/* File: samyam/css/main.css */

/* Core Design System Tokens */
:root {
  --color-canvas: #DDE5DB;
  --color-accent: #C26A2E; /* Saffron */
  --color-primary: #1B3B4F; /* Indigo */
  --color-mint: #A3D0B0;
  --color-text-primary: #2C281F;
  --color-text-secondary: #6B655A;
  
  --spacing-unit: 12px;
  --radius-pill: 9999px;
  --radius-card: 28px;
  --font-heading: 'Manrope', sans-serif;
  --font-body: 'Instrument Sans', sans-serif;
  
  --shadow-subtle: 0 4px 30px rgba(0, 0, 0, 0.03);
  --shadow-medium: 0 10px 40px rgba(0, 0, 0, 0.05);
}

/* Global Reset & Base Styling */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--color-canvas);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cpath d='M0 40 h80 M40 0 v80' stroke='rgba(27, 59, 79, 0.08)' stroke-width='1' fill='none'/%3E%3Ccircle cx='40' cy='40' r='3' fill='rgba(27, 59, 79, 0.12)'/%3E%3Cpath d='M10 10 h20 v20' stroke='rgba(27, 59, 79, 0.06)' stroke-width='1' fill='none'/%3E%3Ccircle cx='30' cy='30' r='1.5' fill='rgba(27, 59, 79, 0.09)'/%3E%3Cpath d='M70 70 h-20 v-20' stroke='rgba(27, 59, 79, 0.06)' stroke-width='1' fill='none'/%3E%3Ccircle cx='50' cy='50' r='1.5' fill='rgba(27, 59, 79, 0.09)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  animation: tech-pan 20s linear infinite;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

@keyframes tech-pan {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 80px 80px;
  }
}

/* Base Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-weight: 600;
  line-height: 1.25;
}

/* Layout Utilities (with min 40% negative space check) */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: calc(var(--spacing-unit) * 2);
  z-index: 1;
  position: relative;
}

.app-viewport {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(var(--spacing-unit) * 3) 0;
}

/* Grid & Typography Constraints */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: calc(var(--spacing-unit) * 3);
  width: 100%;
  margin-top: calc(var(--spacing-unit) * 2);
}

@media (max-width: 768px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 3);
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid transparent;
  outline: none;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #FFFFFF;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(194, 106, 46, 0.4);
}

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

.btn-outline:hover {
  background-color: rgba(194, 106, 46, 0.05);
  transform: translateY(-2px);
}

.btn-muted {
  background-color: transparent;
  color: var(--color-text-secondary);
}

.btn-danger {
  color: #D32F2F;
  border: 1px solid #D32F2F;
}

.btn-danger:hover {
  background-color: rgba(211, 47, 47, 0.05);
}

/* Main Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 3);
  margin-bottom: calc(var(--spacing-unit) * 2);
  transition: opacity 0.5s ease;
}

.header-logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: 1px;
  color: var(--color-primary);
  cursor: pointer;
}

.header-nav {
  display: flex;
  gap: calc(var(--spacing-unit) * 2);
}

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 600;
  transition: color 0.3s ease;
  font-size: 0.95rem;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing-unit) * 2);
}

.action-btn {
  background: none;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  position: relative;
}

.action-btn .badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background-color: var(--color-accent);
  color: white;
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 10px;
}

.action-btn.listening {
  color: var(--color-accent) !important;
  filter: drop-shadow(0 0 6px rgba(194, 106, 46, 0.6));
}

/* Global Hidden class */
.hidden {
  display: none !important;
}

/* Animations */
@keyframes pulse-gentle {
  0% { transform: scale(1); opacity: 0.98; }
  50% { transform: scale(1.01); opacity: 1; }
  100% { transform: scale(1); opacity: 0.98; }
}

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

/* PWA Install Banner styling */
.install-banner {
  position: fixed;
  bottom: calc(var(--spacing-unit) * 3);
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 600px;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: calc(var(--spacing-unit) * 2);
  padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 3);
}

@media (max-width: 600px) {
  .install-banner {
    flex-direction: column;
    align-items: flex-start;
  }
  .install-actions {
    width: 100%;
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-unit);
  }
}

/* Mobile App Header layout wrap */
@media (max-width: 768px) {
  .app-header {
    flex-wrap: wrap;
    gap: calc(var(--spacing-unit) * 1.5);
    padding: var(--spacing-unit) calc(var(--spacing-unit) * 2);
  }

  .header-logo {
    font-size: 1.3rem;
  }

  .header-nav {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    padding: calc(var(--spacing-unit) * 1) 0;
    gap: var(--spacing-unit);
    border-top: 1px solid rgba(27, 59, 79, 0.05);
    -webkit-overflow-scrolling: touch;
  }

  /* Hide scrollbar for a cleaner iOS look */
  .header-nav::-webkit-scrollbar {
    display: none;
  }

  .nav-link {
    font-size: 0.85rem;
    white-space: nowrap;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.45);
    border-radius: var(--radius-pill);
    border: 1px solid rgba(27, 59, 79, 0.05);
  }
  
  .nav-link.active {
    background: rgba(194, 106, 46, 0.1);
    color: var(--color-primary);
  }
}