/*
==========================================================================
OUTCOMEGRID PLATFORM DESIGN SYSTEM — VERSION 1.0
Evidence. Insight. Impact.
==========================================================================
Load this file before page-specific CSS.

Example:
<link rel="stylesheet" href="../assets/css/og-design-system.css">
<link rel="stylesheet" href="portal.css">
*/

/* -----------------------------------------------------------------------
   1. DESIGN TOKENS
   ----------------------------------------------------------------------- */

:root {
    /* Brand colours */
    --og-navy-950: #001f43;
    --og-navy-900: #002b5c;
    --og-blue-800: #003b80;
    --og-blue-700: #07549e;
    --og-blue-600: #176bb8;
    --og-blue-100: #dcecff;
    --og-blue-050: #eef6ff;

    --og-green-700: #378812;
    --og-green-600: #4caf1a;
    --og-green-500: #70d944;
    --og-green-200: #cceebf;
    --og-green-100: #e8f8e2;
    --og-green-050: #f4fbf1;

    /* Neutral colours */
    --og-ink-900: #142b44;
    --og-ink-800: #26384d;
    --og-ink-700: #40556b;
    --og-ink-600: #66778a;
    --og-ink-500: #7f8fa0;
    --og-line-300: #cad6e2;
    --og-line-200: #dce5ee;
    --og-line-100: #e8eef4;
    --og-surface-200: #edf3f8;
    --og-surface-100: #f5f8fb;
    --og-surface-050: #fafcfe;
    --og-white: #ffffff;

    /* Semantic colours */
    --og-success-700: #2f7910;
    --og-success-100: #eaf7e5;
    --og-warning-700: #795b0c;
    --og-warning-100: #fff7dc;
    --og-danger-700: #972626;
    --og-danger-100: #fff0f0;
    --og-info-700: #145b91;
    --og-info-100: #e9f4fc;

    /* Typography */
    --og-font-sans:
        Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --og-font-display:
        Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    --og-text-xs: .75rem;
    --og-text-sm: .875rem;
    --og-text-md: 1rem;
    --og-text-lg: 1.125rem;
    --og-text-xl: 1.25rem;
    --og-text-2xl: 1.5rem;
    --og-text-3xl: 2rem;
    --og-text-4xl: 2.75rem;
    --og-text-5xl: 3.75rem;
    --og-text-hero: clamp(3rem, 7vw, 6.5rem);

    --og-leading-tight: 1.05;
    --og-leading-normal: 1.55;
    --og-leading-relaxed: 1.75;

    /* Spacing: 4px base */
    --og-space-1: .25rem;
    --og-space-2: .5rem;
    --og-space-3: .75rem;
    --og-space-4: 1rem;
    --og-space-5: 1.25rem;
    --og-space-6: 1.5rem;
    --og-space-8: 2rem;
    --og-space-10: 2.5rem;
    --og-space-12: 3rem;
    --og-space-16: 4rem;
    --og-space-20: 5rem;
    --og-space-24: 6rem;

    /* Radius */
    --og-radius-sm: .5rem;
    --og-radius-md: .75rem;
    --og-radius-lg: 1rem;
    --og-radius-xl: 1.5rem;
    --og-radius-2xl: 2rem;
    --og-radius-pill: 999px;

    /* Shadows */
    --og-shadow-sm: 0 5px 14px rgba(0, 43, 92, .06);
    --og-shadow-md: 0 14px 36px rgba(0, 43, 92, .09);
    --og-shadow-lg: 0 28px 70px rgba(0, 25, 55, .18);
    --og-shadow-focus: 0 0 0 4px rgba(23, 107, 184, .16);

    /* Layout */
    --og-container: 1180px;
    --og-container-wide: 1320px;
    --og-header-height: 82px;

    /* Animation */
    --og-duration-fast: 150ms;
    --og-duration-normal: 240ms;
    --og-ease: cubic-bezier(.2, .75, .3, 1);
}

/* -----------------------------------------------------------------------
   2. RESET AND BASE
   ----------------------------------------------------------------------- */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    color: var(--og-ink-800);
    font-family: var(--og-font-sans);
    font-size: var(--og-text-md);
    line-height: var(--og-leading-normal);
    background: var(--og-surface-100);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img,
svg {
    display: block;
    max-width: 100%;
}

button,
input,
select,
textarea {
    font: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

a {
    color: var(--og-blue-800);
}

a:hover {
    color: var(--og-green-700);
}

:focus-visible {
    outline: 2px solid var(--og-blue-600);
    outline-offset: 3px;
}

