/**
 * Theme Name: IMTAS Corporate
 * Theme URI: https://imtas.com
 * Description: Professional standalone corporate theme for IMTAS - Federal IT Contractor. Designed for demo/testing.
 * Author: IMTAS
 * Author URI: https://imtas.com
 * Version: 1.2.0
 * Text Domain: imtas-corporate
 * License: GNU General Public License v2 or later
 * License URI: http://www.gnu.org/licenses/gpl-2.0.html
 */

/* ==========================================================================
   IMTAS DESIGN SYSTEM - Design Tokens
   Based on ui-ux-style-guide.md specifications
   ========================================================================== */

:root {
    /* ----------------------------------------
       IMTAS BRAND COLORS (Preserved)
       ---------------------------------------- */
    --imtas-primary: #1c2139;
    --imtas-secondary: #3f53a2;
    --imtas-black: #000000;
    --imtas-silver: #b0b1b7;

    /* Extended Brand Palette */
    --imtas-primary-light: #2a3154;
    --imtas-primary-dark: #12162a;
    --imtas-secondary-light: #5a6db8;
    --imtas-secondary-dark: #2f4080;
    --imtas-silver-light: #d4d5d9;
    --imtas-silver-dark: #8a8b90;

    /* ----------------------------------------
       COLOR PALETTE (Design System Neutrals)
       ---------------------------------------- */
    --palette-neutral-0: #FFFFFF;
    --palette-neutral-100: #F4F5F7;
    --palette-neutral-200: #EBECF0;
    --palette-neutral-300: #DFE1E6;
    --palette-neutral-400: #C1C7D0;
    --palette-neutral-500: #A5ADBA;
    --palette-neutral-600: #6B778C;
    --palette-neutral-700: #5E6C84;
    --palette-neutral-800: #42526E;
    --palette-neutral-900: #253858;
    --palette-neutral-1000: #172B4D;

    /* Semantic Colors - Success */
    --palette-green-100: #E3FCEF;
    --palette-green-500: #36B37E;
    --palette-green-700: #006644;

    /* Semantic Colors - Warning */
    --palette-yellow-100: #FFFAE6;
    --palette-yellow-500: #FFAB00;
    --palette-yellow-700: #FF8B00;

    /* Semantic Colors - Error */
    --palette-red-100: #FFEBE6;
    --palette-red-500: #FF5630;
    --palette-red-700: #BF2600;

    /* Semantic Colors - Info */
    --palette-teal-100: #E6FCFF;
    --palette-teal-500: #00B8D9;

    /* Legacy Neutral Mapping */
    --imtas-white: var(--palette-neutral-0);
    --imtas-gray-100: var(--palette-neutral-100);
    --imtas-gray-200: var(--palette-neutral-200);
    --imtas-gray-300: var(--palette-neutral-300);
    --imtas-gray-400: var(--palette-neutral-400);
    --imtas-gray-500: var(--palette-neutral-500);
    --imtas-gray-600: var(--palette-neutral-600);
    --imtas-gray-700: var(--palette-neutral-700);
    --imtas-gray-800: var(--palette-neutral-800);
    --imtas-gray-900: var(--palette-neutral-900);

    /* ----------------------------------------
       SEMANTIC COLORS
       ---------------------------------------- */
    --color-background-default: var(--palette-neutral-0);
    --color-background-surface: var(--palette-neutral-100);
    --color-background-surface-raised: var(--palette-neutral-0);
    --color-background-disabled: var(--palette-neutral-100);

    --color-background-success: var(--palette-green-100);
    --color-background-warning: var(--palette-yellow-100);
    --color-background-error: var(--palette-red-100);
    --color-background-info: var(--palette-teal-100);

    --color-text-default: var(--palette-neutral-1000);
    --color-text-subtle: var(--palette-neutral-600);
    --color-text-disabled: var(--palette-neutral-500);
    --color-text-inverse: var(--palette-neutral-0);

    --color-text-success: var(--palette-green-700);
    --color-text-warning: var(--palette-yellow-700);
    --color-text-error: var(--palette-red-700);

    --color-icon-success: var(--palette-green-500);
    --color-icon-warning: var(--palette-yellow-500);
    --color-icon-error: var(--palette-red-500);
    --color-icon-info: var(--palette-teal-500);

    --color-border-default: var(--palette-neutral-300);
    --color-border-bold: var(--palette-neutral-500);
    --color-border-focused: var(--imtas-secondary-light);
    --color-border-disabled: var(--palette-neutral-200);

    /* ----------------------------------------
       TYPOGRAPHY (Design System)
       ---------------------------------------- */
    --font-family-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-mono: "Fira Code", "SF Mono", Monaco, "Cascadia Code", Consolas, monospace;
    --font-family-brand: var(--font-family-sans);

    /* Legacy font mapping */
    --font-primary: var(--font-family-sans);
    --font-heading: var(--font-family-sans);

    /* Font Sizes (Design System Scale) */
    --font-size-050: 0.6875rem;  /* 11px */
    --font-size-075: 0.75rem;    /* 12px */
    --font-size-100: 0.875rem;   /* 14px */
    --font-size-200: 1rem;       /* 16px */
    --font-size-300: 1.25rem;    /* 20px */
    --font-size-400: 1.5rem;     /* 24px */
    --font-size-500: 1.75rem;    /* 28px */
    --font-size-600: 2rem;       /* 32px */
    --font-size-700: 2.25rem;    /* 36px */

