/* ========================================
   CSS Reset & Base Styles
   ======================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors - Palette 2 */
    --primary-color: #345e5a; /* Vista Dark Teal */
    --primary-dark: #23403d;  /* Darker shade of Primary */
    --primary-light: #3c8fa6; /* Vista Teal (Accent 1) */
    --secondary-color: #746162; /* Vista Core */
    --accent-color: #3c8fa6;    /* Vista Teal */
    
    --text-primary: #345e5a; /* Vista Dark Teal for headings/primary text */
    --text-secondary: #746162; /* Vista Core for secondary text */
    --text-light: #dac6b9; /* Vista Sand */
    
    --bg-primary: #ffffff;
    --bg-secondary: #d3ebf4; /* Vista Sky */
    --bg-tertiary: #dac6b9; /* Vista Sand */
    --bg-dark: #345e5a; /* Vista Dark Teal */
    
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: 1.5rem;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* ========================================
   Container & Layout
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.section-header .section-title {
    text-align: center;
    width: 100%;
    max-width: 700px;
}

.section-header .section-description {
    text-align: left;
    width: 100%;
    max-width: 700px;
}

.section-title {
    font-size: clamp(1.8rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: background-color var(--transition-base);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.logo {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    transition: color var(--transition-fast);
}

.logo-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

.logo-tagline {
    font-size: 0.625rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.2;
}

.logo:hover .logo-name {
    color: var(--primary-dark);
}

.logo:hover .logo-tagline {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    font-weight: 500;
    color: var(--text-primary);
    padding: var(--spacing-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link:focus::after {
    width: 100%;
}

.language-switcher {
    display: flex;
    gap: var(--spacing-xs);
    padding-left: var(--spacing-sm);
    border-left: 1px solid var(--border-color);
}

.lang-btn {
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.flag-icon {
    width: 28px;
    height: 20px;
    object-fit: cover;
    border-radius: 2px;
    display: block;
}

.lang-btn:hover {
    background-color: var(--bg-secondary);
    transform: scale(1.1);
}

.lang-btn.active {
    background-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.lang-btn:not(.active) {
    opacity: 0.6;
}

.lang-btn:not(.active):hover {
    opacity: 1;
}

.nav-toggle {
    display: none;
    width: 2.5rem;
    height: 2.5rem;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xs);
}

.hamburger,
.hamburger::before,
.hamburger::after {
    width: 1.5rem;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before {
    top: -0.5rem;
}

.hamburger::after {
    bottom: -0.5rem;
}

.nav-toggle[aria-expanded="true"] .hamburger {
    background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: calc(60vh - 40px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 40px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgb(249, 249, 246);
    opacity: 0.2;
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 4rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 3vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.5;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-primary);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

/* ========================================
   File Upload Button
   ======================================== */
.file-upload-label {
    display: block;
    width: 100%;
}

.file-upload-input {
    display: none;
}

.file-upload-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 1.5rem 1.5rem;
    border: 2px dashed var(--primary-color);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(52, 94, 90, 0.02) 0%, rgba(60, 143, 166, 0.02) 100%);
    cursor: pointer;
    transition: all var(--transition-base);
    gap: 0.5rem;
}

.file-upload-button:hover {
    border-color: var(--primary-light);
    background: linear-gradient(135deg, rgba(52, 94, 90, 0.08) 0%, rgba(60, 143, 166, 0.08) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.file-upload-label:has(.file-upload-input:focus-visible) .file-upload-button {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(60, 143, 166, 0.1);
    outline: none;
}

.file-upload-icon {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--primary-color);
    transition: all var(--transition-base);
}

.file-upload-button:hover .file-upload-icon {
    color: var(--primary-light);
    transform: scale(1.1);
}

.file-upload-text {
    text-align: center;
}

.file-upload-main {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    margin: 0;
}

.file-upload-hint {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0.25rem 0 0 0;
}

.file-upload-filename {
    font-size: 0.875rem;
    color: var(--primary-light);
    font-weight: 500;
    margin-top: 0.5rem;
    min-height: 1.25rem;
    animation: slideIn var(--transition-base) ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-0.25rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Contact Section
   ======================================== */
.contact-info-centered {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-info-column {
    display: flex;
    flex-direction: column;
}

@media (max-width: 768px) {
    .contact-info-column {
        max-width: 100% !important;
        min-width: 100% !important;
    }
    
