:root {
    /* Colors */
    --primary-color: #0056B3;
    --secondary-color: #FFD700;
    --background-color: #F0F2F5;
    --footer-bg-color: #0F1C2E;
    --button-color: #FFD700;
    --text-color: #333333;
    --heading-color: #1A1A1A;
    --accent-color: var(--secondary-color); /* Using secondary as accent for consistency */

    --section-bg-1: #FFFFFF;
    --section-bg-2: #E6EAF0;
    --section-bg-3: #DCE1E7;
    --section-bg-4: #C3C7CE;

    /* Typography */
    --font-family-base: 'Inter', sans-serif;
    --font-size-base: 1.125rem; /* 18px */
    --line-height-base: 1.7;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;

    /* Borders & Shadows */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --shadow-sm: 0 4px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.1);

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

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

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-color);
    background-color: var(--background-color);
    margin: 0;
    padding-top: 5rem; /* Space for fixed header */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-base);
    color: var(--heading-color);
    line-height: 1.2;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem; /* 56px */
    font-weight: 800;
}

h2 {
    font-size: 2.75rem; /* 44px */
}

h3 {
    font-size: 2.25rem; /* 36px */
}

h4 {
    font-size: 1.75rem; /* 28px */
}

h5 {
    font-size: 1.5rem; /* 24px */
}

h6 {
    font-size: 1.25rem; /* 20px */
}

p {
    margin-bottom: var(--spacing-md);
    font-weight: 400;
}

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

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

ul, ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

li {
    margin-bottom: var(--spacing-sm);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--section-bg-1);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header .logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -0.03em;
}

.header .nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.header .nav-links a {
    color: var(--heading-color);
    font-size: 1.125rem;
    font-weight: 600;
    position: relative;
    padding-bottom: var(--spacing-xs);
}

.header .nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: width var(--transition-speed) var(--transition-ease);
}

.header .nav-links a:hover::after {
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-md);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-speed) var(--transition-ease);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--button-color);
    color: var(--heading-color); /* Dark text on bright button */
    border: 2px solid var(--button-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    background-color: var(--secondary-color); /* Ensure hover color is consistent */
}

/* Button hover effect (GSAP will handle the 'push' or 'scale') */
.btn-primary:active {
    transform: scale(0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--section-bg-1);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* Section Backgrounds */
.section-bg-1 {
    background-color: var(--section-bg-1);
}

.section-bg-2 {
    background-color: var(--section-bg-2);
}

.section-bg-3 {
    background-color: var(--section-bg-3);
}

.section-bg-4 {
    background-color: var(--section-bg-4);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-md);
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--heading-color);
}

.form-control {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid #ccc;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    background-color: var(--section-bg-1);
    transition: border-color var(--transition-speed) var(--transition-ease),
                box-shadow var(--transition-speed) var(--transition-ease);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color), 0.2);
}

/* Animated border on focus */
.form-control {
    position: relative;
    z-index: 1;
}

.form-control::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border: 2px solid transparent;
    border-radius: calc(var(--border-radius-sm) + 2px);
    pointer-events: none;
    z-index: 0;
    transition: border-color var(--transition-speed) var(--transition-ease);
}

.form-control:focus::before {
    border-color: var(--primary-color);
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.validation-message {
    font-size: 0.9rem;
    color: #e74c3c;
    margin-top: var(--spacing-xs);
    opacity: 0;
    transform: translateY(-5px);
    transition: opacity 0.2s ease-out, transform 0.2s ease-out;
}

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

.submit-button {
    position: relative;
    overflow: hidden;
}

.submit-button .loading-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease-in-out;
}

.submit-button.loading .loading-spinner {
    opacity: 1;
}

.submit-button.loading .btn-text {
    opacity: 0;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* Footer */
.footer {
    background-color: var(--footer-bg-color);
    color: #ecf0f1;
    padding: var(--spacing-xl) var(--spacing-xl);
    text-align: center;
    font-size: 0.9rem;
}

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

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

/* Utility Classes (to complement Tailwind) */
.container {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

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

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

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

.mt-lg {
    margin-top: var(--spacing-lg);
}

.py-xxl {
    padding-top: var(--spacing-xxl);
    padding-bottom: var(--spacing-xxl);
}

.py-xl {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.py-lg {
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
}

/* Communication Icons */
.icon-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--section-bg-1);
    font-size: 1.25rem;
    transition: background-color var(--transition-speed) var(--transition-ease), transform var(--transition-speed) var(--transition-ease);
}

.icon-link:hover {
    background-color: var(--secondary-color);
    color: var(--heading-color);
    transform: translateY(-3px);
}

/* AOS (Animate On Scroll) customization */
[data-aos] {
    opacity: 0;
    transition-property: transform, opacity;
    transition-duration: 1s; /* Adjusted for a slightly slower reveal */
    transition-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94); /* Smoother ease */
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translate(0) scale(1);
}

[data-aos="fade-up"] {
    transform: translateY(20px);
}

[data-aos="fade-left"] {
    transform: translateX(20px);
}

[data-aos="fade-right"] {
    transform: translateX(-20px);
}

/* Media Queries for Responsiveness */
@media (max-width: 1024px) {
    :root {
        --font-size-base: 1rem; /* 16px */
        --spacing-xl: 3rem;
        --spacing-xxl: 4rem;
    }

    h1 {
        font-size: 3rem; /* 48px */
    }

    h2 {
        font-size: 2.25rem; /* 36px */
    }

    h3 {
        font-size: 1.75rem; /* 28px */
    }

    .header {
        padding: var(--spacing-md) var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-base: 0.9375rem; /* 15px */
        --spacing-lg: 2rem;
        --spacing-xl: 2.5rem;
        --spacing-xxl: 3rem;
    }

    body {
        padding-top: 4rem; /* Adjust for smaller header */
    }

    h1 {
        font-size: 2.5rem; /* 40px */
    }

    h2 {
        font-size: 2rem; /* 32px */
    }

    h3 {
        font-size: 1.5rem; /* 24px */
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .header .nav-links {
        margin-top: var(--spacing-sm);
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }

    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-base: 0.875rem; /* 14px */
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
    }

    h1 {
        font-size: 2rem; /* 32px */
    }

    h2 {
        font-size: 1.75rem; /* 28px */
    }

    h3 {
        font-size: 1.25rem; /* 20px */
    }

    .header .logo {
        font-size: 1.5rem;
    }

    .btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 1rem;
    }

    .footer {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}