    /* Font Weights */
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Line Heights */
    --line-height-100: 1;
    --line-height-200: 1.2;
    --line-height-300: 1.25;
    --line-height-400: 1.4;
    --line-height-500: 1.5;
    --line-height-600: 1.75;

    /* Letter Spacing */
    --letter-spacing-tight: -0.01em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.01em;
    --letter-spacing-wider: 0.02em;

    /* ----------------------------------------
       SPACING (8px Base Unit)
       ---------------------------------------- */
    --space-0: 0;
    --space-025: 0.125rem;  /* 2px */
    --space-050: 0.25rem;   /* 4px */
    --space-075: 0.375rem;  /* 6px */
    --space-100: 0.5rem;    /* 8px */
    --space-150: 0.75rem;   /* 12px */
    --space-200: 1rem;      /* 16px */
    --space-250: 1.25rem;   /* 20px */
    --space-300: 1.5rem;    /* 24px */
    --space-400: 2rem;      /* 32px */
    --space-500: 2.5rem;    /* 40px */
    --space-600: 3rem;      /* 48px */
    --space-800: 4rem;      /* 64px */
    --space-1000: 5rem;     /* 80px */

    /* Legacy spacing mapping */
    --section-padding: var(--space-1000);
    --section-padding-mobile: var(--space-600);
    --container-max: 1280px;
    --container-padding: var(--space-200);

    /* ----------------------------------------
       BORDER RADIUS (Design System)
       ---------------------------------------- */
    --border-radius-none: 0;
    --border-radius-050: 2px;
    --border-radius-100: 3px;
    --border-radius-200: 6px;
    --border-radius-300: 8px;
    --border-radius-400: 12px;
    --border-radius-500: 16px;
    --border-radius-full: 9999px;

    /* Legacy radius mapping */
    --radius-sm: var(--border-radius-100);
    --radius-md: var(--border-radius-200);
    --radius-lg: var(--border-radius-300);
    --radius-xl: var(--border-radius-400);

    /* ----------------------------------------
       ELEVATION (Shadows)
       ---------------------------------------- */
    --elevation-surface: none;
    --elevation-raised:
        0 1px 1px rgba(9, 30, 66, 0.25),
        0 0 1px rgba(9, 30, 66, 0.31);
    --elevation-overlay:
        0 4px 8px -2px rgba(9, 30, 66, 0.25),
        0 0 1px rgba(9, 30, 66, 0.31);
    --elevation-modal:
        0 8px 12px rgba(9, 30, 66, 0.15),
        0 0 1px rgba(9, 30, 66, 0.31);
    --elevation-navigation:
        0 2px 4px rgba(9, 30, 66, 0.08),
        0 0 1px rgba(9, 30, 66, 0.25);

    /* Legacy shadow mapping */
    --shadow-sm: var(--elevation-raised);
    --shadow-md: var(--elevation-overlay);
    --shadow-lg: var(--elevation-modal);
    --shadow-xl: 0 20px 40px rgba(9, 30, 66, 0.2);

    /* ----------------------------------------
       Z-INDEX SCALE
       ---------------------------------------- */
    --z-index-default: 0;
    --z-index-dropdown: 100;
    --z-index-sticky: 200;
    --z-index-fixed: 300;
    --z-index-modal-backdrop: 400;
    --z-index-modal: 500;
    --z-index-popover: 600;
    --z-index-toast: 700;

    /* ----------------------------------------
       TRANSITIONS (Design System)
       ---------------------------------------- */
    --transition-duration-fast: 100ms;
    --transition-duration-normal: 200ms;
    --transition-duration-slow: 300ms;
    --transition-timing-ease: ease;
    --transition-timing-ease-in-out: ease-in-out;

    /* Legacy transition mapping */
    --transition-fast: var(--transition-duration-fast) var(--transition-timing-ease);
    --transition-normal: var(--transition-duration-normal) var(--transition-timing-ease);
    --transition-slow: var(--transition-duration-slow) var(--transition-timing-ease);

    /* ----------------------------------------
       ICON SIZES
       ---------------------------------------- */
    --icon-size-small: 16px;
    --icon-size-medium: 20px;
    --icon-size-default: 24px;
    --icon-size-large: 32px;
    --icon-size-xlarge: 48px;

    /* ----------------------------------------
       OPACITY
       ---------------------------------------- */
    --opacity-disabled: 0.4;
    --opacity-loading: 0.7;

    /* ----------------------------------------
       BORDER WIDTH
       ---------------------------------------- */
    --border-width-0: 0;
    --border-width-1: 1px;
    --border-width-2: 2px;
    --border-width-3: 3px;
}

/* ==========================================================================
   RESET & GLOBAL STYLES
   ========================================================================== */

