/* ==========================================================================
   DIRA DESIGN SYSTEM  ("Deep Blue")
   Single source of truth for the redesign. Values come from DESIGN.md.

   Contents
   1. Tokens (color, type, spacing, radius, elevation, motion)
   2. Page base (.dira-page) and atmosphere
   3. Typography utilities
   4. Layout: container, 12 / 6 / 1 column grid, sections
   5. Surfaces and cards
   6. Buttons
   7. Badges
   8. Forms (.dira-form, .dira-field)
   9. Metrics
   10. Motion utilities and reduced motion

   Class prefix is "dira-" so nothing collides with legacy page CSS.
   Legacy pages keep working untouched until they are redesigned.

   Breakpoints (media queries cannot read custom properties):
     mobile  < 640px
     tablet  640px to 1024px
     desktop > 1024px
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. TOKENS
   -------------------------------------------------------------------------- */
:root {
    /* Brand */
    --dira-primary: #0F3B5A;
    --dira-primary-deep: #071A2F;
    --dira-secondary: #164D75;
    --dira-secondary-deep: #123D60;
    --dira-accent-violet: #2673A6;

    /* Contrast and text */
    --dira-midnight: #071A2F;
    --dira-ink: #102A43;
    --dira-muted: #526477;
    --dira-outline: #718096;
    --dira-outline-variant: #CBD5E1;
    --dira-placeholder: #8493A5;

    /* Surfaces */
    --dira-canvas: #FBFDFF;
    --dira-white: #FFFFFF;
    --dira-lavender: #EAF2F8;
    --dira-surface-low: #F4F8FB;
    --dira-surface: #EAF2F8;
    --dira-surface-high: #DFEBF3;
    --dira-surface-highest: #D5E4EF;
    --dira-field: #F4F8FB;

    /* On dark (midnight) surfaces */
    --dira-on-dark: #EAF2F8;
    --dira-on-dark-muted: rgba(234, 242, 248, 0.72);
    --dira-on-dark-faint: rgba(234, 242, 248, 0.55);
    --dira-inverse-primary: #A6D5F2;

    /* Semantic (only for real error states) */
    --dira-error: #BA1A1A;
    --dira-error-container: #FFDAD6;

    /* Gradients */
    --dira-gradient: linear-gradient(135deg, #0F3B5A 0%, #2673A6 100%);
    --dira-gradient-button: linear-gradient(135deg, #0F3B5A 0%, #164D75 100%);

    /* Borders */
    --dira-border: rgba(15, 59, 90, 0.08);
    --dira-border-field: rgba(15, 59, 90, 0.12);
    --dira-border-strong: rgba(15, 59, 90, 0.20);
    --dira-border-on-dark: rgba(166, 213, 242, 0.18);

    /* Typography */
    --dira-font: 'Plus Jakarta Sans', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

    /* Spacing */
    --dira-space-xs: 0.25rem;
    --dira-space-sm: 0.5rem;
    --dira-space-md: 1rem;
    --dira-space-lg: 1.5rem;
    --dira-space-xl: 2.5rem;
    --dira-section-y: 2.5rem;
    --dira-gutter: 0.75rem;
    --dira-margin: 1.25rem;
    --dira-container-max: 1200px;

    /* Radius */
    --dira-radius-sm: 0.5rem;
    --dira-radius: 1rem;
    --dira-radius-input: 0.875rem;
    --dira-radius-md: 1.5rem;
    --dira-radius-lg: 2rem;
    --dira-radius-xl: 3rem;
    --dira-radius-full: 9999px;

    /* Elevation */
    --dira-shadow-1: 0 4px 20px -2px rgba(15, 59, 90, 0.06), 0 2px 6px rgba(0, 0, 0, 0.02);
    --dira-shadow-2: 0 12px 32px -4px rgba(16, 42, 67, 0.08), 0 4px 12px rgba(15, 59, 90, 0.08);
    --dira-shadow-3: 0 20px 40px -8px rgba(15, 59, 90, 0.22);
    --dira-glow-button: 0 8px 20px rgba(15, 59, 90, 0.35);