    .contact-info-centered {
        margin-bottom: var(--spacing-lg);
    }
    
    .contact-form {
        max-width: 100% !important;
    }
}

/* ========================================
   Form Styling
   ======================================== */
.contact-form {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.form-control {
    transition: all var(--transition-base);
    background-color: rgba(255, 255, 255, 0.4) !important;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color) !important;
    background-color: rgba(255, 255, 255, 0.6) !important;
    box-shadow: 0 0 0 3px rgba(52, 94, 90, 0.15);
}

.form-control:hover {
    border-color: var(--primary-light) !important;
    background-color: rgba(255, 255, 255, 0.5) !important;
}

/* ========================================
   About Section
   ======================================== */
.about {
    background-color: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.about-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    text-align: center;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    display: flex;
    justify-content: center;
}

.card-icon svg {
    width: 1em;
    height: 1em;
    fill: currentColor;
}

.about-card h3 {
    text-align: center;
    width: 100%;
    max-width: 700px;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.about-card p {
    text-align: left;
    width: 100%;
    max-width: 700px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   Services Section
   ======================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md); /* reduce gap */
    margin-top: var(--spacing-lg); /* reduce margin */
}

.service-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg); /* reduce padding */
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
}

.service-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.service-icon svg {
    width: 1em;
    height: 1em;
    fill: currentColor;
}

.service-card h3 {
    font-size: 1.15rem; /* slightly smaller */
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs); /* reduce margin */
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background-color: var(--bg-secondary);
}

.contact-info-centered {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.info-item:hover {
    color: var(--primary-color);
}

.info-icon svg {
    width: 1em;
    height: 1em;
    fill: currentColor;
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.info-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.info-text h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.info-text p,
.info-text a {
    color: var(--text-secondary);
}

.info-text a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
    font-size: 1.5rem;
    color: var(--bg-primary);
    margin-bottom: var(--spacing-sm);
}

.footer-links h4,
.footer-social h4 {
    font-size: 1.125rem;
    color: var(--bg-primary);
    margin-bottom: var(--spacing-md);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

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

.social-link {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.social-link:hover {
    background-color: var(--primary-color);
    color: var(--bg-primary);
}

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

/* ========================================
   Responsive Design - Mobile First
   ======================================== */

/* Mobile devices (portrait phones, less than 576px) */
@media (max-width: 575px) {
    :root {
        --container-padding: 1rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
}

/* Force-hide hero image on small screens */
@media (max-width: 1300px) {
    .container.hero-flex .image-bar,
    .hero .image-bar {
        display: none !important;
        visibility: hidden !important;
        height: 0 !important;
        width: 0 !important;
        overflow: hidden !important;
    }

    /* Ensure hero text centers when image removed */
    .container.hero-flex {
        justify-content: center !important;
    }

    /* push hero content below the fixed navbar and ensure visibility */
    .hero {
        min-height: auto !important;
        padding-top: 110px !important; /* accounts for navbar height */
        box-sizing: border-box;
    }

    .hero-content {
        position: relative !important;
        transform: none !important;
        top: 0 !important;
        left: 0 !important;
        margin: 0 auto !important;
        z-index: 2 !important;
        max-width: 90vw !important;
    }
}

/* Tablets and small desktops (576px and up) */
@media (max-width: 767px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        background-color: var(--bg-primary);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-md);
        gap: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: all var(--transition-base);
    }
    
    .nav-menu.active {
        max-height: 500px;
        opacity: 1;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--border-color);
    }
    
    .language-switcher {
        border-left: none;
        border-top: 2px solid var(--border-color);
        padding-left: 0;
        padding-top: var(--spacing-sm);
        margin-top: var(--spacing-sm);
        justify-content: center;
    }
}

/* Medium devices (768px and up) */
@media (min-width: 768px) {
    .about-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Large devices (992px and up) */
@media (min-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Extra large devices (1200px and up) */
@media (min-width: 1200px) {
    :root {
        --container-max-width: 1400px;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .navbar,
    .nav-toggle,
    .hero-buttons,
    .contact-form {
        display: none;
    }
    
    body {
        background-color: white;
        color: black;
    }
}

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

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --text-primary: #000000;
        --bg-primary: #ffffff;
    }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    /* Uncomment to enable dark mode
    :root {
        --primary-color: #60a5fa;
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --border-color: #334155;
    }
    */
}