/*====================================================================
  1. Base & Reset
====================================================================*/
:root {
    /* Color Palette */
    --color-primary: #004d99; /* Deep Professional Blue */
    --color-primary-dark: #003366; /* Darker Blue for Hover */
    --color-secondary: #ff9900; /* Tactical Orange/Amber for accents/highlights (optional) */
    --color-dark: #2c3e50; /* Dark Text/Headings (Professional Grey-Blue) */
    --color-light: #f9f9f9; /* Light Background for sections */
    --color-white: #ffffff;

    /* Spacing */
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;

    /* Transitions */
    --transition-speed: 0.3s ease-in-out;

    /* Shadows */
    --shadow-light: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-card-hover: 0 8px 20px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
    font-size: 100%; /* Base 16px */
}

body {
    font-family: 'PT Sans', sans-serif;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
    overflow-x: hidden; /* Prevent horizontal scroll due to animations/marquee */
}

/* Base Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 2rem;
    color: var(--color-primary-dark);
    border-bottom: 3px solid var(--color-secondary); /* Professional underline effect */
    display: inline-block;
    padding-bottom: 5px;
    margin-bottom: var(--spacing-lg);
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-speed);
}

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

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


/* Utility Classes */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
}

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

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

.grid-2 {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-3 {
    display: grid;
    gap: var(--spacing-lg);
}

.section-tag {
    display: block;
    text-transform: uppercase;
    font-size: 0.9rem;
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

/* Button Styling & Hover Effect */
.btn {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--color-primary);
    border-radius: 5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: background-color var(--transition-speed), color var(--transition-speed), transform var(--transition-speed);
    cursor: pointer;
    text-align: center;
}

.btn:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-white);
    transform: translateY(-2px); /* Subtle lift animation */
}

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

.btn-primary-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.whatsapp-button {
    background-color: #25D366; /* WhatsApp Green */
    border-color: #25D366;
    color: var(--color-white);
}

.whatsapp-button:hover {
    background-color: #128C7E;
    border-color: #128C7E;
    transform: translateY(-2px);
}

.icon-primary {
    color: var(--color-primary);
}

/* Global Focus Ring for Accessibility */
*:focus {
    outline: 3px solid var(--color-secondary);
    outline-offset: 3px;
    border-radius: 2px;
}

/* Hide content until JS shows it (used for scroll-reveal) */
.hidden {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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


/*====================================================================
  2. Preloader
====================================================================*/
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-white);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.5s ease-out;
}

.preloader.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--color-light);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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


/*====================================================================
  3. Header & Navigation (PC and Mobile)
====================================================================*/
.site-header {
    background-color: rgba(255, 255, 255, 0.98); /* Slightly transparent background */
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-speed);
}

/* TWEAK: Sticky Header style when scrolled */
.site-header.scrolled {
    padding: 0.75rem 0; /* Slightly smaller padding when scrolled */
    background-color: var(--color-white); /* Ensure it's opaque */
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
.site-header.scrolled .logo img {
    height: 35px; /* Subtle logo shrink */
    transition: height var(--transition-speed);
}


.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 40px; /* Adjust as needed for logo size */
    width: auto;
    transition: height var(--transition-speed);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: block; /* Show on mobile */
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.nav-toggle .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px 0;
    background-color: var(--color-dark);
    transition: transform 0.3s, opacity 0.3s;
}

.nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100%;
    width: 70%;
    max-width: 300px;
    background-color: var(--color-dark);
    transform: translateX(100%);
    transition: transform 0.4s ease-in-out;
    padding-top: 5rem;
    z-index: 999;
}

.nav.is-open {
    transform: translateX(0);
}

.nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
}

.nav li a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--color-white);
    text-transform: uppercase;
    font-weight: 700;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-speed); /* Ensure smooth transition for active link */
}

