/* Tacton Tools Portal - Branded Design System */

/* =================================
   Tacton Design Tokens
   ================================= */

:root {
    /* Brand Colors - Teal (Primary) */
    --tacton-brand-teal-50: oklch(0.970 0.094 178.8);
    --tacton-brand-teal-100: oklch(0.940 0.095 178.8);
    --tacton-brand-teal-200: oklch(0.880 0.097 178.8);
    --tacton-brand-teal-300: oklch(0.800 0.100 178.8);
    --tacton-brand-teal-400: oklch(0.720 0.165 178.8);
    --tacton-brand-teal-500: oklch(0.640 0.161 178.8);
    --tacton-brand-teal-600: oklch(0.560 0.156 178.8);
    --tacton-brand-teal-700: oklch(0.450 0.150 178.8);
    --tacton-brand-teal-800: oklch(0.360 0.145 178.8);
    --tacton-brand-teal-900: oklch(0.280 0.141 178.8);

    /* Brand Colors - Sapphire (Secondary) */
    --tacton-brand-sapphire-50: oklch(0.970 0.145 274.7);
    --tacton-brand-sapphire-100: oklch(0.940 0.147 274.7);
    --tacton-brand-sapphire-200: oklch(0.880 0.150 274.7);
    --tacton-brand-sapphire-300: oklch(0.800 0.155 274.7);
    --tacton-brand-sapphire-400: oklch(0.720 0.159 274.7);
    --tacton-brand-sapphire-500: oklch(0.640 0.164 274.7);
    --tacton-brand-sapphire-600: oklch(0.560 0.168 274.7);
    --tacton-brand-sapphire-700: oklch(0.450 0.276 274.7);
    --tacton-brand-sapphire-800: oklch(0.360 0.268 274.7);
    --tacton-brand-sapphire-900: oklch(0.280 0.260 274.7);

    /* Neutral Colors */
    --tacton-neutral-0: oklch(100% 0 0);
    --tacton-neutral-50: oklch(97.78% 0.002 240);
    --tacton-neutral-100: oklch(94.84% 0.005 240);
    --tacton-neutral-200: oklch(87.12% 0.011 240);
    --tacton-neutral-300: oklch(79.75% 0.017 240);
    --tacton-neutral-400: oklch(72.05% 0.026 240);
    --tacton-neutral-500: oklch(63.46% 0.034 240);
    --tacton-neutral-600: oklch(54.87% 0.039 240);
    --tacton-neutral-700: oklch(48.64% 0.033 240);
    --tacton-neutral-800: oklch(41.60% 0.027 240);
    --tacton-neutral-900: oklch(34.04% 0.021 240);
    --tacton-neutral-950: oklch(23.78% 0.015 240);

    /* Success Colors */
    --tacton-success-400: oklch(68% 0.18 154);
    --tacton-success-600: oklch(53% 0.22 154);

    /* Typography */
    --tacton-font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    --tacton-font-family-headings: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    --tacton-font-weight-regular: 400;
    --tacton-font-weight-medium: 500;
    --tacton-font-weight-semibold: 600;
    --tacton-font-weight-bold: 700;

    /* Spacing Scale */
    --tacton-spacing-xs: 0.5rem;
    --tacton-spacing-sm: 0.75rem;
    --tacton-spacing-md: 1rem;
    --tacton-spacing-lg: 1.5rem;
    --tacton-spacing-xl: 2rem;
    --tacton-spacing-2xl: 3rem;

    /* Border Radius */
    --tacton-radius-sm: 0.25rem;
    --tacton-radius-md: 0.5rem;
    --tacton-radius-lg: 0.75rem;
    --tacton-radius-pill: 9999px;

    /* Shadows */
    --tacton-shadow-sm: 0px 1px 2px 0px oklch(21.78% 0 0 / 15%);
    --tacton-shadow-md: 0px 4px 8px -1px oklch(21.78% 0 0 / 20%);
    --tacton-shadow-lg: 0px 8px 16px -3px oklch(21.78% 0 0 / 20%);

    /* Transitions */
    --tacton-transition-quick: 0.15s ease;
    --tacton-transition-medium: 0.2s ease;
    --tacton-transition-slow: 0.4s ease;
}

/* =================================
   Global Reset
   ================================= */

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

/* =================================
   Base Styles
   ================================= */

body {
    font-family: var(--tacton-font-family-base);
    line-height: 1.6;
    color: var(--tacton-neutral-900);
    background-color: var(--tacton-neutral-50);
    display: flex;
    flex-direction: column;
    gap: var(--tacton-spacing-2xl);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* =================================
   Header
   ================================= */

header {
    background: var(--tacton-brand-sapphire-900);
    color: var(--tacton-brand-sapphire-50);
    padding: var(--tacton-spacing-lg) 0;
}

header .container {
    display: flex;
    align-items: center;
    gap: var(--tacton-spacing-md);
}

.logo {
    height: 2.5rem;
    width: auto;
}

header h1 {
    color: var(--tacton-brand-sapphire-50);
    font-weight: var(--tacton-font-weight-bold);
}

