/* ========================================
   ECOREG Design System
   ======================================== */

/* CSS Variables / Design Tokens */
:root {
  /* Colors */
  --color-primary: #14497c;
  --color-primary-dark: #0f3a64;
  --color-secondary: #50b848;
  --color-accent: #00a8e1;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-gray-light: #f5f5f5;
  --color-gray-medium: #e0e0e0;
  --color-gray-dark: #333333;
  --color-text: #333333;
  --color-border: #e0e0e0;
  
  /* Typography */
  --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --bs-font-sans-serif: var(--font-primary);
  --bs-body-font-family: var(--font-primary);
  --bs-btn-font-family: var(--font-primary);
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 2rem;      /* 32px */
  
  /* Hero typography */
  --hero-title-size: clamp(1.4rem, 2.6vw, 2.1rem);
  --hero-subtitle-size: clamp(0.9rem, 1.9vw, 1.2rem);
  --hero-title-line-height: 1.3;
  --hero-subtitle-line-height: 1.48;
  --hero-title-weight: var(--font-weight-bold);
  --hero-subtitle-weight: var(--font-weight-medium);
  --hero-letter-spacing: 0.04em;
  --hero-text-max-width: 960px;
  --hero-gap: clamp(0.65rem, 1.8vw, 1.1rem);
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  
  /* Breakpoints */
  --breakpoint-sm: 480px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  --breakpoint-2xl: 1440px;
  
  /* Container */
  --container-max-width: 1440px;
  --container-padding: var(--spacing-md);
  
  /* Header */
  --header-height: 80px;
  --header-height-mobile: 60px;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
}

/* ========================================
   Reset & Base Styles
   ======================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
  margin: 0;
  padding: 0;
}

/* Enforce the primary font on common text and form elements */
body,
button,
input,
select,
textarea,
option,
a,
p,
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-primary);
}

/* Typography alignment defaults */
h1,
h2,
h3,
h4,
h5,
h6 {
  text-align: center;
}

p,
.lead {
  text-align: justify;
  text-justify: inter-word;
}

main {
  flex: 1 0 auto;
}

footer {
  flex-shrink: 0;
}

/* ========================================
   Container System
   ======================================== */

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
  box-sizing: border-box;
}

@media (min-width: 768px) {
  .container {
    padding-left: calc(var(--container-padding) * 2);
    padding-right: calc(var(--container-padding) * 2);
  }
}

@media (max-width: 767px) {
  .container {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
  }
}

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  color: var(--color-gray-dark);
}

h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

p {
  margin-bottom: var(--spacing-md);
}

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

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

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

/* ========================================
   Utility Classes
   ======================================== */

.d-flex {
  display: flex;
}

.align-items-center {
  align-items: center;
}

.justify-content-center {
  justify-content: center;
}

.justify-content-between {
  justify-content: space-between;
}

.text-center {
  text-align: center;
}

.text-white {
  color: var(--color-white) !important;
}

.bg-primary {
  background-color: var(--color-primary);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ========================================
   Scroll Animations
   ======================================== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: opacity, transform;
}

.animate-on-scroll.animate-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll,
  .animate-on-scroll.animate-visible {
    transition: none !important;
    transform: none !important;
    opacity: 1 !important;
  }
}

/* ========================================
   Grid System
   ======================================== */

.row {
  display: flex;
  flex-wrap: wrap;
  margin-left: calc(var(--spacing-md) * -0.5);
  margin-right: calc(var(--spacing-md) * -0.5);
  width: 100%;
  box-sizing: border-box;
}

.col {
  flex: 1 0 0%;
  padding-left: calc(var(--spacing-md) * 0.5);
  padding-right: calc(var(--spacing-md) * 0.5);
  min-width: 0;
  box-sizing: border-box;
}

/* ========================================
   Responsive Utilities
   ======================================== */

/* Mobile First Approach */
@media (max-width: 767px) {
  .hide-mobile {
    display: none !important;
  }
}

@media (min-width: 768px) {
  .hide-desktop {
    display: none !important;
  }
}

/* ========================================
   Accessibility
   ======================================== */

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

.skip-to-content {
  position: absolute;
  left: -9999px;
  z-index: 999;
  padding: 1rem 1.5rem;
  background: var(--color-primary);
  color: var(--color-white);
  text-decoration: none;
}

