/* ========== VARIABLES Y TEMAS ========== */
:root {
  --sidebar-width: 280px;
  --sidebar-collapsed-width: 70px;
  --header-height: 65px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius-sm: 6px;
  --border-radius-md: 10px;
  --border-radius-lg: 14px;
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', system-ui, sans-serif;
}

/* ========== TEMA OSCURO ========== */
[data-theme="dark"] {
  --bg-primary: #0a0e14;
  --bg-secondary: #11161d;
  --bg-tertiary: #1a1f2a;
  --bg-card: #151b23;
  --bg-hover: #1e2633;
  --bg-active: #252d3a;
  --border-color: #252b35;
  --border-light: #2a303c;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #5c6570;
  --accent-primary: #25d366;
  --accent-primary-hover: #1fa855;
  --accent-secondary: #58a6ff;
  --accent-danger: #f85149;
  --accent-warning: #d29922;
  --accent-info: #39d2c0;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --overlay: rgba(0,0,0,0.6);
  
  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, #25d366 0%, #1fa855 100%);
  --gradient-sidebar: linear-gradient(180deg, #0d1117 0%, #161b22 100%);
  --gradient-header: linear-gradient(180deg, #161b22 0%, #0d1117 100%);
  --gradient-card: linear-gradient(135deg, #151b23 0%, #1a1f2a 100%);
  
  /* Estados */
  --success-bg: rgba(37,211,102,0.15);
  --success-text: #25d366;
  --danger-bg: rgba(248,81,73,0.15);
  --danger-text: #f85149;
  --warning-bg: rgba(210,153,34,0.15);
  --warning-text: #d29922;
  --info-bg: rgba(88,166,255,0.15);
  --info-text: #58a6ff;
}

/* ========== TEMA CLARO ========== */
[data-theme="light"] {
  --bg-primary: #f6f8fa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f2f5;
  --bg-card: #ffffff;
  --bg-hover: #f3f4f6;
  --bg-active: #e5e7eb;
  --border-color: #d0d7de;
  --border-light: #e1e4e8;
  --text-primary: #1f2328;
  --text-secondary: #656d76;
  --text-muted: #8c959f;
  --accent-primary: #1a7f37;
  --accent-primary-hover: #116329;
  --accent-secondary: #0969da;
  --accent-danger: #cf222e;
  --accent-warning: #9a6700;
  --accent-info: #1b7c83;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
  --overlay: rgba(0,0,0,0.3);
  
  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, #1a7f37 0%, #116329 100%);
  --gradient-sidebar: linear-gradient(180deg, #f6f8fa 0%, #ffffff 100%);
  --gradient-header: linear-gradient(180deg, #ffffff 0%, #f6f8fa 100%);
  --gradient-card: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  
  /* Estados */
  --success-bg: rgba(26,127,55,0.1);
  --success-text: #1a7f37;
  --danger-bg: rgba(207,34,46,0.1);
  --danger-text: #cf222e;
  --warning-bg: rgba(154,103,0,0.1);
  --warning-text: #9a6700;
  --info-bg: rgba(9,105,218,0.1);
  --info-text: #0969da;
}