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

h1 {
    font-family: var(--tacton-font-family-headings);
    font-size: 2.5rem;
    margin: 0;
    color: var(--tacton-neutral-900);
    font-weight: var(--tacton-font-weight-bold);
    letter-spacing: -0.02em;
}

h2 {
    font-family: var(--tacton-font-family-headings);
    color: var(--tacton-neutral-900);
    margin: 0;
    font-size: 1.5rem;
    font-weight: var(--tacton-font-weight-semibold);
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--tacton-spacing-sm);
}

/* =================================
   Links
   ================================= */

a {
    color: var(--tacton-brand-sapphire-700);
    text-decoration: none;
    transition: color var(--tacton-transition-quick);
}

a:hover {
    color: var(--tacton-brand-sapphire-800);
    text-decoration: underline;
}

.back-link {
    color: var(--tacton-brand-sapphire-700);
    text-decoration: none;
    display: inline-block;
    font-weight: var(--tacton-font-weight-medium);
    transition: color var(--tacton-transition-quick);
}

.back-link:hover {
    color: var(--tacton-brand-sapphire-800);
    text-decoration: none;
}

/* =================================
   Tools Grid (Homepage)
   ================================= */

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--tacton-spacing-xl);
}

.tool-card {
    background: var(--tacton-neutral-0);
    border-radius: var(--tacton-radius-lg);
    padding: var(--tacton-spacing-xl);
    border: 1px solid var(--tacton-neutral-200);
    transition: border-color var(--tacton-transition-medium);
    display: flex;
    flex-direction: column;
    gap: var(--tacton-spacing-md);
}

.tool-card:hover {
    border-color: var(--tacton-brand-sapphire-400);
}

.tool-card h2 {
    color: var(--tacton-neutral-900);
    font-size: 1.5rem;
}

.tool-card p {
    color: var(--tacton-neutral-600);
    line-height: 1.6;
}

/* =================================
   Buttons
   ================================= */

.links {
    display: flex;
    gap: var(--tacton-spacing-md);
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: var(--tacton-spacing-sm) var(--tacton-spacing-lg);
    text-decoration: none;
    border-radius: var(--tacton-radius-md);
    font-weight: var(--tacton-font-weight-medium);
    transition: all var(--tacton-transition-quick);
    border: 1px solid transparent;
    font-size: 0.9375rem;
}

.btn-primary {
    background-color: var(--tacton-brand-sapphire-700);
    color: var(--tacton-neutral-0);
    border-color: var(--tacton-brand-sapphire-700);
}

.btn-primary:hover {
    background-color: var(--tacton-brand-sapphire-800);
    border-color: var(--tacton-brand-sapphire-800);
    color: var(--tacton-brand-sapphire-50);
    text-decoration: none;
}

.btn-secondary {
    background-color: var(--tacton-neutral-0);
    color: var(--tacton-neutral-900);
    border-color: var(--tacton-neutral-300);
}

.btn-secondary:hover {
    background-color: var(--tacton-neutral-100);
    border-color: var(--tacton-neutral-400);
    text-decoration: none;
}

/* =================================
   Badges
   ================================= */

.version-badge {
    display: inline-block;
    background-color: var(--tacton-brand-sapphire-700);
    color: var(--tacton-neutral-0);
    padding: calc(var(--tacton-spacing-xs) / 2) var(--tacton-spacing-sm);
    border-radius: var(--tacton-radius-pill);
    font-size: 0.8125rem;
    font-weight: var(--tacton-font-weight-medium);
    align-self: flex-start;
}

.latest-badge {
    display: inline-block;
    background: var(--tacton-brand-sapphire-700);
    color: var(--tacton-neutral-0);
    padding: calc(var(--tacton-spacing-xs) / 2) var(--tacton-spacing-sm);
    border-radius: var(--tacton-radius-pill);
    font-size: 0.8125rem;
    font-weight: var(--tacton-font-weight-medium);
}

/* =================================
   Release Pages
   ================================= */

body.release-page {
    margin: var(--tacton-spacing-xl) 0;
    padding: 0;
    background-color: var(--tacton-neutral-50);
    gap: var(--tacton-spacing-lg);
}

body.release-page .container {
    max-width: 800px;
    padding: 0 var(--tacton-spacing-xl);
}

body.release-page h1 {
    font-size: 2rem;
}

.release-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--tacton-spacing-md);
}

.release-item {
    display: flex;
    flex-direction: column;
    gap: var(--tacton-spacing-sm);
    background: var(--tacton-neutral-0);
    padding: var(--tacton-spacing-lg);
    border-radius: var(--tacton-radius-md);
    border: 1px solid var(--tacton-neutral-200);
    transition: border-color var(--tacton-transition-medium);
}

.release-item:hover {
    border-color: var(--tacton-brand-sapphire-400);
}

.release-item h2 {
    color: var(--tacton-neutral-900);
    font-size: 1.25rem;
}


.release-item .links {
    display: flex;
    gap: var(--tacton-spacing-md);
    flex-wrap: wrap;
}

.date {
    color: var(--tacton-neutral-600);
    font-size: 0.875rem;
    font-weight: var(--tacton-font-weight-regular);
}

/* =================================
   Footer
   ================================= */

footer {
    text-align: center;
    color: var(--tacton-neutral-600);
    padding: var(--tacton-spacing-xl) 0;
    border-top: 1px solid var(--tacton-neutral-200);
}