.skip-to-content:focus {
  left: 50%;
  transform: translateX(-50%);
  top: 0;
}

/* Ensure images and media are responsive */
img, video, iframe, embed, object {
  max-width: 100%;
  height: auto;
}

/* Prevent text overflow */
pre, code {
  overflow-x: auto;
  max-width: 100%;
  word-wrap: break-word;
}

p, span, div {
  word-wrap: break-word;
  overflow-wrap: break-word;
  max-width: 100%;
}

/* Table responsiveness */
table {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  display: block;
}

/* ========================================
   Activities Page Layout
   ======================================== */

/* Ensure smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* ========================================
   Activities Hero Section
   ======================================== */

.activities-hero {
  position: relative;
  width: 100%;
  height: 50vh;
  min-height: 400px;
  max-height: 600px;
  margin: 0;
  padding: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

#water-container {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
}

#water-container canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.activities-hero .hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  width: 100%;
  max-width: var(--hero-text-max-width);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--hero-gap);
}

.activities-hero .hero-title {
  font-family: var(--font-primary);
  font-size: var(--hero-title-size);
  font-weight: var(--hero-title-weight);
  line-height: var(--hero-title-line-height);
  color: var(--color-white);
  margin: 0;
  text-shadow: 3px 3px 12px rgba(0, 0, 0, 0.5);
  letter-spacing: var(--hero-letter-spacing);
  animation: fadeInUp 0.8s ease-out;
}

.activities-hero .hero-subtitle {
  font-family: var(--font-primary);
  font-size: var(--hero-subtitle-size);
  font-weight: var(--hero-subtitle-weight);
  line-height: var(--hero-subtitle-line-height);
  color: var(--color-white);
  margin: 0;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.4);
  animation: fadeInUp 0.8s ease-out 0.15s both;
  padding: 0 var(--spacing-md);
}

/* Filter Buttons */
.filter-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeInUp 0.8s ease-out 0.3s both;
  padding: 0 var(--spacing-md);
}

.filter-btn {
  padding: 0.625rem 1.5rem;
  font-family: var(--font-primary);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
  white-space: nowrap;
}

.filter-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.6);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.filter-btn.active {
  background: var(--color-white);
  color: #0066cc;
  border-color: var(--color-white);
  text-shadow: none;
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.3);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Activities Section */
.activities-section {
  padding: var(--spacing-3xl) 0;
  background: #ffffff;
}

.activities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  transition: opacity 0.3s ease;
}

/* Activity Card */
.activity-card {
  background: linear-gradient(135deg, #14497c 0%, #1a5590 100%);
  color: #ffffff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 26px rgba(20, 73, 124, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.activity-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 45px rgba(20, 73, 124, 0.55);
}

.activity-image {
  width: 100%;
  height: 200px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.activity-content {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  flex: 1;
  color: inherit;
}

.activity-category {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  align-self: flex-start;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.activity-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: #ffffff;
  margin: 0;
  line-height: 1.3;
}

.activity-date {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
  margin: 0;
}

.activity-description {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
  margin: 0;
  flex: 1;
}

.activity-status {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: 20px;
  align-self: flex-start;
  margin-top: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.activity-status.completed {
  background: rgba(76, 175, 80, 0.35);
  border-color: rgba(198, 255, 211, 0.4);
}

.activity-status.planned {
  background: rgba(33, 150, 243, 0.35);
  border-color: rgba(187, 222, 251, 0.4);
}

/* Responsive adjustments */
@media (min-width: 1440px) {
  .activities-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) and (max-width: 1439px) {
  .activities-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 1023px) {
  .activities-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
  }
}

@media (max-width: 768px) {
  .activities-hero {
    height: 45vh;
    min-height: 350px;
  }
  
  .activities-hero .hero-content {
    padding: clamp(1.25rem, 4vw, 1.75rem);
    gap: var(--hero-gap);
  }
  
  .activities-hero .hero-title {
    font-size: var(--hero-title-size);
  }
  
  .activities-hero .hero-subtitle {
    font-size: var(--hero-subtitle-size);
  }
  
  .filter-buttons {
    gap: 0.5rem;
    padding: 0 var(--spacing-sm);
  }
  
  .filter-btn {
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
  }
  
  .activities-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .activities-section {
    padding: var(--spacing-2xl) 0;
  }
  
  .activity-card {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .activities-hero {
    height: 40vh;
    min-height: 300px;
  }
  
