/* KREST FACILITY SERVICES - MAIN STYLESHEET */

/* ============================================
   CSS RESET & BASE STYLES
   ============================================ */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

/* ============================================
   DESIGN SYSTEM - COLORS
   ============================================ */

:root {
    --color-primary: #1a365d;
    --color-primary-dark: #0f2744;
    --color-primary-light: #2c5282;
    --color-secondary: #c05621;
    --color-secondary-dark: #9c4216;
    --color-secondary-light: #dd6b20;
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    --color-success: #10b981;
    --color-error: #ef4444;
}

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

.top-bar {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: 0.5rem 0;
    font-size: 0.875rem;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.top-bar-info {
    display: flex;
    gap: 2rem;
    align-items: center;
    flex-wrap: wrap;
}

.top-bar-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.top-bar-item a {
    color: var(--color-white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.top-bar-item a:hover {
    color: var(--color-secondary);
}

.language-selector {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.language-selector a {
    color: var(--color-white);
    text-decoration: none;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.language-selector a:hover,
.language-selector a.active {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

/* ============================================
   LAYOUT UTILITIES
  ============================================ */

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
}

.section-gray {
    background-color: var(--color-gray-50);
    background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.section-dark {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark h5,
.section-dark h6 {
    color: var(--color-white);
}

/* ============================================
   TYPOGRAPHY
  ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--color-gray-900);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p { margin-bottom: 1rem; }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* ============================================
   BUTTONS
  ============================================ */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--color-secondary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(192, 86, 33, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.btn-cta {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

/* ============================================
   NAVIGATION
  ============================================ */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--color-white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.main-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.site-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

.site-logo img {
    max-height: 56px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    color: var(--color-gray-700);
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--color-secondary);
}

.nav-menu .btn {
    margin-left: 1rem;
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-white);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 100;
}

.dropdown-menu li {
    display: block;
    position: relative;
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--color-gray-700);
    border-bottom: 1px solid var(--color-gray-100);
}

.dropdown-menu a:hover {
    background-color: var(--color-gray-50);
    color: var(--color-secondary);
}

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

/* Nested Dropdown Menu */
.dropdown-menu .dropdown-menu {
    top: 0;
    left: 100%;
    transform: translateX(-10px);
}

.dropdown-menu li:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.dropdown-menu .menu-item-has-children > a::after {
    content: '›';
    float: right;
    margin-left: 1rem;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* ============================================
   HERO SECTION
  ============================================ */

.hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.2;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--color-white);
    line-height: 1.1;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.hero-tagline {
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 2rem;
    color: var(--color-gray-200);
    max-width: 700px;
}

.hero-services {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.hero-service-pillar {
    position: relative;
    padding-left: 2.5rem;
}

.service-pillar-number {
    position: absolute;
    left: 0;
    top: 0;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-secondary);
    letter-spacing: 0.1em;
}

.hero-service-pillar h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-white);
    margin: 0;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ============================================
   FEATURE CARDS
  ============================================ */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 4px solid var(--color-secondary);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.feature-card h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* ============================================
   SERVICE CARDS
  ============================================ */

.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    background-color: var(--color-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.service-card-image {
    height: 220px;
    background-size: cover;
    background-position: center;
    background-color: var(--color-gray-200);
    transition: transform 0.3s ease;
    overflow: hidden;
}

.service-card:hover .service-card-image {
    transform: scale(1.05);
}

.service-card-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-card h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-size: 1.35rem;
    font-weight: 600;
}

.service-card p {
    color: var(--color-gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    flex-grow: 1;
}

/* ============================================
   FORMS
  ============================================ */

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-gray-700);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-gray-300);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-response {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 4px;
}

.form-response.success {
    background-color: var(--color-success);
    color: var(--color-white);
}

.form-response.error {
    background-color: var(--color-error);
    color: var(--color-white);
}

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

.site-footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    color: var(--color-secondary);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1rem;
    display: block;
}

.footer-section p {
    color: var(--color-white);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.footer-links,
.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li,
.footer-contact li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--color-white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-secondary);
}

.footer-contact strong {
    color: var(--color-secondary);
    font-weight: 600;
}

.footer-contact li {
    color: var(--color-white);
}

.footer-contact a {
    color: var(--color-white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contact a:hover {
    color: var(--color-secondary);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: var(--color-gray-300);
    margin: 0;
}

/* ============================================
   PAGE HERO
  ============================================ */

.page-hero {
    text-align: center;
    padding: 2rem 0;
}

.page-hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.page-hero p {
    font-size: 1.25rem;
    color: var(--color-gray-200);
}

/* ============================================
   SECTION HEADER
  ============================================ */

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-gray-900);
}

.section-dark .section-header h2 {
    color: var(--color-white);
}

.section-header p {
    color: var(--color-gray-600);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.125rem;
    line-height: 1.6;
}

.section-dark .section-header p {
    color: var(--color-gray-200);
}

/* ============================================
   SPLIT LAYOUT
  ============================================ */

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.split-image {
    min-height: 400px;
}