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

html {
    scroll-behavior: smooth;
    font-size: 16px; /* Base for rem calculations */
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-200);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-500);
    color: var(--color-text-default);
    background-color: var(--color-background-default);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body.nav-open {
    overflow: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

a {
    color: var(--imtas-secondary);
    text-decoration: none;
    transition: color var(--transition-duration-fast) var(--transition-timing-ease);
}

a:hover {
    color: var(--imtas-secondary-dark);
}

/* Focus Styles (WCAG 2.1 AA Compliant) */
:focus-visible {
    outline: var(--border-width-2) solid var(--color-border-focused);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Container */
.imtas-container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-200);
}

@media (min-width: 1024px) {
    .imtas-container {
        padding: 0 var(--space-600);
    }
}

/* ==========================================================================
   TYPOGRAPHY (Design System Type Scale)
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-sans);
    color: var(--imtas-primary);
    margin-bottom: var(--space-200);
}

h1 {
    font-size: clamp(var(--font-size-700), 5vw, 3.5rem);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-200);
    letter-spacing: var(--letter-spacing-tight);
}

h2 {
    font-size: clamp(var(--font-size-500), 4vw, var(--font-size-700));
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-300);
    letter-spacing: var(--letter-spacing-tight);
}

h3 {
    font-size: clamp(var(--font-size-400), 3vw, var(--font-size-500));
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-300);
}

h4 {
    font-size: clamp(var(--font-size-300), 2.5vw, var(--font-size-400));
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-400);
}

h5 {
    font-size: var(--font-size-200);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-400);
}

h6 {
    font-size: var(--font-size-100);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-400);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

p {
    margin-bottom: var(--space-200);
}

p:last-child {
    margin-bottom: 0;
}

.lead {
    font-size: var(--font-size-300);
    font-weight: var(--font-weight-regular);
    line-height: var(--line-height-500);
    color: var(--color-text-subtle);
}

/* Body text variants */
.text-body-large {
    font-size: var(--font-size-200);
    line-height: var(--line-height-500);
}

.text-body-medium {
    font-size: var(--font-size-100);
    line-height: var(--line-height-500);
}

.text-body-small {
    font-size: var(--font-size-075);
    line-height: var(--line-height-500);
}

/* Label style */
.text-label {
    font-size: var(--font-size-075);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-400);
    letter-spacing: var(--letter-spacing-wider);
    text-transform: uppercase;
}

/* ==========================================================================
   TOP BAR
   ========================================================================== */

.imtas-topbar {
    background: var(--imtas-primary);
    color: var(--color-text-inverse);
    font-size: var(--font-size-100);
    padding: var(--space-100) 0;
}

.imtas-topbar-inner {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--space-400);
}

.imtas-topbar a {
    color: var(--imtas-silver-light);
    transition: color var(--transition-duration-fast) var(--transition-timing-ease);
}

.imtas-topbar a:hover {
    color: var(--color-text-inverse);
}

.imtas-topbar-item {
    display: flex;
    align-items: center;
    gap: var(--space-100);
}

.imtas-topbar-item svg {
    width: var(--icon-size-small);
    height: var(--icon-size-small);
}

/* ==========================================================================
   HEADER & NAVIGATION
   ========================================================================== */

.imtas-header {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-index-fixed);
    background: var(--color-background-default);
    border-bottom: var(--border-width-1) solid var(--color-border-default);
    transition: border-color var(--transition-duration-normal) var(--transition-timing-ease);
}

.imtas-header.scrolled {
    border-color: var(--color-border-bold);
}

.imtas-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--space-1000);
    padding: 0 var(--space-250);
}

/* Logo */
.imtas-logo {
    display: flex;
    align-items: center;
    gap: var(--space-150);
    text-decoration: none;
}

.imtas-logo img {
    height: 45px;
    width: auto;
}

.imtas-logo-text {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-500);
    font-weight: var(--font-weight-bold);
    color: var(--imtas-primary);
    letter-spacing: var(--letter-spacing-tight);
}

.imtas-logo-text span {
    color: var(--imtas-secondary);
}

/* Main Navigation */
.imtas-nav {
    display: flex;
    align-items: center;
}

.imtas-nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-050);
}

.imtas-nav-item {
    position: relative;
}

.imtas-nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-050);
    padding: var(--space-100) var(--space-150);
    font-size: var(--font-size-100);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-default);
    transition: color var(--transition-duration-fast) var(--transition-timing-ease);
    border-radius: var(--border-radius-100);
}

.imtas-nav-link:hover {
    color: var(--imtas-secondary);
}

.imtas-nav-link.active {
    color: var(--imtas-secondary);
}

/* Dropdown Arrow */
.imtas-nav-link svg {
    width: var(--icon-size-small);
    height: var(--icon-size-small);
    transition: transform var(--transition-duration-fast) var(--transition-timing-ease);
}

.imtas-nav-item:hover .imtas-nav-link svg {
    transform: rotate(180deg);
}

/* Dropdown Menu - Atlassian style */
.imtas-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--color-background-surface-raised);
    border-radius: var(--border-radius-100);
    box-shadow: var(--elevation-overlay);
    opacity: 0;
    visibility: hidden;
    transform: translateY(var(--space-050));
    transition: opacity var(--transition-duration-fast) var(--transition-timing-ease),
                transform var(--transition-duration-fast) var(--transition-timing-ease),
                visibility var(--transition-duration-fast) var(--transition-timing-ease);
    padding: var(--space-100) 0;
    border: none;
    z-index: var(--z-index-dropdown);
}