  .activities-hero .hero-content {
    gap: var(--hero-gap);
    padding: clamp(1rem, 4vw, 1.5rem);
  }
  
  .activities-hero .hero-title {
    font-size: var(--hero-title-size);
  }
  
  .activities-hero .hero-subtitle {
    font-size: var(--hero-subtitle-size);
  }
  
  .filter-buttons {
    gap: 0.4rem;
  }
  
  .filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
  }
  
  .activity-image {
    height: 180px;
  }
  
  .activity-content {
    padding: var(--spacing-md);
  }
  
  .activities-section {
    padding: var(--spacing-xl) 0;
  }
}

@media (max-width: 360px) {
  .activities-hero .hero-title {
    font-size: var(--hero-title-size);
  }
  
  .activities-hero .hero-subtitle {
    font-size: var(--hero-subtitle-size);
  }
  
  .filter-btn {
    padding: 0.4rem 0.8rem;
    font-size: 0.75rem;
  }
}

/* ========================================
   Calendar Section
   ======================================== */

.calendar-section {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
}

.section-title {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-dark);
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  padding: 0 var(--spacing-md);
}

.calendar-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
  max-width: 600px;
  width: 100%;
  padding: var(--spacing-xl) 0;
}

.calendar {
  background: linear-gradient(135deg, #0066cc, #00a8e1);
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 102, 204, 0.3);
  height: 520px;
  perspective: 1000px;
  transition: transform 0.9s;
  transform-style: preserve-3d;
  width: 100%;
  position: relative;
}

/* Front - Calendar */
.calendar .front {
  transform: rotateY(0deg);
  backface-visibility: hidden;
  position: absolute;
  width: 100%;
  height: 100%;
}

.calendar .back {
  transform: rotateY(180deg);
  backface-visibility: hidden;
  position: absolute;
  width: 100%;
  height: 100%;
  display: none;
}

.current-date {
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  display: flex;
  justify-content: center;
  padding: 30px 40px;
}

.current-date h1 {
  color: #ffffff;
  font-size: 1.5em;
  font-weight: 600;
  font-family: var(--font-primary);
}

.week-days {
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  padding: 25px 40px 15px;
  font-size: 0.9em;
  opacity: 0.9;
}

.week-days li {
  list-style: none;
}

.weeks {
  color: #fff;
  display: flex;
  flex-direction: column;
  padding: 0 40px 20px;
}

.weeks div {
  display: flex;
  font-size: 1.1em;
  font-weight: 400;
  justify-content: space-between;
  margin-bottom: 15px;
  width: 100%;
}

.weeks .last-month {
  opacity: 0.3;
}

.weeks span {
  padding: 10px;
  border-radius: 50%;
  transition: all 0.3s ease;
  cursor: pointer;
  min-width: 40px;
  text-align: center;
}

.weeks span.active {
  background: #50b848;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(80, 184, 72, 0.4);
}

.weeks span:not(.last-month):hover {
  background: rgba(255, 255, 255, 0.2);
  font-weight: 600;
  transform: scale(1.1);
}

.weeks .event {
  position: relative;
  font-weight: 600;
}

.weeks .event:after {
  content: '•';
  color: #f78536;
  font-size: 1.6em;
  position: absolute;
  right: 2px;
  top: -8px;
}

/* Back - Event form */
.calendar .back input {
  background: none;
  border: none;
  border-bottom: 2px solid rgba(255, 255, 255, 0.4);
  color: #ffffff;
  font-size: 1.3em;
  font-weight: 500;
  padding: 30px 40px;
  width: 100%;
  font-family: var(--font-primary);
}

.calendar .back input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.calendar .back .info {
  color: #ffffff;
  display: flex;
  flex-direction: column;
  font-weight: 600;
  font-size: 1.1em;
  padding: 30px 40px;
}

.calendar .back .info div:not(.observations) {
  margin-bottom: 30px;
}

.calendar .back .info span {
  font-weight: 400;
  opacity: 0.9;
}

.calendar .back .info .date {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.calendar .back .info .date p {
  flex: 1;
}

.calendar .back .info .address p,
.calendar .back .info .observations p {
  width: 100%;
}

.calendar .back .actions {
  bottom: 0;
  border-top: 2px solid rgba(255, 255, 255, 0.3);
  display: flex;
  justify-content: space-between;
  position: absolute;
  width: 100%;
}

