/* Table of Contents
1.  Global Styles & Variables
2.  Typography
3.  Container & Layout Utilities
4.  Buttons (Global)
5.  Header & Navigation
6.  Hero Section
7.  Methodology Section
8.  Insights Section
9.  Community (Testimonials) Section
10. Gallery Section
11. Resources Section
12. Contact Section
13. Footer
14. Page-Specific Styles (Privacy, Terms, Success)
15. Animations & Transitions
16. Responsive Design
*/

/* 1. Global Styles & Variables
-------------------------------------------------------------------------------- */
:root {
    /* Color Palette (Monochromatic with a Blue Accent) */
    --color-background: #F8F9FA; /* Very Light Gray */
    --color-surface: #FFFFFF;    /* White (for cards, distinct backgrounds) */
    --color-border: #DEE2E6;     /* Light Gray Border */

    --color-text-primary: #212529;    /* Almost Black (for main text, headings) */
    --color-text-secondary: #495057;  /* Dark Gray (for less important text) */
    --color-text-muted: #6C757D;      /* Gray (for subtitles, captions) */
    --color-text-on-dark: #F8F9FA;    /* Light text for dark backgrounds */

    --color-primary-accent: #007BFF;       /* Bright Blue (for CTAs, links, highlights) */
    --color-primary-accent-dark: #0056b3;  /* Darker Blue (for hover states) */

    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-dark-overlay: rgba(0, 0, 0, 0.5); /* Overlay for images with text */
    --color-shadow: rgba(0, 0, 0, 0.075);     /* Subtle shadow */
    --color-focus-ring: rgba(0, 123, 255, 0.25); /* Focus ring for accessibility */

    /* Fonts */
    --font-primary: 'Playfair Display', serif;
    --font-secondary: 'Source Sans Pro', sans-serif;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-small: 8px;
    --spacing-medium: 16px;
    --spacing-large: 24px;
    --spacing-xlarge: 32px;
    --spacing-xxlarge: 48px;

    /* Section Padding */
    --section-padding-base: 60px; /* Default for mobile */
    --section-padding-desktop: 80px;

    /* Transitions */
    --transition-speed-fast: 0.2s;
    --transition-speed-normal: 0.3s;
    --transition-speed-slow: 0.5s;
    --transition-timing: ease-in-out;

    /* Header Height (for page content offset) */
    --header-height: 70px; /* Adjust if header height changes */
}

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

html {
    font-size: 16px; /* Base font size */
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--color-text-secondary);
    background-color: var(--color-background);
    overflow-x: hidden; /* Prevent horizontal scroll */
}

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

/* 2. Typography
-------------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    color: var(--color-text-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-medium);
    font-weight: 700;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.2rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: var(--spacing-medium);
    color: var(--color-text-secondary);
}

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

a:hover {
    color: var(--color-primary-accent-dark);
    text-decoration: underline;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-small); /* Reduced margin for subtitle */
    color: var(--color-text-primary); /* Ensure high contrast */
}

.section-subtitle {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xlarge);
    color: var(--color-text-muted);
    font-size: clamp(1rem, 1.5vw, 1.15rem);
}

.section-paragraph-spacing {
    margin-top: var(--spacing-large);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* 3. Container & Layout Utilities
-------------------------------------------------------------------------------- */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-medium);
}

.section-padding {
    padding-top: var(--section-padding-base);
    padding-bottom: var(--section-padding-base);
}
.section-padding-alt {
    padding-top: var(--section-padding-base);
    padding-bottom: var(--section-padding-base);
    background-color: var(--color-surface); /* For alternating section backgrounds */
}

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

.two-columns {
    grid-template-columns: 1fr; /* Default for mobile */
}

.three-columns {
    grid-template-columns: 1fr; /* Default for mobile */
}

/* 4. Buttons (Global)
-------------------------------------------------------------------------------- */
.btn, button, input[type="submit"] {
    display: inline-block;
    padding: 12px 28px;
    font-family: var(--font-secondary);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color var(--transition-speed-normal) var(--transition-timing),
                color var(--transition-speed-normal) var(--transition-timing),
                transform var(--transition-speed-fast) var(--transition-timing),
                box-shadow var(--transition-speed-normal) var(--transition-timing);
    user-select: none;
}