    /* Control heights */
    --dira-control-h: 48px;
    --dira-header-h: 72px;

    /* Motion */
    --dira-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
    --dira-dur-fast: 160ms;
    --dira-dur: 240ms;
    --dira-dur-slow: 480ms;
    --dira-reveal-duration: 2200ms;
}

@media (min-width: 640px) {
    :root {
        --dira-gutter: 1rem;
        --dira-margin: 1.5rem;
    }
}

@media (min-width: 1025px) {
    :root {
        --dira-margin: 2rem;
        --dira-section-y: 5rem;
        --dira-control-h: 52px;
    }
}

/* --------------------------------------------------------------------------
   2. PAGE BASE AND ATMOSPHERE
   Opt in per page with <body class="dira-page">. Legacy pages are not
   affected until they add the class.
   -------------------------------------------------------------------------- */
body.dira-page {
    zoom: 1;
    font-family: var(--dira-font);
    font-size: 14px;
    line-height: 22px;
    color: var(--dira-ink);
    background-color: var(--dira-canvas);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

@media (min-width: 640px) {
    body.dira-page {
        font-size: 16px;
        line-height: 26px;
    }
}

/* Atmospheric bloom. Put on a section that needs the soft blue backdrop.
   Use sparingly: hero and one or two key moments, not every section. */
.dira-atmosphere {
    position: relative;
    isolation: isolate;
}

.dira-atmosphere::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(circle at 80% 20%, rgba(15, 59, 90, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 12% 88%, rgba(22, 77, 117, 0.08) 0%, transparent 45%);
}

/* Shared font for every design-system element */
[class*="dira-"] {
    font-family: var(--dira-font);
}

/* --------------------------------------------------------------------------
   3. TYPOGRAPHY UTILITIES
   Names mirror the DESIGN.md scale. Mobile sizes apply below 640px.
   -------------------------------------------------------------------------- */
.dira-display,
.dira-headline-lg,
.dira-headline-md,
.dira-headline-sm {
    margin: 0;
    color: var(--dira-ink);
    text-wrap: balance;
}

.dira-display {
    font-size: 30px;
    line-height: 38px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.dira-headline-lg {
    font-size: 24px;
    line-height: 32px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.dira-headline-md {
    font-size: 22px;
    line-height: 30px;
    font-weight: 700;
}

.dira-headline-sm {
    font-size: 18px;
    line-height: 26px;
    font-weight: 600;
}

@media (min-width: 640px) {
    .dira-display {
        font-size: 40px;
        line-height: 48px;
    }

    .dira-headline-lg {
        font-size: 32px;
        line-height: 40px;
    }
}

.dira-body-lg {
    font-size: 16px;
    line-height: 26px;
    font-weight: 400;
}

.dira-body-md {
    font-size: 14px;
    line-height: 22px;
    font-weight: 400;
}

.dira-body-sm {
    font-size: 12px;
    line-height: 18px;
    font-weight: 400;
}

.dira-label-lg {
    font-size: 14px;
    line-height: 20px;
    font-weight: 600;
}

.dira-label-md {
    font-size: 12px;
    line-height: 16px;
    font-weight: 600;
}

.dira-label-sm {
    font-size: 11px;
    line-height: 14px;
    font-weight: 700;
}

.dira-text-muted {
    color: var(--dira-muted);
}

.dira-text-primary {
    color: var(--dira-primary);
}

/* Two-tone headline accent: wrap the highlighted words in this class */
.dira-gradient-text {
    background: var(--dira-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* --------------------------------------------------------------------------
   4. LAYOUT
   Container caps content at 1200px with the design-system margins.
   Grid: 12 columns desktop, 6 tablet, 1 mobile.
   -------------------------------------------------------------------------- */
.dira-container {
    width: min(100% - (2 * var(--dira-margin)), var(--dira-container-max));
    margin-inline: auto;
}

.dira-section {
    padding-block: var(--dira-section-y);
}

.dira-section--tight {
    padding-block: var(--dira-space-xl);
}

.dira-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--dira-space-lg) var(--dira-gutter);
}