.imtas-nav-item:hover .imtas-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.imtas-dropdown-link {
    display: block;
    padding: var(--space-100) var(--space-200);
    font-size: var(--font-size-100);
    color: var(--color-text-default);
    transition: background-color var(--transition-duration-fast) var(--transition-timing-ease);
}

.imtas-dropdown-link:hover {
    color: var(--color-text-default);
    background: var(--color-background-surface);
}

/* CTA Button in Nav */
.imtas-nav-cta {
    margin-left: var(--space-250);
}

/* Mobile Menu Toggle */
.imtas-mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-050);
    width: var(--space-500);
    height: var(--space-500);
    padding: var(--space-100);
    background: none;
    border: none;
    cursor: pointer;
    z-index: calc(var(--z-index-fixed) + 1);
}

.imtas-mobile-toggle span {
    width: 100%;
    height: var(--border-width-2);
    background: var(--imtas-primary);
    transition: all var(--transition-duration-fast) var(--transition-timing-ease);
    transform-origin: center;
}

.imtas-mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.imtas-mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.imtas-mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ==========================================================================
   BUTTONS (Atlassian-Style)
   ========================================================================== */

.imtas-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-100);
    padding: 0 var(--space-200);
    height: 32px;
    font-family: var(--font-family-sans);
    font-size: var(--font-size-100);
    font-weight: var(--font-weight-medium);
    /* Atlassian uses sentence case, not uppercase */
    text-transform: none;
    letter-spacing: normal;
    border-radius: var(--border-radius-100);
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-duration-fast) var(--transition-timing-ease),
                color var(--transition-duration-fast) var(--transition-timing-ease);
    text-decoration: none;
    white-space: nowrap;
}

.imtas-btn:disabled {
    opacity: var(--opacity-disabled);
    cursor: not-allowed;
}

.imtas-btn-primary {
    background: var(--imtas-secondary);
    color: var(--color-text-inverse);
}

.imtas-btn-primary:hover:not(:disabled) {
    background: var(--imtas-secondary-dark);
    color: var(--color-text-inverse);
}

.imtas-btn-primary:active:not(:disabled) {
    background: var(--imtas-primary);
}

.imtas-btn-secondary {
    background: rgba(63, 83, 162, 0.1);
    color: var(--imtas-secondary);
}

.imtas-btn-secondary:hover:not(:disabled) {
    background: rgba(63, 83, 162, 0.2);
    color: var(--imtas-secondary-dark);
}

.imtas-btn-secondary:active:not(:disabled) {
    background: rgba(63, 83, 162, 0.3);
}

/* Subtle/default button */
.imtas-btn-subtle {
    background: transparent;
    color: var(--color-text-subtle);
}

.imtas-btn-subtle:hover:not(:disabled) {
    background: var(--color-background-surface);
    color: var(--color-text-default);
}

.imtas-btn-white {
    background: var(--color-background-default);
    color: var(--imtas-primary);
}

.imtas-btn-white:hover:not(:disabled) {
    background: var(--palette-neutral-100);
    color: var(--imtas-primary);
}

.imtas-btn-outline-white {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-inverse);
}

.imtas-btn-outline-white:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-text-inverse);
}

.imtas-btn-sm {
    padding: 0 var(--space-150);
    height: 24px;
    font-size: var(--font-size-075);
}

.imtas-btn-lg {
    padding: 0 var(--space-300);
    height: 40px;
    font-size: var(--font-size-200);
}

/* ==========================================================================
   HERO SECTIONS
   ========================================================================== */

.imtas-hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    background: var(--imtas-primary);
    overflow: hidden;
}

.imtas-hero-home {
    min-height: 85vh;
}

.imtas-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.imtas-hero-bg img,
.imtas-hero-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.imtas-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(28, 33, 57, 0.88);
    z-index: 2;
}

.imtas-hero-content {
    position: relative;
    z-index: 3;
    max-width: 800px;
    padding: var(--space-800) 0;
}

.imtas-hero-subtitle {
    display: inline-block;
    font-size: var(--font-size-075);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255,255,255,0.6);
    margin-bottom: var(--space-200);
}

.imtas-hero-title {
    font-size: clamp(var(--font-size-700), 6vw, 4rem);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-inverse);
    line-height: var(--line-height-200);
    letter-spacing: var(--letter-spacing-tight);
    margin-bottom: var(--space-300);
}

.imtas-hero-title span {
    color: var(--imtas-silver-light);
}

.imtas-hero-description {
    font-size: var(--font-size-300);
    color: rgba(255,255,255,0.8);
    line-height: var(--line-height-600);
    margin-bottom: var(--space-500);
}

.imtas-hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-200);
}

/* Page Hero (smaller for inner pages) */
.imtas-page-hero {
    min-height: 350px;
}

.imtas-page-hero .imtas-hero-title {
    font-size: clamp(var(--font-size-600), 5vw, var(--font-size-700));
    margin-bottom: var(--space-200);
}

/* Breadcrumbs */
.imtas-breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--space-100);
    font-size: var(--font-size-100);
    color: rgba(255,255,255,0.6);
    margin-bottom: var(--space-250);
}