/* -----------------------------------------------------------------------
   3. TYPOGRAPHY
   ----------------------------------------------------------------------- */

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    color: var(--og-navy-900);
    font-family: var(--og-font-display);
    line-height: var(--og-leading-tight);
    text-wrap: balance;
}

h1 {
    font-size: clamp(2.7rem, 6vw, 5.5rem);
    letter-spacing: -.045em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3.75rem);
    letter-spacing: -.035em;
}

h3 {
    font-size: clamp(1.2rem, 2vw, 1.55rem);
    letter-spacing: -.015em;
}

p {
    margin: 0 0 var(--og-space-4);
}

.og-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--og-space-2);
    color: var(--og-green-600);
    font-size: var(--og-text-xs);
    font-weight: 900;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.og-lead {
    color: var(--og-ink-600);
    font-size: var(--og-text-lg);
    line-height: var(--og-leading-relaxed);
}

.og-muted {
    color: var(--og-ink-600);
}

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

/* -----------------------------------------------------------------------
   4. LAYOUT
   ----------------------------------------------------------------------- */

.og-container {
    width: min(var(--og-container), calc(100% - 40px));
    margin-inline: auto;
}

.og-container-wide {
    width: min(var(--og-container-wide), calc(100% - 40px));
    margin-inline: auto;
}

.og-section {
    padding-block: var(--og-space-20);
}

.og-section-sm {
    padding-block: var(--og-space-12);
}

.og-grid {
    display: grid;
    gap: var(--og-space-6);
}

.og-grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.og-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.og-grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.og-stack {
    display: flex;
    flex-direction: column;
}

.og-cluster {
    display: flex;
    flex-wrap: wrap;
    gap: var(--og-space-3);
    align-items: center;
}

.og-surface {
    background: var(--og-white);
}

.og-surface-soft {
    background: var(--og-surface-100);
}

/* -----------------------------------------------------------------------
   5. BUTTONS
   ----------------------------------------------------------------------- */

.og-button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: var(--og-space-2);
    min-height: 48px;
    padding: .78rem 1.35rem;
    border: 1px solid transparent;
    border-radius: var(--og-radius-pill);
    font-weight: 900;
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    transition:
        transform var(--og-duration-fast) var(--og-ease),
        background var(--og-duration-fast) var(--og-ease),
        border-color var(--og-duration-fast) var(--og-ease),
        box-shadow var(--og-duration-fast) var(--og-ease);
}

.og-button:hover {
    transform: translateY(-1px);
    text-decoration: none;
}

.og-button:active {
    transform: translateY(0);
}

.og-button-primary {
    background: var(--og-green-600);
    color: var(--og-white);
}

.og-button-primary:hover {
    background: var(--og-green-700);
    color: var(--og-white);
    box-shadow: 0 10px 24px rgba(76, 175, 26, .22);
}

.og-button-secondary {
    background: var(--og-blue-800);
    color: var(--og-white);
}

.og-button-secondary:hover {
    background: var(--og-navy-900);
    color: var(--og-white);
}

.og-button-outline {
    border-color: var(--og-blue-800);
    background: transparent;
    color: var(--og-blue-800);
}

.og-button-outline:hover {
    background: var(--og-blue-800);
    color: var(--og-white);
}

.og-button-light {
    background: var(--og-white);
    color: var(--og-navy-900);
}

.og-button-ghost {
    background: transparent;
    color: inherit;
}

.og-button-sm {
    min-height: 40px;
    padding: .65rem 1rem;
    font-size: var(--og-text-sm);
}

.og-button-lg {
    min-height: 56px;
    padding: .95rem 1.7rem;
}

.og-button-block {
    width: 100%;
}

/* -----------------------------------------------------------------------
   6. BADGES AND STATUS
   ----------------------------------------------------------------------- */

.og-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--og-space-2);
    padding: .42rem .7rem;
    border-radius: var(--og-radius-pill);
    background: var(--og-blue-050);
    color: var(--og-blue-800);
    font-size: var(--og-text-xs);
    font-weight: 900;
}

.og-badge-success {
    background: var(--og-success-100);
    color: var(--og-success-700);
}

.og-badge-warning {
    background: var(--og-warning-100);
    color: var(--og-warning-700);
}