.nav li a:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* TWEAK: Active Link Highlight (Mobile) */
.nav.is-open li a.active-link {
    background-color: var(--color-primary-dark);
}

/* FIX: Toggle Animation for 'X' sign */
.nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}


/*====================================================================
  4. Hero Section (Slider)
====================================================================*/
.hero-section {
    position: relative;
    height: 80vh; /* Standard professional height */
    overflow: hidden;
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide.active {
    opacity: 1;
}

.hero-text {
    text-align: center;
    color: var(--color-white);
    padding: var(--spacing-lg);
    background-color: rgba(0, 0, 0, 0.5); /* Semi-transparent dark overlay for readability */
    border-radius: 10px;
    max-width: 90%;
}

.hero-text h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-text p {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: var(--spacing-lg);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

/* Text entrance animation (controlled by JS) */
.animate-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide.active .animate-in {
    opacity: 1;
    transform: translateY(0);
}

.slide.active .delay-1 { transition-delay: 0.3s; }
.slide.active .delay-2 { transition-delay: 0.6s; }


/*====================================================================
  5. Content Sections (About, Solutions, Case Studies)
====================================================================*/

/* About Section Specifics */
.grid-about {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-image img {
    border-radius: 8px;
    box-shadow: var(--shadow-light);
}

/* Solutions Cards */
.solution-card {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border-radius: 8px;
    box-shadow: var(--shadow-light);
    transition: box-shadow var(--transition-speed), transform var(--transition-speed), background-color var(--transition-speed);
}

.solution-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-5px); /* Lift effect */
    border-bottom: 5px solid var(--color-primary); /* Highlight effect */
}

.solution-card i {
    margin-bottom: var(--spacing-md);
    font-size: 3rem;
    color: var(--color-primary);
}

.solution-card h4 {
    color: var(--color-primary-dark);
}

/* Case Studies Cards */
.case-study-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-left: 5px solid var(--color-primary);
    border-radius: 0 8px 8px 0;
    box-shadow: var(--shadow-light);
    transition: transform var(--transition-speed);
}

.case-study-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-card-hover);
}

.read-more {
    font-weight: 700;
    margin-top: var(--spacing-sm);
    display: inline-block;
}


/*====================================================================
  6. Partners & Patrons (Logo Marquee)
====================================================================*/
.scroll-container {
    overflow: hidden; /* Hide the scrollbar */
    padding: var(--spacing-md) 0;
    white-space: nowrap; /* Keep content on a single line */
}

.scroll-content {
    display: inline-flex;
    animation: marquee-scroll 40s linear infinite; /* Animation defined below */
    padding: 0 var(--spacing-lg); /* Padding on sides for seamless loop */
}

/* Pause scroll on hover */
.scroll-container:hover .scroll-content {
    animation-play-state: paused;
}

.partner-card, .patron-card {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 150px; /* Fixed width for each logo item */
    height: 100px;
    margin: 0 var(--spacing-md);
    opacity: 0.8;
    transition: opacity var(--transition-speed), transform var(--transition-speed);
}

.partner-card:hover, .patron-card:hover {
    opacity: 1;
    transform: scale(1.05);
}

.partner-card img, .patron-card img {
    max-height: 70px; /* Constrain image height */
    width: auto;
    object-fit: contain;
    filter: grayscale(100%); /* Desaturate logos for a professional look */
    transition: filter var(--transition-speed);
}

.partner-card:hover img, .patron-card:hover img {
    filter: grayscale(0%); /* Color on hover */
}

.partner-card h4, .patron-card h4 {
    display: none; /* Hide text, just show logo */
}

/* Marquee Animation */
@keyframes marquee-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); } /* Scrolls the entire duplicated set */
}


/*====================================================================
  7. Contact & Footer
====================================================================*/
.contact-grid {
    align-items: flex-start;
}

