@import "tailwindcss" source(none);
@source "../src";
@import "tw-animate-css";

@custom-variant dark (&:is(.dark *));

/*
 * STUDY UNIQUE — Design System
 * Dark-by-default premium SaaS palette.
 * Primary #6366F1 (indigo) • Accent #8B5CF6 (violet) • Secondary #06B6D4 (cyan)
 */

@theme inline {
  --radius-sm: calc(var(--radius) - 4px);
  --radius-md: calc(var(--radius) - 2px);
  --radius-lg: var(--radius);
  --radius-xl: calc(var(--radius) + 4px);
  --radius-2xl: calc(var(--radius) + 8px);

  --color-background: var(--background);
  --color-foreground: var(--foreground);
  --color-card: var(--card);
  --color-card-foreground: var(--card-foreground);
  --color-popover: var(--popover);
  --color-popover-foreground: var(--popover-foreground);
  --color-primary: var(--primary);
  --color-primary-foreground: var(--primary-foreground);
  --color-secondary: var(--secondary);
  --color-secondary-foreground: var(--secondary-foreground);
  --color-muted: var(--muted);
  --color-muted-foreground: var(--muted-foreground);
  --color-accent: var(--accent);
  --color-accent-foreground: var(--accent-foreground);
  --color-destructive: var(--destructive);
  --color-destructive-foreground: var(--destructive-foreground);
  --color-success: var(--success);
  --color-success-foreground: var(--success-foreground);
  --color-warning: var(--warning);
  --color-warning-foreground: var(--warning-foreground);
  --color-border: var(--border);
  --color-input: var(--input);
  --color-ring: var(--ring);
  --color-chart-1: var(--chart-1);
  --color-chart-2: var(--chart-2);
  --color-chart-3: var(--chart-3);
  --color-chart-4: var(--chart-4);
  --color-chart-5: var(--chart-5);
  --color-sidebar: var(--sidebar);
  --color-sidebar-foreground: var(--sidebar-foreground);
  --color-sidebar-primary: var(--sidebar-primary);
  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
  --color-sidebar-accent: var(--sidebar-accent);
  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
  --color-sidebar-border: var(--sidebar-border);
  --color-sidebar-ring: var(--sidebar-ring);

  --font-display: "Inter", ui-sans-serif, system-ui, sans-serif;
}

:root {
  --radius: 0.75rem;

  /* Light mode (still defined for completeness — app is dark by default) */
  --background: oklch(0.99 0.002 264);
  --foreground: oklch(0.18 0.02 264);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.18 0.02 264);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.18 0.02 264);
  --primary: oklch(0.58 0.22 277);
  --primary-foreground: oklch(0.99 0 0);
  --secondary: oklch(0.72 0.13 210);
  --secondary-foreground: oklch(0.15 0 0);
  --muted: oklch(0.96 0.005 264);
  --muted-foreground: oklch(0.46 0.02 264);
  --accent: oklch(0.62 0.22 295);
  --accent-foreground: oklch(0.99 0 0);
  --destructive: oklch(0.6 0.24 27);
  --destructive-foreground: oklch(0.99 0 0);
  --success: oklch(0.7 0.17 155);
  --success-foreground: oklch(0.1 0 0);
  --warning: oklch(0.78 0.16 75);
  --warning-foreground: oklch(0.15 0 0);
  --border: oklch(0.92 0.005 264);
  --input: oklch(0.92 0.005 264);
  --ring: oklch(0.58 0.22 277);

  --chart-1: oklch(0.58 0.22 277);
  --chart-2: oklch(0.62 0.22 295);
  --chart-3: oklch(0.7 0.15 210);
  --chart-4: oklch(0.75 0.16 75);
  --chart-5: oklch(0.7 0.17 155);

  --sidebar: oklch(0.98 0.003 264);
  --sidebar-foreground: oklch(0.2 0.02 264);
  --sidebar-primary: oklch(0.58 0.22 277);
  --sidebar-primary-foreground: oklch(0.99 0 0);
  --sidebar-accent: oklch(0.95 0.005 264);
  --sidebar-accent-foreground: oklch(0.2 0.02 264);
  --sidebar-border: oklch(0.92 0.005 264);
  --sidebar-ring: oklch(0.58 0.22 277);
}