/* Children span the full row unless a column class says otherwise */
.dira-grid > * {
    grid-column: 1 / -1;
    min-width: 0;
}

@media (min-width: 640px) {
    .dira-grid {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }
}

@media (min-width: 1025px) {
    .dira-grid {
        grid-template-columns: repeat(12, minmax(0, 1fr));
    }
}

/* Column spans: .dira-tab-N for tablet (1 to 6), .dira-col-N for desktop (1 to 12) */
@media (min-width: 640px) and (max-width: 1024px) {
    .dira-tab-1 { grid-column: span 1; }
    .dira-tab-2 { grid-column: span 2; }
    .dira-tab-3 { grid-column: span 3; }
    .dira-tab-4 { grid-column: span 4; }
    .dira-tab-5 { grid-column: span 5; }
    .dira-tab-6 { grid-column: span 6; }
}

@media (min-width: 1025px) {
    .dira-col-1 { grid-column: span 1; }
    .dira-col-2 { grid-column: span 2; }
    .dira-col-3 { grid-column: span 3; }
    .dira-col-4 { grid-column: span 4; }
    .dira-col-5 { grid-column: span 5; }
    .dira-col-6 { grid-column: span 6; }
    .dira-col-7 { grid-column: span 7; }
    .dira-col-8 { grid-column: span 8; }
    .dira-col-9 { grid-column: span 9; }
    .dira-col-10 { grid-column: span 10; }
    .dira-col-11 { grid-column: span 11; }
    .dira-col-12 { grid-column: span 12; }
}

/* Stack helper: consistent vertical rhythm */
.dira-stack {
    display: flex;
    flex-direction: column;
    gap: var(--dira-space-md);
}

.dira-stack--lg {
    gap: var(--dira-space-lg);
}

/* Section header: eyebrow badge, title, lede. Left aligned by default. */
.dira-section-header {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--dira-space-md);
    max-width: 44rem;
    margin-bottom: var(--dira-space-xl);
}

.dira-section-header--center {
    align-items: center;
    text-align: center;
    margin-inline: auto;
}

.dira-section-header p {
    margin: 0;
    font-size: 16px;
    line-height: 26px;
    color: var(--dira-muted);
}

/* Dark contrast band for showcase rows, metrics, and closing moments */
.dira-dark {
    position: relative;
    isolation: isolate;
    background: var(--dira-midnight);
    color: var(--dira-on-dark);
}

.dira-dark .dira-display,
.dira-dark .dira-headline-lg,
.dira-dark .dira-headline-md,
.dira-dark .dira-headline-sm {
    color: #FFFFFF;
}

.dira-dark .dira-text-muted,
.dira-dark .dira-section-header p {
    color: var(--dira-on-dark-muted);
}

/* --------------------------------------------------------------------------
   5. SURFACES AND CARDS
   Level 0 canvas, Level 1 card, Level 2 floating and forms, Level 3 modal.
   Not everything should be a card. Use these where separation is needed.
   -------------------------------------------------------------------------- */
.dira-surface {
    background: var(--dira-white);
    border: 1px solid var(--dira-border);
    border-radius: var(--dira-radius-md);
    box-shadow: var(--dira-shadow-1);
}

.dira-surface--float {
    box-shadow: var(--dira-shadow-2);
    border-color: var(--dira-border-strong);
}

.dira-surface--modal {
    box-shadow: var(--dira-shadow-3);
    border-color: var(--dira-border-strong);
}

.dira-surface--tint {
    background: var(--dira-lavender);
    box-shadow: none;
}

.dira-card {
    background: var(--dira-white);
    border: 1px solid var(--dira-border);
    border-radius: var(--dira-radius-md);
    box-shadow: var(--dira-shadow-1);
    padding: var(--dira-space-lg);
    transition: transform var(--dira-dur) var(--dira-ease), box-shadow var(--dira-dur) var(--dira-ease), border-color var(--dira-dur) var(--dira-ease);
}

.dira-card--interactive:hover {
    transform: translateY(-3px);
    box-shadow: var(--dira-shadow-2);
    border-color: var(--dira-border-strong);
}