.intro-image,
.careers-image {
    width: 100%;
    height: 100%;
    min-height: 400px;
    background-size: cover;
    background-position: center;
    border-radius: 8px;
}

.split-content {
    padding: 2rem 0;
}

.section-eyebrow {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-secondary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: block;
}

.section-cta {
    margin-top: 2rem;
}

/* ============================================
   FINAL CTA
  ============================================ */

.final-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    text-align: center;
}

.final-cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.final-cta h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1rem;
}

.final-cta p {
    font-size: 1.25rem;
    color: var(--color-gray-200);
    margin-bottom: 2rem;
}

.final-cta .cta-buttons {
    justify-content: center;
}

/* ============================================
   FAQ GRID
  ============================================ */

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.faq-item {
    background-color: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-left: 4px solid var(--color-secondary);
}

.faq-item h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.faq-item p {
    color: var(--color-gray-600);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* ============================================
   CONTACT GRID
  ============================================ */

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 2rem;
}

.contact-info-section,
.contact-form-section {
    padding: 2rem 0;
}

.contact-details {
    margin-top: 2rem;
}

.contact-item {
    margin-bottom: 2rem;
}

.contact-item h3 {
    color: var(--color-primary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.contact-item p {
    color: var(--color-gray-600);
    line-height: 1.6;
}

.contact-item a {
    color: var(--color-primary);
    text-decoration: none;
}

.contact-item a:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

.contact-cta {
    margin-top: 3rem;
    padding: 2rem;
    background-color: var(--color-gray-50);
    border-radius: 8px;
    border-left: 4px solid var(--color-secondary);
}

.contact-cta h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.contact-cta p {
    color: var(--color-gray-600);
    margin-bottom: 1.5rem;
}

/* ============================================
   TABLET OPTIMIZATION
  ============================================ */

@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.875rem; }
    
    .hero h1 {
        font-size: 2.25rem;
    }
    
    .hero-tagline {
        font-size: 1.125rem;
    }
    
    .feature-grid,
    .service-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .split-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .split-image {
        order: -1;
    }
    
    .nav-menu {
        gap: 1.5rem;
    }
    
    .nav-menu .btn {
        font-size: 0.85rem;
        padding: 0.625rem 1.25rem;
    }
    
    .top-bar .container {
        flex-wrap: wrap;
    }
    
    .top-bar-info {
        gap: 1rem;
    }
}

/* ============================================
   RESPONSIVE DESIGN
  ============================================ */

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    /* Top Bar Mobile */
    .top-bar {
        padding: 0.75rem 0;
    }
    
    .top-bar .container {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .top-bar-info {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
    
    .top-bar-item {
        font-size: 0.8rem;
    }
    
    .language-selector {
        align-self: flex-end;
    }
    
    .hero {
        min-height: 60vh;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-tagline {
        font-size: 1rem;
    }
    
    .main-navigation {
        flex-wrap: wrap;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 0;
        margin-top: 1rem;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu .btn {
        width: 100%;
        margin-left: 0;
        margin-top: 1rem;
    }
    
    .dropdown-menu {
        position: static;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        background-color: var(--color-gray-50);
        padding-left: 1rem;
    }
    
    .dropdown-menu .dropdown-menu {
        position: static;
        transform: none;
        padding-left: 2rem;
    }
    
    .dropdown-menu a {
        border-bottom: none;
        padding: 0.5rem 0;
    }
    
    .dropdown-menu .menu-item-has-children > a::after {
        content: '▼';
        float: right;
        font-size: 0.75rem;
    }
    
    .feature-grid,
    .service-cards {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    /* About page mobile fixes */
    .section-dark {
        padding: 1rem 0 !important;
    }
    
    .page-hero {
        padding: 0.5rem 0 !important;
    }
    
    .page-hero h1 {
        font-size: 1.5rem !important;
        margin-bottom: 0.5rem !important;
    }
    
    .page-hero p {
        font-size: 0.85rem !important;
        line-height: 1.4 !important;
    }
    
    .section {
        padding: 1.5rem 0 !important;
    }
    
    .split-layout {
        grid-template-columns: 1fr;
        gap: 0.75rem !important;
    }
    
    .split-image {
        order: -1;
    }
    
    .intro-image,
    .careers-image {
        min-height: 100px !important;
        aspect-ratio: 16 / 9 !important;
        max-height: 140px !important;
        height: auto !important;
    }
    
    .split-content {
        padding: 0.25rem 0 !important;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* ============================================
   ACCESSIBILITY
  ============================================ */

.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;
}

:focus-visible {
    outline: 3px solid var(--color-secondary);
    outline-offset: 2px;
}

a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 3px solid var(--color-secondary);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: 8px;
    z-index: 1001;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* ============================================
   IMAGES
  ============================================ */

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

/* ============================================
   UTILITIES
  ============================================ */

.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }
.py-4 { padding-top: 4rem; padding-bottom: 4rem; }