.imtas-breadcrumbs a {
    color: rgba(255,255,255,0.6);
    transition: color var(--transition-duration-fast) var(--transition-timing-ease);
}

.imtas-breadcrumbs a:hover {
    color: var(--color-text-inverse);
}

.imtas-breadcrumbs .separator {
    color: rgba(255,255,255,0.4);
}

.imtas-breadcrumbs .current {
    color: var(--color-text-inverse);
}

/* ==========================================================================
   SECTIONS
   ========================================================================== */

.imtas-section {
    padding: var(--space-1000) 0;
}

.imtas-section-sm {
    padding: var(--space-600) 0;
}

.imtas-section-lg {
    padding: calc(var(--space-1000) * 1.5) 0;
}

.imtas-section-dark {
    background: var(--imtas-primary);
    color: var(--color-text-inverse);
}

.imtas-section-dark h2,
.imtas-section-dark h3,
.imtas-section-dark h4 {
    color: var(--color-text-inverse);
}

.imtas-section-dark p {
    color: rgba(255,255,255,0.8);
}

.imtas-section-gray {
    background: var(--color-background-surface);
}

.imtas-section-gradient {
    background: var(--imtas-secondary);
    color: var(--color-text-inverse);
}

/* Section Headers - Atlassian-style clean */
.imtas-section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--space-600);
}

.imtas-section-label {
    display: inline-block;
    font-size: var(--font-size-075);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--imtas-secondary);
    margin-bottom: var(--space-100);
}

.imtas-section-dark .imtas-section-label {
    color: rgba(255,255,255,0.6);
}

.imtas-section-title {
    margin-bottom: var(--space-200);
    font-weight: var(--font-weight-semibold);
}

.imtas-section-description {
    font-size: var(--font-size-200);
    color: var(--color-text-subtle);
    line-height: var(--line-height-500);
}

.imtas-section-dark .imtas-section-description {
    color: rgba(255,255,255,0.7);
}

/* ==========================================================================
   CARDS (Atlassian-Style - Flat & Clean)
   ========================================================================== */

.imtas-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-300);
}

.imtas-cards-2 {
    grid-template-columns: repeat(2, 1fr);
}

.imtas-cards-3 {
    grid-template-columns: repeat(3, 1fr);
}

.imtas-cards-4 {
    grid-template-columns: repeat(4, 1fr);
}

.imtas-card {
    background: var(--color-background-surface-raised);
    border-radius: var(--border-radius-100);
    padding: var(--space-300);
    box-shadow: none;
    border: var(--border-width-1) solid var(--color-border-default);
    transition: background-color var(--transition-duration-fast) var(--transition-timing-ease),
                border-color var(--transition-duration-fast) var(--transition-timing-ease);
}

.imtas-card:hover {
    background: var(--color-background-surface);
    border-color: var(--color-border-bold);
}

.imtas-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(63, 83, 162, 0.1);
    border-radius: var(--border-radius-200);
    margin-bottom: var(--space-200);
}

.imtas-card-icon svg {
    width: var(--icon-size-default);
    height: var(--icon-size-default);
    color: var(--imtas-secondary);
    stroke: var(--imtas-secondary);
}

.imtas-card-title {
    font-size: var(--font-size-200);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-100);
    color: var(--color-text-default);
}

.imtas-card-text {
    color: var(--color-text-subtle);
    margin-bottom: var(--space-200);
    line-height: var(--line-height-500);
    font-size: var(--font-size-100);
}

.imtas-card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-050);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-100);
    color: var(--imtas-secondary);
    transition: color var(--transition-duration-fast) var(--transition-timing-ease);
}

.imtas-card-link:hover {
    color: var(--imtas-secondary-dark);
    text-decoration: underline;
}

.imtas-card-link svg {
    width: var(--icon-size-small);
    height: var(--icon-size-small);
}

/* Service Card Variant */
.imtas-card-service {
    text-align: center;
    padding: var(--space-400) var(--space-300);
}

.imtas-card-service .imtas-card-icon {
    margin: 0 auto var(--space-200);
}

/* Highlighted Card - subtle top accent */
.imtas-card-highlight {
    border-top: var(--border-width-2) solid var(--imtas-secondary);
}

/* ==========================================================================
   FEATURES / TWO COLUMN LAYOUTS
   ========================================================================== */

.imtas-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-800);
    align-items: center;
}

.imtas-features-reversed {
    direction: rtl;
}

.imtas-features-reversed > * {
    direction: ltr;
}

.imtas-feature-image {
    border-radius: var(--border-radius-100);
    overflow: hidden;
    box-shadow: none;
    background: var(--color-background-surface);
    min-height: 360px;
}

.imtas-feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.imtas-feature-content {
    padding: var(--space-250) 0;
}

.imtas-feature-list {
    margin: var(--space-400) 0;
}

.imtas-feature-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-200);
    margin-bottom: var(--space-250);
    font-size: var(--font-size-200);
    line-height: var(--line-height-500);
}

.imtas-feature-list li::before {
    content: '';
    width: var(--icon-size-medium);
    height: var(--icon-size-medium);
    min-width: var(--icon-size-medium);
    background: transparent;
    margin-top: var(--space-025);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%233f53a2' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

/* ==========================================================================
   STATS / NUMBERS
   ========================================================================== */