/* Rounded-square icon holder used inside feature and service cards */
.dira-icon-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--dira-radius);
    background: var(--dira-lavender);
    color: var(--dira-primary);
    flex-shrink: 0;
}

.dira-icon-badge svg {
    width: 24px;
    height: 24px;
}

/* Media frame for images: rounded, clipped, ready for hover movement */
.dira-media {
    overflow: hidden;
    border-radius: var(--dira-radius-md);
    background: var(--dira-lavender);
}

.dira-media img {
    display: block;
    width: 100%;
    height: 100%;
    max-width: 100%;
    object-fit: cover;
}

.dira-divider {
    height: 1px;
    border: 0;
    background: var(--dira-border-strong);
    margin: var(--dira-space-lg) 0;
}

/* --------------------------------------------------------------------------
   6. BUTTONS
   Presentation only. Works on <a> and <button>.
   -------------------------------------------------------------------------- */
.dira-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--dira-space-sm);
    min-height: var(--dira-control-h);
    padding: 0 1.5rem;
    border: 1px solid transparent;
    border-radius: var(--dira-radius-full);
    font-family: var(--dira-font);
    font-size: 14px;
    line-height: 20px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    transition: transform var(--dira-dur) var(--dira-ease), box-shadow var(--dira-dur) var(--dira-ease), filter var(--dira-dur) var(--dira-ease), background-color var(--dira-dur) var(--dira-ease), border-color var(--dira-dur) var(--dira-ease);
}

.dira-btn:focus-visible {
    outline: 2px solid var(--dira-primary);
    outline-offset: 3px;
}

.dira-btn:disabled,
.dira-btn[aria-disabled="true"] {
    opacity: 0.55;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.dira-btn--primary {
    background: var(--dira-gradient-button);
    color: #FFFFFF;
}

.dira-btn--primary:hover:not(:disabled) {
    filter: brightness(1.07);
    transform: translateY(-1px);
    box-shadow: var(--dira-glow-button);
}

.dira-btn--secondary {
    background: var(--dira-lavender);
    color: var(--dira-primary);
    border-color: var(--dira-border-strong);
}

.dira-btn--secondary:hover:not(:disabled) {
    background: var(--dira-surface-high);
    transform: translateY(-1px);
}

/* For buttons that sit on midnight surfaces */
.dira-btn--on-dark {
    background: rgba(255, 255, 255, 0.08);
    color: #FFFFFF;
    border-color: var(--dira-border-on-dark);
}

.dira-btn--on-dark:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.14);
    transform: translateY(-1px);
}

.dira-btn--on-dark:focus-visible {
    outline-color: var(--dira-inverse-primary);
}

/* Optional trailing arrow, as specified for primary CTAs */
.dira-btn--arrow::after {
    content: '\2197';
    font-size: 1.05em;
    line-height: 1;
    transition: transform var(--dira-dur) var(--dira-ease);
}

.dira-btn--arrow:hover::after {
    transform: translate(2px, -2px);
}

.dira-btn--sm {
    min-height: 40px;
    padding: 0 1.125rem;
    font-size: 13px;
}

.dira-btn--block {
    display: flex;
    width: 100%;
}

/* --------------------------------------------------------------------------
   7. BADGES AND PILL CHIPS
   Categories, status, trust markers. Small UI only.
   -------------------------------------------------------------------------- */
.dira-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 6px 14px;
    border-radius: var(--dira-radius-full);
    background: #EAF2F8;
    background: rgba(15, 59, 90, 0.08);
    color: var(--dira-primary);
    font-size: 11px;
    line-height: 14px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    white-space: nowrap;
}

.dira-badge--dot::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--dira-primary);
    flex-shrink: 0;
}

.dira-badge--title-case {
    text-transform: none;
    letter-spacing: 0;
}

.dira-badge--on-dark {
    background: rgba(166, 213, 242, 0.12);
    color: var(--dira-inverse-primary);
}

.dira-badge--on-dark.dira-badge--dot::before {
    background: var(--dira-inverse-primary);
}