.contact-details h2 {
    margin-bottom: var(--spacing-md);
}

.contact-block {
    margin-bottom: var(--spacing-lg);
}

.contact-block h3 {
    color: var(--color-primary);
    font-size: 1.2rem;
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
}

.contact-block p i {
    margin-right: var(--spacing-sm);
    min-width: 20px;
}

/* Contact Form Styling */
.contact-form-container {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 8px;
    box-shadow: var(--shadow-light);
}

.contact-form .form-group {
    margin-bottom: var(--spacing-md);
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-family: inherit;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 77, 153, 0.2); /* Light primary color glow */
    outline: none;
}

.contact-form textarea {
    resize: vertical;
}

.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;
}

/* Footer Styling */
.site-footer {
    background-color: var(--color-dark);
    color: #b0b0b0;
    padding: 1.5rem 0;
    font-size: 0.9rem;
}

.footer-flex {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-md);
}

.site-footer a {
    color: var(--color-white);
    opacity: 0.8;
}

.site-footer a:hover {
    color: var(--color-primary);
    opacity: 1;
}

.social a {
    font-size: 1.2rem;
    margin-left: var(--spacing-md);
    transition: transform var(--transition-speed);
}

.social a:hover {
    transform: scale(1.1);
}

/*====================================================================
  8. Cookie Banner & Scroll-to-Top
====================================================================*/
#cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-md) 0;
    z-index: 2000;
    transform: translateY(100%); /* Start off-screen */
    transition: transform 0.5s ease-out;
}

#cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    text-align: center;
}

.cookie-buttons .btn {
    margin: 0 var(--spacing-sm);
    text-transform: none;
    font-weight: 400;
    padding: 0.5rem 1rem;
}

.privacy-link {
    color: var(--color-secondary);
    font-weight: 700;
}

.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    box-shadow: var(--shadow-light);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0; /* Hidden by default, controlled by JS */
    visibility: hidden;
    transition: opacity var(--transition-speed), visibility var(--transition-speed);
    z-index: 1500;
}

.scroll-to-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background-color: var(--color-secondary);
}


/*====================================================================
  9. Media Queries (PC/Desktop Enhancements)
====================================================================*/
@media (min-width: 768px) {
    /* Base Grid Layouts */
    .grid-2 {
        grid-template-columns: 1fr 1fr;
    }

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

    /* Header & Navigation PC View */
    .nav-toggle {
        display: none; /* Hide toggle on PC */
    }

    .nav {
        position: static;
        height: auto;
        width: auto;
        background: none;
        transform: translateX(0);
        padding-top: 0;
        z-index: auto;
    }

    .nav ul {
        flex-direction: row;
    }

    .nav li a {
        color: var(--color-dark);
        border-bottom: none;
        padding: 0.5rem 1rem;
    }

    .nav li a:hover {
        background-color: transparent;
        color: var(--color-primary);
        border-bottom: 2px solid var(--color-primary); /* Stylish indicator on hover */
        padding-bottom: 3px;
    }

    /* TWEAK: Active Link Highlight (PC) */
    .nav li a.active-link {
        color: var(--color-primary); /* Primary color for active link */
        font-weight: 700;
        border-bottom: 2px solid var(--color-primary); /* Visual indicator */
        padding-bottom: 3px;
    }

    .header-flex {
        gap: 2rem;
    }

    /* Hero Text Positioning */
    .hero-text {
        padding: var(--spacing-xl);
        background-color: rgba(0, 0, 0, 0.4);
    }

    .hero-text h1 {
        font-size: 3.5rem;
    }

    .hero-text p {
        font-size: 1.5rem;
    }

    /* About Grid PC View */
    .grid-about {
        grid-template-columns: 3fr 2fr; /* Content slightly wider than image */
    }

    /* Footer PC View */
    .footer-flex {
        flex-direction: row;
        justify-content: space-between;
    }

    /* Cookie Banner PC View */
    .cookie-content {
        flex-direction: row;
        justify-content: space-between;
    }
}