.og-badge-danger {
    background: var(--og-danger-100);
    color: var(--og-danger-700);
}

.og-status-dot::before {
    content: "";
    width: .5rem;
    height: .5rem;
    border-radius: 50%;
    background: currentColor;
}

/* -----------------------------------------------------------------------
   7. CARDS
   ----------------------------------------------------------------------- */

.og-card {
    padding: var(--og-space-6);
    border: 1px solid var(--og-line-200);
    border-radius: var(--og-radius-xl);
    background: var(--og-white);
    box-shadow: var(--og-shadow-sm);
}

.og-card-elevated {
    box-shadow: var(--og-shadow-md);
}

.og-card-interactive {
    transition:
        transform var(--og-duration-normal) var(--og-ease),
        box-shadow var(--og-duration-normal) var(--og-ease);
}

.og-card-interactive:hover {
    transform: translateY(-3px);
    box-shadow: var(--og-shadow-md);
}

.og-card-dark {
    border-color: rgba(255, 255, 255, .16);
    background: rgba(255, 255, 255, .10);
    color: rgba(255, 255, 255, .82);
    box-shadow: var(--og-shadow-lg);
    backdrop-filter: blur(12px);
}

.og-card-dark h2,
.og-card-dark h3,
.og-card-dark strong {
    color: var(--og-white);
}

.og-stat {
    padding: var(--og-space-5);
    border-radius: var(--og-radius-lg);
    background: var(--og-surface-100);
}

.og-stat strong {
    display: block;
    color: var(--og-blue-800);
    font-size: var(--og-text-3xl);
    line-height: 1;
}

.og-stat span {
    display: block;
    margin-top: var(--og-space-2);
    color: var(--og-ink-600);
    font-size: var(--og-text-sm);
}

/* -----------------------------------------------------------------------
   8. FORMS
   ----------------------------------------------------------------------- */

.og-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--og-space-5);
}

.og-field {
    display: block;
}

.og-field-full {
    grid-column: 1 / -1;
}

.og-label {
    display: block;
    margin-bottom: var(--og-space-2);
    color: var(--og-navy-900);
    font-size: var(--og-text-sm);
    font-weight: 900;
}

.og-input,
.og-select,
.og-textarea {
    width: 100%;
    border: 1px solid var(--og-line-300);
    border-radius: var(--og-radius-md);
    background: var(--og-surface-050);
    color: var(--og-ink-800);
    transition:
        border-color var(--og-duration-fast) var(--og-ease),
        box-shadow var(--og-duration-fast) var(--og-ease),
        background var(--og-duration-fast) var(--og-ease);
}

.og-input,
.og-select {
    height: 50px;
    padding: 0 var(--og-space-4);
}

.og-textarea {
    min-height: 140px;
    padding: var(--og-space-4);
    resize: vertical;
}

.og-input:focus,
.og-select:focus,
.og-textarea:focus {
    border-color: var(--og-blue-600);
    outline: none;
    background: var(--og-white);
    box-shadow: var(--og-shadow-focus);
}

.og-help {
    display: block;
    margin-top: var(--og-space-2);
    color: var(--og-ink-600);
    font-size: var(--og-text-xs);
}

.og-input-error {
    border-color: var(--og-danger-700);
}

/* -----------------------------------------------------------------------
   9. ALERTS
   ----------------------------------------------------------------------- */

.og-alert {
    padding: var(--og-space-4) var(--og-space-5);
    border: 1px solid var(--og-line-200);
    border-radius: var(--og-radius-lg);
    line-height: 1.6;
}

.og-alert-success {
    border-color: var(--og-green-200);
    background: var(--og-success-100);
    color: var(--og-success-700);
}

.og-alert-warning {
    background: var(--og-warning-100);
    color: var(--og-warning-700);
}

.og-alert-danger {
    background: var(--og-danger-100);
    color: var(--og-danger-700);
}

.og-alert-info {
    background: var(--og-info-100);
    color: var(--og-info-700);
}

/* -----------------------------------------------------------------------
   10. TABLES
   ----------------------------------------------------------------------- */

.og-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--og-line-200);
    border-radius: var(--og-radius-lg);
    background: var(--og-white);
}

.og-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 680px;
}

.og-table th,
.og-table td {
    padding: var(--og-space-4);
    border-bottom: 1px solid var(--og-line-100);
    text-align: left;
    vertical-align: middle;
}