/* --------------------------------------------------------------------------
   8. FORMS
   Opt in by adding class "dira-form" to a form or wrapper. Existing
   markup (.form-group, label, input, select, textarea) is restyled
   without changing ids, names, or behavior. New markup can use .dira-field.
   -------------------------------------------------------------------------- */
.dira-form .form-group,
.dira-field {
    display: flex;
    flex-direction: column;
    gap: var(--dira-space-sm);
    margin-bottom: var(--dira-space-md);
}

.dira-form label,
.dira-field label {
    font-size: 14px;
    line-height: 20px;
    font-weight: 600;
    color: var(--dira-ink);
}

.dira-form input:not([type="checkbox"]):not([type="radio"]):not([type="file"]):not([type="submit"]):not([type="button"]),
.dira-form select,
.dira-form textarea,
.dira-input {
    width: 100%;
    min-height: var(--dira-control-h);
    padding: 0.75rem 1rem;
    background: var(--dira-field);
    border: 1px solid var(--dira-border-field);
    border-radius: var(--dira-radius-input);
    font-family: var(--dira-font);
    /* 16px prevents iOS from zooming into focused fields */
    font-size: 16px;
    line-height: 24px;
    color: var(--dira-ink);
    box-sizing: border-box;
    transition: border-color var(--dira-dur-fast) var(--dira-ease), background-color var(--dira-dur-fast) var(--dira-ease);
}

.dira-form textarea,
textarea.dira-input {
    min-height: 8rem;
    resize: vertical;
}

.dira-form input::placeholder,
.dira-form textarea::placeholder,
.dira-input::placeholder {
    color: var(--dira-placeholder);
    opacity: 1;
}

.dira-form input:not([type="checkbox"]):not([type="radio"]):focus,
.dira-form select:focus,
.dira-form textarea:focus,
.dira-input:focus {
    outline: 2px solid var(--dira-primary);
    outline-offset: 0;
    background: var(--dira-white);
    border-color: transparent;
}

.dira-form input[type="checkbox"],
.dira-form input[type="radio"] {
    accent-color: var(--dira-primary);
}

.dira-field--error .dira-input,
.dira-form [aria-invalid="true"] {
    border-color: var(--dira-error);
}

.dira-field__hint {
    font-size: 12px;
    line-height: 18px;
    color: var(--dira-muted);
}

.dira-field__error {
    font-size: 12px;
    line-height: 18px;
    color: var(--dira-error);
}

/* --------------------------------------------------------------------------
   9. METRICS
   Real DIRA figures only. Styling is the only thing defined here.
   -------------------------------------------------------------------------- */
.dira-metric {
    display: flex;
    flex-direction: column;
    gap: var(--dira-space-sm);
}

.dira-metric__value {
    font-size: 40px;
    line-height: 1;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--dira-primary);
}

.dira-metric__value--gradient {
    background: var(--dira-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.dira-metric__label {
    font-size: 12px;
    line-height: 16px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--dira-muted);
}

.dira-dark .dira-metric__value {
    color: var(--dira-inverse-primary);
}

.dira-dark .dira-metric__label {
    color: var(--dira-on-dark-muted);
}

@media (min-width: 1025px) {
    .dira-metric__value {
        font-size: 56px;
    }
}

/* --------------------------------------------------------------------------
   10. MOTION UTILITIES AND REDUCED MOTION
   Subtle reveal, hover lift, image movement. Nothing loops.
   -------------------------------------------------------------------------- */
.dira-hover-lift {
    transition: transform var(--dira-dur) var(--dira-ease), box-shadow var(--dira-dur) var(--dira-ease);
}

.dira-hover-lift:hover {
    transform: translateY(-3px);
    box-shadow: var(--dira-shadow-2);
}

.dira-media--zoom img {
    transition: transform var(--dira-dur-slow) var(--dira-ease);
}

.dira-media--zoom:hover img {
    transform: scale(1.035);
}

.dira-visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (prefers-reduced-motion: reduce) {
    [class*="dira-"],
    [class*="dira-"]::before,
    [class*="dira-"]::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }

    .dira-hover-lift:hover,
    .dira-card--interactive:hover,
    .dira-btn:hover,
    .dira-media--zoom:hover img {
        transform: none;
    }
}