.calendar .back .actions button {
  background: none;
  border: 0;
  color: #fff;
  font-weight: 600;
  letter-spacing: 1px;
  margin: 0;
  padding: 25px 0;
  text-transform: uppercase;
  width: 100%;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font-primary);
  font-size: 0.95em;
}

.calendar .back .actions button:hover {
  background: rgba(255, 255, 255, 0.15);
}

.calendar .back .actions button:active {
  background: rgba(255, 255, 255, 0.25);
}

/* Flip animation */
.calendar.flip {
  transform: rotateY(180deg);
}

/* Responsive Calendar */
@media (max-width: 1024px) {
  .calendar-section {
    padding: var(--spacing-2xl) 0;
  }
}

@media (max-width: 768px) {
  .calendar-section {
    padding: var(--spacing-xl) 0;
  }
  
  .section-title {
    font-size: clamp(1.25rem, 3.5vw, 2rem);
    margin-bottom: var(--spacing-xl);
  }
  
  .calendar-container {
    max-width: 100%;
    padding: var(--spacing-md);
  }
  
  .calendar {
    height: 480px;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .current-date {
    padding: 25px 30px;
  }
  
  .current-date h1 {
    font-size: 1.3em;
  }
  
  .week-days {
    padding: 20px 30px 10px;
    font-size: 0.85em;
  }
  
  .weeks {
    padding: 0 30px 15px;
  }
  
  .weeks div {
    font-size: 1em;
    margin-bottom: 12px;
  }
  
  .weeks span {
    padding: 8px;
    min-width: 35px;
  }
  
  .calendar .back input {
    font-size: 1.2em;
    padding: 25px 30px;
  }
  
  .calendar .back .info {
    font-size: 1em;
    padding: 25px 30px;
  }
  
  .calendar .back .actions button {
    padding: 20px 0;
    font-size: 0.9em;
  }
}

@media (max-width: 480px) {
  .section-title {
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    margin-bottom: var(--spacing-lg);
  }
  
  .calendar-container {
    padding: var(--spacing-sm);
  }
  
  .calendar {
    height: 440px;
  }
  
  .current-date {
    padding: 18px 20px;
  }
  
  .current-date h1 {
    font-size: 1.15em;
  }
  
  .week-days {
    padding: 15px 20px 8px;
    font-size: 0.7em;
  }
  
  .weeks {
    padding: 0 20px 10px;
  }
  
  .weeks div {
    font-size: 0.9em;
    margin-bottom: 10px;
  }
  
  .weeks span {
    padding: 6px 4px;
    min-width: 32px;
    font-size: 0.95em;
  }
  
  .calendar .back input {
    font-size: 1em;
    padding: 18px 20px;
  }
  
  .calendar .back .info {
    font-size: 0.9em;
    padding: 18px 20px;
  }
  
  .calendar .back .info .date {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .calendar .back .actions button {
    padding: 16px 0;
    font-size: 0.8em;
  }
}

@media (max-width: 360px) {
  .calendar {
    height: 420px;
  }
  
  .current-date {
    padding: 15px 15px;
  }
  
  .current-date h1 {
    font-size: 1em;
  }
  
  .week-days {
    padding: 12px 15px 6px;
    font-size: 0.65em;
  }
  
  .weeks {
    padding: 0 15px 8px;
  }
  
  .weeks div {
    font-size: 0.85em;
    margin-bottom: 8px;
  }
  
  .weeks span {
    padding: 5px 3px;
    min-width: 28px;
    font-size: 0.9em;
  }
  
  .calendar .back input {
    font-size: 0.95em;
    padding: 15px 15px;
  }
  
  .calendar .back .info {
    font-size: 0.85em;
    padding: 15px 15px;
  }
  
  .calendar .back .actions button {
    padding: 14px 0;
    font-size: 0.75em;
  }
}

/* ========================================
   Documents Hero Section
   ======================================== */

.documents-hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}

#documents-canvas {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.documents-hero .hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  width: 100%;
  max-width: 1200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
}

.documents-hero .hero-title {
  font-family: var(--font-primary);
  font-size: clamp(3rem, 10vw, 5rem);
  font-weight: 700;
  color: var(--color-white);
  margin: 0;
  text-shadow: 0 0 20px rgba(0, 0, 0, 1);
  letter-spacing: -0.02em;
  text-transform: uppercase;
  line-height: 100%;
  user-select: none;
}

