV - principal */
  --color-primary-light: #0055A4; /* Albastru USV - lighter */
  --color-primary-dark: #002244;  /* Albastru USV - darker */
  --color-accent: #FFD700;        /* Auriu USV - accent */
  --color-accent-light: #FFE066;  /* Auriu USV - lighter */
  --color-surface: #F8FAFC;       /* Fundal principal */
  --color-surface-alt: #F1F5F9;   /* Fundal alternativ */
  --color-text-primary: #1E293B;  /* Text principal */
  --color-text-secondary: #475569; /* Text secundar */
  --color-text-muted: #64748B;    /* Text muted */
  --color-text-light: #94A3B8;    /* Text light */

  /* Culori Risc - Adaptate la Paleta USV */
  --color-risk-high: #DC2626;     /* Roșu pentru risc ridicat */
  --color-risk-medhigh: #EA580C;  /* Portocaliu pentru risc mediu-ridicat */
  --color-risk-med: #D97706;      /* Galben pentru risc mediu */
  --color-risk-low: #059669;      /* Verde pentru risc scăzut */

  /* Culori Neutre */
  --color-white: #FFFFFF;
  --color-gray-50: #F8FAFC;
  --color-gray-100: #F1F5F9;
  --color-gray-200: #E2E8F0;
  --color-gray-300: #CBD5E1;
  --color-gray-400: #94A3B8;
  --color-gray-500: #64748B;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1E293B;
  --color-gray-900: #0F172A;

  /* Umbre - Mai Subtile */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.08);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.12), 0 2px 4px -2px rgb(0 0 0 / 0.12);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.15), 0 4px 6px -4px rgb(0 0 0 / 0.15);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.2), 0 8px 10px -6px rgb(0 0 0 / 0.2);

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;

  /* Typography Scale (Fluid) */
  --font-size-xs: clamp(0.75rem, 2vw, 0.875rem);
  --font-size-sm: clamp(0.875rem, 2.5vw, 1rem);
  --font-size-base: clamp(1rem, 3vw, 1.125rem);
  --font-size-lg: clamp(1.125rem, 3.5vw, 1.25rem);
  --font-size-xl: clamp(1.25rem, 4vw, 1.5rem);
  --font-size-2xl: clamp(1.5rem, 5vw, 2rem);
  --font-size-3xl: clamp(2rem, 6vw, 2.5rem);
  --font-size-4xl: clamp(2.5rem, 7vw, 3rem);
  --font-size-5xl: clamp(3rem, 8vw, 4rem);

  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
}

/* Focus Styles for Accessibility */
*:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Skip to Content */
.skip-to-content {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-2) var(--space-4);
  text-decoration: none;
  border-radius: var(--radius-md);
  z-index: 1000;
  transition: top var(--transition-fast);
}

.skip-to-content:focus {
  top: 6px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

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

a:hover, a:focus {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Layout Components */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.section {
  padding: var(--space-16) 0;
}

.section--hero {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-white) 100%);
}

/* Header - Stil Academic USV */
.header {
  position: sticky;
  top: 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-bottom: 3px solid var(--color-accent);
  z-index: 100;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
}

.header__logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.header__logo::before {
  content: "🎓";
  font-size: 1.5em;
}

.header__nav {
  display: flex;
  gap: var(--space-6);
}

.header__nav-link {
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  transition: all var(--transition-fast);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  position: relative;
}

.header__nav-link:hover,
.header__nav-link:focus,
.header__nav-link--active {
  color: var(--color-accent);
  background: rgba(255, 255, 255, 0.1);
  text-decoration: none;
  transform: translateY(-1px);
}

.header__nav-link--active::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

/* Mobile Menu Toggle */
.header__mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  cursor: pointer;
  padding: var(--space-2);
}

/* Hero Section - Stil Academic Modern */
.hero {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-primary) 100%);
  border-radius: 2px;
}

.hero__title {
  margin-bottom: var(--space-6);
  color: var(--color-primary);
  font-weight: 800;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  line-height: 1.2;
  position: relative;
}

.hero__title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-8);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
  font-weight: 400;
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons - Stil Academic Modern */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: var(--font-size-base);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  gap: var(--space-2);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
}