.imtas-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-500);
}

.imtas-stat {
    text-align: center;
    padding: var(--space-400) var(--space-250);
}

.imtas-stat-number {
    font-family: var(--font-family-sans);
    font-size: clamp(var(--font-size-600), 4vw, var(--font-size-700));
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-default);
    line-height: var(--line-height-100);
    margin-bottom: var(--space-100);
}

.imtas-section-dark .imtas-stat-number {
    color: var(--color-text-inverse);
}

.imtas-stat-label {
    font-size: var(--font-size-100);
    color: var(--color-text-subtle);
    text-transform: none;
    letter-spacing: normal;
}

.imtas-section-dark .imtas-stat-label {
    color: var(--imtas-silver);
}

/* Divider between stats */
.imtas-stats-divided .imtas-stat {
    border-right: var(--border-width-1) solid var(--color-border-default);
}

.imtas-stats-divided .imtas-stat:last-child {
    border-right: none;
}

.imtas-section-dark .imtas-stats-divided .imtas-stat {
    border-color: rgba(255,255,255,0.2);
}

/* ==========================================================================
   CTA SECTIONS
   ========================================================================== */

.imtas-cta {
    text-align: center;
    padding: calc(var(--space-1000) * 1.25) var(--space-500);
}

.imtas-cta-title {
    font-size: clamp(var(--font-size-500), 4vw, var(--font-size-700));
    color: var(--color-text-inverse);
    margin-bottom: var(--space-250);
}

.imtas-cta-text {
    font-size: var(--font-size-200);
    color: rgba(255,255,255,0.8);
    max-width: 600px;
    margin: 0 auto var(--space-500);
    line-height: var(--line-height-500);
}

.imtas-cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-200);
    flex-wrap: wrap;
}

/* ==========================================================================
   CONTACT INFO BOX
   ========================================================================== */

.imtas-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-250);
    margin-bottom: var(--space-400);
}

.imtas-contact-icon {
    width: var(--space-500);
    height: var(--space-500);
    min-width: var(--space-500);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(63, 83, 162, 0.1);
    border-radius: var(--border-radius-200);
}

.imtas-contact-icon svg {
    width: var(--icon-size-default);
    height: var(--icon-size-default);
    stroke: var(--imtas-secondary);
}

.imtas-contact-content h4 {
    margin-bottom: var(--space-100);
}

.imtas-contact-content p {
    color: var(--color-text-subtle);
    margin: 0;
}

.imtas-contact-content a {
    color: var(--imtas-secondary);
    font-size: var(--font-size-200);
}

/* ==========================================================================
   FORMS (Design System)
   ========================================================================== */

.imtas-form-group {
    margin-bottom: var(--space-300);
}

.imtas-form-label {
    display: block;
    font-size: var(--font-size-100);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-100);
    color: var(--color-text-default);
}

.imtas-form-input,
.imtas-form-textarea,
.imtas-form-select {
    width: 100%;
    padding: var(--space-150) var(--space-200);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-200);
    border: var(--border-width-2) solid var(--color-border-default);
    border-radius: var(--border-radius-200);
    background: var(--color-background-default);
    transition: all var(--transition-duration-fast) var(--transition-timing-ease);
    /* Minimum height for touch targets */
    min-height: 44px;
}

.imtas-form-input:hover,
.imtas-form-textarea:hover,
.imtas-form-select:hover {
    border-color: var(--color-border-bold);
}

.imtas-form-input:focus,
.imtas-form-textarea:focus,
.imtas-form-select:focus {
    outline: none;
    border-color: var(--color-border-focused);
    box-shadow: 0 0 0 4px rgba(63, 83, 162, 0.15);
}

.imtas-form-input:disabled,
.imtas-form-textarea:disabled,
.imtas-form-select:disabled {
    background: var(--color-background-disabled);
    border-color: var(--color-border-disabled);
    color: var(--color-text-disabled);
    cursor: not-allowed;
}

/* Placeholder styling */
.imtas-form-input::placeholder,
.imtas-form-textarea::placeholder {
    color: var(--color-text-disabled);
}

.imtas-form-textarea {
    min-height: 150px;
    resize: vertical;
}

.imtas-form-box {
    background: var(--color-background-surface);
    padding: var(--space-400);
    border-radius: var(--border-radius-100);
    border: var(--border-width-1) solid var(--color-border-default);
}

/* Form error state */
.imtas-form-input.error,
.imtas-form-textarea.error,
.imtas-form-select.error {
    border-color: var(--color-icon-error);
}

.imtas-form-input.error:focus,
.imtas-form-textarea.error:focus,
.imtas-form-select.error:focus {
    box-shadow: 0 0 0 4px rgba(255, 86, 48, 0.15);
}

.imtas-form-error {
    color: var(--color-text-error);
    font-size: var(--font-size-075);
    margin-top: var(--space-050);
}

/* Form success state */
.imtas-form-input.success,
.imtas-form-textarea.success,
.imtas-form-select.success {
    border-color: var(--color-icon-success);
}

.imtas-form-success {
    color: var(--color-text-success);
    font-size: var(--font-size-075);
    margin-top: var(--space-050);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.imtas-footer {
    background: var(--imtas-primary);
    color: var(--color-text-inverse);
}