.dark {
  /* #09090B */
  --background: oklch(0.145 0.004 285);
  --foreground: oklch(0.97 0.003 285);

  --card: oklch(0.185 0.005 285);
  --card-foreground: oklch(0.97 0.003 285);
  --popover: oklch(0.19 0.006 285);
  --popover-foreground: oklch(0.97 0.003 285);

  /* #6366F1 indigo */
  --primary: oklch(0.62 0.21 277);
  --primary-foreground: oklch(0.99 0 0);

  /* #06B6D4 cyan */
  --secondary: oklch(0.74 0.14 210);
  --secondary-foreground: oklch(0.12 0.01 285);

  --muted: oklch(0.23 0.006 285);
  --muted-foreground: oklch(0.68 0.012 285);

  /* #8B5CF6 violet */
  --accent: oklch(0.66 0.21 295);
  --accent-foreground: oklch(0.99 0 0);

  --destructive: oklch(0.65 0.24 27);
  --destructive-foreground: oklch(0.99 0 0);
  --success: oklch(0.72 0.17 155);
  --success-foreground: oklch(0.1 0 0);
  --warning: oklch(0.8 0.16 75);
  --warning-foreground: oklch(0.15 0 0);

  --border: oklch(1 0 0 / 8%);
  --input: oklch(1 0 0 / 10%);
  --ring: oklch(0.62 0.21 277);

  --chart-1: oklch(0.62 0.21 277);
  --chart-2: oklch(0.66 0.21 295);
  --chart-3: oklch(0.74 0.14 210);
  --chart-4: oklch(0.8 0.16 75);
  --chart-5: oklch(0.72 0.17 155);

  --sidebar: oklch(0.165 0.005 285);
  --sidebar-foreground: oklch(0.94 0.005 285);
  --sidebar-primary: oklch(0.62 0.21 277);
  --sidebar-primary-foreground: oklch(0.99 0 0);
  --sidebar-accent: oklch(0.22 0.006 285);
  --sidebar-accent-foreground: oklch(0.97 0.003 285);
  --sidebar-border: oklch(1 0 0 / 8%);
  --sidebar-ring: oklch(0.62 0.21 277);
}

@layer base {
  * {
    border-color: var(--color-border);
  }
  html, body {
    background-color: var(--color-background);
    color: var(--color-foreground);
    font-family: var(--font-display);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }
  ::selection {
    background-color: color-mix(in oklab, var(--color-primary) 35%, transparent);
    color: var(--color-foreground);
  }
}

@layer utilities {
  .gradient-text {
    background-image: linear-gradient(
      135deg,
      oklch(0.78 0.15 277),
      oklch(0.78 0.16 295),
      oklch(0.82 0.12 210)
    );
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .gradient-brand {
    background-image: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  }
  .gradient-mesh {
    background:
      radial-gradient(60% 60% at 20% 10%, color-mix(in oklab, var(--color-primary) 25%, transparent), transparent 70%),
      radial-gradient(50% 50% at 90% 20%, color-mix(in oklab, var(--color-accent) 22%, transparent), transparent 70%),
      radial-gradient(60% 60% at 50% 100%, color-mix(in oklab, var(--color-secondary) 18%, transparent), transparent 70%);
  }
  .glass {
    background: color-mix(in oklab, var(--color-card) 70%, transparent);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
  }
  .ring-focus:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--color-background), 0 0 0 4px var(--color-ring);
  }
  .scrollbar-thin {
    scrollbar-width: thin;
    scrollbar-color: color-mix(in oklab, var(--color-foreground) 15%, transparent) transparent;
  }
  .animate-shimmer {
    background: linear-gradient(
      90deg,
      transparent,
      color-mix(in oklab, var(--color-foreground) 8%, transparent),
      transparent
    );
    background-size: 200% 100%;
    animation: shimmer 1.6s linear infinite;
  }
  @keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
  }
  .blink-cursor::after {
    content: "▍";
    display: inline-block;
    margin-left: 2px;
    animation: blink 1s steps(2) infinite;
    color: var(--color-primary);
  }
  @keyframes blink {
    50% { opacity: 0; }
  }
}