.btn--primary:hover,
.btn--primary:focus {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-accent);
  position: relative;
}

.btn--secondary::before {
  background: linear-gradient(90deg, transparent, var(--color-accent-light), transparent);
}

.btn--secondary:hover,
.btn--secondary:focus {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Cards - Stil Academic Modern */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-accent) 100%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

.card:hover::before {
  opacity: 1;
}

.card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
  color: var(--color-primary);
  font-weight: 700;
  position: relative;
}

.card__title::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.card__content {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Feature Cards Grid */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-12);
}

/* Map Section */
.map-section {
  background: var(--color-gray-50);
  padding: var(--space-12) 0;
}

.map-container {
  position: relative;
  height: 600px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--color-white);
}

.map-sidebar {
  position: absolute;
  top: 0;
  left: 0;
  width: 320px;
  height: 100%;
  background: var(--color-white);
  border-right: 1px solid var(--color-gray-200);
  padding: var(--space-6);
  overflow-y: auto;
  z-index: 10;
}

.map-sidebar--mobile {
  display: none;
}

.map-area {
  position: absolute;
  top: 0;
  left: 320px;
  right: 0;
  height: 100%;
}

.map-toggle {
  display: none;
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 20;
  background: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-md);
  cursor: pointer;
}

/* Filters */
.filters {
  margin-bottom: var(--space-6);
}

.filters__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

.filters__group {
  margin-bottom: var(--space-4);
}

.filters__label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-2);
  color: var(--color-text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  background: var(--color-white);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.checkbox-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.checkbox-input {
  width: auto;
  margin: 0;
}

.checkbox-label {
  font-weight: normal;
  margin-bottom: 0;
}

/* Status Chips */
.chip {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.chip--high { background: var(--color-risk-high); color: var(--color-white); }
.chip--medhigh { background: var(--color-risk-medhigh); color: var(--color-white); }
.chip--med { background: var(--color-risk-med); color: #000; }
.chip--low { background: var(--color-risk-low); color: var(--color-white); }

/* Footer - Stil Academic USV */
.footer {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: rgba(255, 255, 255, 0.9);
  padding: var(--space-16) 0 var(--space-8);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-primary-light) 50%, var(--color-accent) 100%);
}

.footer__container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
  position: relative;
  z-index: 1;
}

.footer__section h4 {
  color: var(--color-accent);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-lg);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
}

.footer__section h4::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

.footer__section p,
.footer__section a {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-2);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer__section a:hover,
.footer__section a:focus {
  color: var(--color-accent);
  text-decoration: underline;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: var(--space-6);
  margin-top: var(--space-8);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  position: relative;
  z-index: 1;
}

.footer__bottom::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 1px;
  background: var(--color-accent);
}

/* Footer University Branding */
.footer__university {
  text-align: center;
  margin-bottom: var(--space-6);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__university h3 {
  color: var(--color-accent);
  margin-bottom: var(--space-2);
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.footer__university p {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .header__nav {
    display: none;
  }

  .header__mobile-toggle {
    display: block;
  }

  .header__nav--mobile {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--space-4);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
  }

  .map-sidebar {
    display: none;
  }

  .map-sidebar--mobile {
    display: block;
    position: fixed;
    top: 0;
    left: -320px;
    width: 280px;
    height: 100vh;
    background: var(--color-white);
    border-right: 1px solid var(--color-gray-200);
    padding: var(--space-6);
    overflow-y: auto;
    z-index: 1000;
    transition: left var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }

  .map-sidebar--mobile.open {
    left: 0;
  }

  .map-area {
    left: 0;
  }

  .map-toggle {
    display: block;
  }

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

  .container {
    padding: 0 var(--space-4);
  }

  .section {
    padding: var(--space-8) 0;
  }

  .section--hero {
    padding: var(--space-12) 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-3);
  }

  .header__container {
    padding: var(--space-3) 0;
  }

  .card {
    padding: var(--space-4);
  }
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .map-toggle,
  .btn {
    display: none !important;
  }

  .map-container {
    height: 400px;
    box-shadow: none;
    border: 1px solid var(--color-gray-300);
  }
}