.documents-hero .hero-subtitle {
  font-family: var(--font-primary);
  font-size: clamp(2rem, 7vw, 3.75rem);
  font-weight: 500;
  color: var(--color-white);
  margin: 0;
  text-shadow: 0 0 20px rgba(0, 0, 0, 1);
  text-transform: uppercase;
  line-height: 100%;
  user-select: none;
}

.documents-hero .filter-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--spacing-lg);
}

.documents-hero .filter-btn {
  padding: 0.75rem 1.75rem;
  font-family: var(--font-primary);
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  background: rgba(0, 0, 0, 0.5);
  border: 2px solid transparent;
  border-radius: 75px;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  text-transform: uppercase;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.documents-hero .filter-btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  aspect-ratio: 1/1;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: conic-gradient(#fff 0%, #000 3%, #0066cc 60%, #fff 100%);
  animation: spin linear 2s infinite;
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: all 0.3s ease;
}

.documents-hero .filter-btn:hover::before,
.documents-hero .filter-btn.active::before {
  width: 150%;
  height: 150%;
  opacity: 0.3;
}

.documents-hero .filter-btn:hover {
  border-color: rgba(0, 102, 204, 0.5);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 102, 204, 0.3);
}

.documents-hero .filter-btn.active {
  background: rgba(0, 102, 204, 0.8);
  border-color: #00a8e1;
  box-shadow: 0 0 20px rgba(0, 168, 225, 0.5);
}

@keyframes spin {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* Documents Section */
.documents-section {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
  min-height: 100vh;
}

.documents-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
  transition: opacity 0.3s ease;
  max-width: 1400px;
  margin: 0 auto;
}

/* Document Card - Görseldeki gibi */
.document-card {
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 102, 204, 0.08);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 1px solid #e8f2ff;
}

.document-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 102, 204, 0.15);
}

.document-badge {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: #FFF9E6;
  color: #856404;
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-sm);
  align-self: flex-start;
}

.document-content {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  flex: 1;
}

.document-title {
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-gray-dark);
  margin: 0 0 var(--spacing-xs) 0;
  line-height: 1.4;
}

.document-date {
  font-size: 0.875rem;
  color: #666;
  font-weight: 400;
  margin: 0 0 var(--spacing-sm) 0;
}

.document-description {
  font-size: 0.875rem;
  color: #666;
  line-height: 1.6;
  margin: 0 0 var(--spacing-md) 0;
  flex: 1;
}

.document-actions {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: auto;
  padding-top: var(--spacing-sm);
  border-top: 1px solid #f0f0f0;
}

.document-btn {
  flex: 1;
  padding: 0.625rem 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-transform: capitalize;
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
}

.document-btn.primary {
  background: #14497c;
  color: white;
}

.document-btn.primary:hover {
  background: #0f3a64;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(20, 73, 124, 0.2);
}

.document-btn.secondary {
  background: transparent;
  color: #14497c;
  border: 1.5px solid #14497c;
}

.document-btn.secondary:hover {
  background: #14497c;
  color: white;
}

.document-btn::before {
  content: '↓';
  font-size: 1rem;
  font-weight: bold;
}

.document-btn.secondary::before {
  content: '👁';
}

/* Responsive */
@media (min-width: 1441px) {
  .documents-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1025px) and (max-width: 1440px) {
  .documents-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .documents-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
}

@media (max-width: 768px) {
  .documents-hero {
    height: 100vh;
    min-height: 100vh;
  }
  
  .documents-hero .hero-content {
    padding: var(--spacing-lg) var(--spacing-md);
    gap: var(--spacing-md);
  }
  
  .documents-hero .filter-buttons {
    gap: 0.5rem;
    margin-top: var(--spacing-md);
  }
  
  .documents-hero .filter-btn {
    padding: 0.6rem 1.25rem;
    font-size: 0.8rem;
  }
  
  .documents-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .documents-section {
    padding: var(--spacing-2xl) 0;
  }
}

@media (max-width: 480px) {
  .documents-hero {
    height: 100vh;
    min-height: 100vh;
  }
  
  .documents-hero .hero-content {
    gap: var(--spacing-sm);
  }
  
  .documents-hero .filter-buttons {
    gap: 0.4rem;
  }
  
  .documents-hero .filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
  }
  
  .documents-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .document-card {
    max-width: 100%;
  }
}