.imtas-footer-main {
    padding: var(--space-1000) 0 var(--space-800);
}

.imtas-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-800);
}

.imtas-footer-brand {
    padding-right: var(--space-500);
}

.imtas-footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-150);
    margin-bottom: var(--space-300);
    text-decoration: none;
}

.imtas-footer-logo-text {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-400);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-inverse);
}

.imtas-footer-about {
    color: rgba(255,255,255,0.7);
    line-height: var(--line-height-600);
    margin-bottom: var(--space-300);
}

.imtas-footer-social {
    display: flex;
    gap: var(--space-150);
}

.imtas-footer-social a {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border-radius: var(--border-radius-100);
    color: rgba(255,255,255,0.6);
    transition: color var(--transition-duration-fast) var(--transition-timing-ease);
}

.imtas-footer-social a:hover {
    color: var(--color-text-inverse);
}

.imtas-footer-social svg {
    width: var(--icon-size-medium);
    height: var(--icon-size-medium);
    stroke: currentColor;
}

.imtas-footer-heading {
    font-size: var(--font-size-075);
    font-weight: var(--font-weight-semibold);
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-200);
}

.imtas-footer-links li {
    margin-bottom: var(--space-150);
}

.imtas-footer-links a {
    color: rgba(255,255,255,0.7);
    transition: all var(--transition-duration-fast) var(--transition-timing-ease);
}

.imtas-footer-links a:hover {
    color: var(--color-text-inverse);
    padding-left: var(--space-100);
}

.imtas-footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-150);
    margin-bottom: var(--space-250);
    color: rgba(255,255,255,0.7);
}

.imtas-footer-contact svg {
    width: var(--icon-size-medium);
    min-width: var(--icon-size-medium);
    height: var(--icon-size-medium);
    stroke: var(--imtas-secondary);
    margin-top: var(--space-025);
}

.imtas-footer-contact a {
    color: rgba(255,255,255,0.7);
    transition: color var(--transition-duration-fast) var(--transition-timing-ease);
}

.imtas-footer-contact a:hover {
    color: var(--color-text-inverse);
}

/* Footer Bottom */
.imtas-footer-bottom {
    padding: var(--space-300) 0;
    border-top: var(--border-width-1) solid rgba(255,255,255,0.1);
}

.imtas-footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-250);
}

.imtas-copyright {
    color: rgba(255,255,255,0.6);
    font-size: var(--font-size-100);
}

.imtas-footer-legal {
    display: flex;
    gap: var(--space-400);
}

.imtas-footer-legal a {
    color: rgba(255,255,255,0.6);
    font-size: var(--font-size-100);
    transition: color var(--transition-duration-fast) var(--transition-timing-ease);
}

.imtas-footer-legal a:hover {
    color: var(--color-text-inverse);
}

/* ==========================================================================
   UTILITIES (Design System)
   ========================================================================== */

/* Text alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Spacing utilities using design tokens */
.mb-0 { margin-bottom: var(--space-0) !important; }
.mb-1 { margin-bottom: var(--space-100); }
.mb-2 { margin-bottom: var(--space-200); }
.mb-3 { margin-bottom: var(--space-300); }
.mb-4 { margin-bottom: var(--space-400); }
.mb-5 { margin-bottom: var(--space-600); }

.mt-0 { margin-top: var(--space-0) !important; }
.mt-1 { margin-top: var(--space-100); }
.mt-2 { margin-top: var(--space-200); }
.mt-3 { margin-top: var(--space-300); }
.mt-4 { margin-top: var(--space-400); }
.mt-5 { margin-top: var(--space-600); }

.py-1 { padding-top: var(--space-100); padding-bottom: var(--space-100); }
.py-2 { padding-top: var(--space-200); padding-bottom: var(--space-200); }
.py-3 { padding-top: var(--space-300); padding-bottom: var(--space-300); }
.py-4 { padding-top: var(--space-400); padding-bottom: var(--space-400); }

.px-1 { padding-left: var(--space-100); padding-right: var(--space-100); }
.px-2 { padding-left: var(--space-200); padding-right: var(--space-200); }
.px-3 { padding-left: var(--space-300); padding-right: var(--space-300); }
.px-4 { padding-left: var(--space-400); padding-right: var(--space-400); }

/* Gap utilities */
.gap-1 { gap: var(--space-100); }
.gap-2 { gap: var(--space-200); }
.gap-3 { gap: var(--space-300); }
.gap-4 { gap: var(--space-400); }

/* Border Accent Utilities */
.border-accent {
    border: var(--border-width-1) solid var(--color-border-default);
}

.border-accent-top {
    border-top: var(--border-width-2) solid var(--imtas-secondary);
}

.border-accent-left {
    border-left: var(--border-width-2) solid var(--imtas-secondary);
}

/* Color utilities */
.text-primary { color: var(--imtas-primary); }
.text-secondary { color: var(--imtas-secondary); }
.text-subtle { color: var(--color-text-subtle); }
.text-inverse { color: var(--color-text-inverse); }

.bg-surface { background-color: var(--color-background-surface); }
.bg-default { background-color: var(--color-background-default); }

/* Visually hidden (screen reader only) */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================================================
   RESPONSIVE STYLES (Design System Breakpoints)
   ========================================================================== */