.og-table th {
    color: var(--og-navy-900);
    background: var(--og-surface-100);
    font-size: var(--og-text-xs);
    font-weight: 900;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.og-table tr:last-child td {
    border-bottom: 0;
}

/* -----------------------------------------------------------------------
   11. NAVIGATION
   ----------------------------------------------------------------------- */

.og-topbar {
    border-bottom: 1px solid var(--og-line-100);
    background: rgba(255, 255, 255, .97);
}

.og-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: var(--og-header-height);
    gap: var(--og-space-6);
}

.og-brand {
    display: inline-flex;
    align-items: center;
    gap: var(--og-space-3);
    color: var(--og-navy-900);
    text-decoration: none;
}

.og-brand-mark {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: var(--og-radius-lg);
    background: linear-gradient(
        145deg,
        var(--og-navy-900),
        var(--og-blue-700)
    );
    color: var(--og-white);
    font-size: var(--og-text-sm);
    font-weight: 900;
}

.og-brand-copy strong,
.og-brand-copy small {
    display: block;
}

.og-brand-copy small {
    color: var(--og-ink-600);
    font-size: var(--og-text-xs);
}

.og-nav-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--og-space-6);
    align-items: center;
}

.og-nav-links a {
    color: var(--og-navy-900);
    font-size: var(--og-text-sm);
    font-weight: 800;
    text-decoration: none;
}

/* -----------------------------------------------------------------------
   12. HEROES
   ----------------------------------------------------------------------- */

.og-hero {
    position: relative;
    overflow: hidden;
    padding-block: clamp(4.5rem, 9vw, 7rem);
    color: var(--og-white);
    background:
        radial-gradient(
            circle at 84% 12%,
            rgba(76, 175, 26, .30),
            transparent 28%
        ),
        linear-gradient(
            135deg,
            var(--og-navy-900) 0%,
            var(--og-blue-800) 60%,
            #0a6172 100%
        );
}

.og-hero::after {
    content: "";
    position: absolute;
    right: -250px;
    bottom: -350px;
    width: 620px;
    height: 620px;
    border: 80px solid rgba(255, 255, 255, .06);
    border-radius: 50%;
}

.og-hero > * {
    position: relative;
    z-index: 2;
}

.og-hero h1,
.og-hero h2 {
    color: var(--og-white);
}

.og-hero-accent {
    color: var(--og-green-500);
}

/* -----------------------------------------------------------------------
   13. ICON / NUMBER TILES
   ----------------------------------------------------------------------- */

.og-number-tile {
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    width: 44px;
    height: 44px;
    border-radius: var(--og-radius-md);
    background: var(--og-green-100);
    color: var(--og-green-700);
    font-size: var(--og-text-xs);
    font-weight: 900;
}

/* -----------------------------------------------------------------------
   14. FOOTER
   ----------------------------------------------------------------------- */

.og-footer {
    padding-block: var(--og-space-8);
    background: var(--og-navy-900);
    color: rgba(255, 255, 255, .75);
}

.og-footer a,
.og-footer strong {
    color: var(--og-white);
}

.og-footer a {
    text-decoration: none;
}

/* -----------------------------------------------------------------------
   15. UTILITIES
   ----------------------------------------------------------------------- */

.og-hidden {
    display: none !important;
}

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

.og-mt-2 { margin-top: var(--og-space-2); }
.og-mt-4 { margin-top: var(--og-space-4); }
.og-mt-6 { margin-top: var(--og-space-6); }
.og-mt-8 { margin-top: var(--og-space-8); }
.og-mb-0 { margin-bottom: 0; }
.og-gap-4 { gap: var(--og-space-4); }
.og-gap-6 { gap: var(--og-space-6); }

/* -----------------------------------------------------------------------
   16. RESPONSIVE RULES
   ----------------------------------------------------------------------- */

@media (max-width: 900px) {
    .og-grid-4,
    .og-grid-3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .og-grid-2 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .og-container,
    .og-container-wide {
        width: min(100% - 28px, var(--og-container));
    }

    .og-section {
        padding-block: var(--og-space-16);
    }

    .og-grid-4,
    .og-grid-3,
    .og-form-grid {
        grid-template-columns: 1fr;
    }

    .og-field-full {
        grid-column: auto;
    }

    .og-nav-links {
        display: none;
    }
}

/* -----------------------------------------------------------------------
   17. REDUCED MOTION
   ----------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}