/* Tablet and below: max-width 1200px */
@media (max-width: 1200px) {
    .imtas-cards-3,
    .imtas-cards-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .imtas-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .imtas-footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Tablet: max-width 1024px */
@media (max-width: 1024px) {
    .imtas-header-inner {
        height: 70px;
    }

    .imtas-nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-background-default);
        padding: calc(var(--space-1000) * 1.25) var(--space-400) var(--space-400);
        transform: translateX(100%);
        transition: transform var(--transition-duration-normal) var(--transition-timing-ease);
        overflow-y: auto;
        z-index: calc(var(--z-index-fixed) - 1);
    }

    .imtas-nav.active {
        transform: translateX(0);
    }

    .imtas-nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-0);
    }

    .imtas-nav-link {
        padding: var(--space-200) 0;
        border-bottom: var(--border-width-1) solid var(--color-border-default);
        font-size: var(--font-size-200);
    }

    .imtas-dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        padding: 0 0 0 var(--space-250);
        display: none;
    }

    .imtas-nav-item.active .imtas-dropdown {
        display: block;
    }

    .imtas-nav-cta {
        margin: var(--space-400) 0 0;
    }

    .imtas-mobile-toggle {
        display: flex;
    }

    .imtas-features {
        grid-template-columns: 1fr;
        gap: var(--space-500);
    }

    .imtas-features-reversed {
        direction: ltr;
    }

    .imtas-topbar {
        display: none;
    }
}

/* Mobile: max-width 768px */
@media (max-width: 768px) {
    :root {
        --section-padding: var(--space-800);
    }

    .imtas-container {
        padding: 0 var(--space-200);
    }

    .imtas-cards-2,
    .imtas-cards-3,
    .imtas-cards-4,
    .imtas-cards {
        grid-template-columns: 1fr;
    }

    .imtas-stats {
        grid-template-columns: 1fr;
        gap: var(--space-100);
    }

    .imtas-stats-divided .imtas-stat {
        border-right: none;
        border-bottom: var(--border-width-1) solid var(--color-border-default);
        padding: var(--space-250);
    }

    .imtas-section-dark .imtas-stats-divided .imtas-stat {
        border-color: rgba(255,255,255,0.2);
    }

    .imtas-stats-divided .imtas-stat:last-child {
        border-bottom: none;
    }

    .imtas-footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-500);
    }

    .imtas-footer-brand {
        padding-right: 0;
    }

    .imtas-footer-bottom-inner {
        flex-direction: column;
        text-align: center;
    }

    .imtas-footer-legal {
        justify-content: center;
    }

    .imtas-hero-buttons {
        flex-direction: column;
    }

    .imtas-hero-buttons .imtas-btn {
        width: 100%;
    }

    .imtas-cta {
        padding: var(--space-800) var(--space-250);
    }

    .imtas-cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .imtas-cta-buttons .imtas-btn {
        width: 100%;
        max-width: 300px;
    }

    .imtas-form-box {
        padding: var(--space-400) var(--space-250);
    }

    .imtas-card {
        padding: var(--space-400);
    }

    .imtas-card-service {
        padding: var(--space-500) var(--space-400);
    }

    /* Improve readability on mobile */
    .lead {
        font-size: var(--font-size-200);
    }
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(var(--space-400));
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp var(--transition-duration-slow) var(--transition-timing-ease) forwards;
}

.animate-delay-1 { animation-delay: 100ms; }
.animate-delay-2 { animation-delay: 200ms; }
.animate-delay-3 { animation-delay: 300ms; }

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(var(--space-400));
    transition: all var(--transition-duration-slow) var(--transition-timing-ease);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Keyboard Navigation Focus (WCAG 2.1 AA Compliant) */
body.keyboard-nav *:focus {
    outline: var(--border-width-2) solid var(--color-border-focused);
    outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: var(--space-200);
    background: var(--imtas-primary);
    color: var(--color-text-inverse);
    padding: var(--space-100) var(--space-200);
    z-index: var(--z-index-toast);
    border-radius: var(--border-radius-200);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
}

.skip-link:focus {
    top: var(--space-200);
}

/* Loading spinner */
.imtas-spinner {
    width: var(--icon-size-default);
    height: var(--icon-size-default);
    border: var(--border-width-2) solid var(--color-border-default);
    border-top-color: var(--imtas-secondary);
    border-radius: var(--border-radius-full);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Status messages */
.imtas-alert {
    padding: var(--space-200) var(--space-300);
    border-radius: var(--border-radius-200);
    border-left: var(--border-width-3) solid;
    margin-bottom: var(--space-200);
}

.imtas-alert-success {
    background: var(--color-background-success);
    border-color: var(--color-icon-success);
    color: var(--color-text-success);
}

.imtas-alert-warning {
    background: var(--color-background-warning);
    border-color: var(--color-icon-warning);
    color: var(--color-text-warning);
}

.imtas-alert-error {
    background: var(--color-background-error);
    border-color: var(--color-icon-error);
    color: var(--color-text-error);
}

.imtas-alert-info {
    background: var(--color-background-info);
    border-color: var(--color-icon-info);
    color: var(--imtas-secondary-dark);
}