.btn-primary,
input[type="submit"].btn-primary, /* If class is added to submit */
button.btn-primary /* If class is added to button */
 {
    background-color: var(--color-primary-accent);
    color: var(--color-white);
    border-color: var(--color-primary-accent);
}
/* Default submit button if no .btn-primary class */
input[type="submit"], button[type="submit"] {
    background-color: var(--color-primary-accent);
    color: var(--color-white);
    border-color: var(--color-primary-accent);
}


.btn:hover,
button:hover,
input[type="submit"]:hover {
    background-color: var(--color-primary-accent-dark);
    border-color: var(--color-primary-accent-dark);
    color: var(--color-white); /* Ensure text color remains white on hover for primary */
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--color-shadow);
}

.btn:active,
button:active,
input[type="submit"]:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px var(--color-shadow);
}

.btn:focus,
button:focus,
input[type="submit"]:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-focus-ring);
}

/* 5. Header & Navigation
-------------------------------------------------------------------------------- */
.site-header {
    background-color: rgba(255, 255, 255, 0.9); /* Semi-transparent white */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--spacing-medium) 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px var(--color-shadow);
    height: var(--header-height);
    display: flex;
    align-items: center;
}

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

.logo {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-text-primary);
    text-decoration: none;
}
.logo:hover {
    color: var(--color-primary-accent);
}

.main-navigation .nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-large);
}

.main-navigation .nav-links a {
    font-family: var(--font-secondary);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-decoration: none;
    padding: var(--spacing-small) 0;
    position: relative;
}

.main-navigation .nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary-accent);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transition-speed-normal) var(--transition-timing);
}

.main-navigation .nav-links a:hover::after,
.main-navigation .nav-links a.active::after { /* Add 'active' class via JS */
    transform: scaleX(1);
}
.main-navigation .nav-links a:hover {
    color: var(--color-text-primary);
    text-decoration: none;
}

.menu-toggle {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-small);
}

.hamburger-icon {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    position: relative;
    transition: background-color var(--transition-speed-fast) var(--transition-timing);
}

.hamburger-icon::before,
.hamburger-icon::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: transform var(--transition-speed-normal) var(--transition-timing),
                top var(--transition-speed-normal) var(--transition-timing);
}

.hamburger-icon::before { top: -7px; }
.hamburger-icon::after { top: 7px; }

/* Mobile Menu Open State (toggled by JS) */
.menu-toggle.is-active .hamburger-icon {
    background-color: transparent; /* Middle bar disappears */
}
.menu-toggle.is-active .hamburger-icon::before {
    top: 0;
    transform: rotate(45deg);
}
.menu-toggle.is-active .hamburger-icon::after {
    top: 0;
    transform: rotate(-45deg);
}

/* 6. Hero Section
-------------------------------------------------------------------------------- */
.hero-section {
    min-height: calc(100vh - var(--header-height)); /* Adjusted for fixed header */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xxlarge) var(--spacing-medium);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative; /* For overlay if not directly in style */
}

.hero-content {
    max-width: 800px;
    position: relative; /* Ensure content is above overlay */
    z-index: 2;
}

.hero-content h1 {
    color: var(--color-white); /* As per requirement */
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    text-shadow: 1px 1px 5px rgba(0,0,0,0.7); /* Ensure readability */
}

.hero-content p {
    color: var(--color-white); /* As per requirement */
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    margin-bottom: var(--spacing-xlarge);
    line-height: 1.7;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
}

.hero-section .btn-primary {
    padding: 15px 35px;
    font-size: 1.1rem;
}

/* 7. Methodology Section
-------------------------------------------------------------------------------- */
.methodology-card {
    background-color: var(--color-surface);
    border-radius: 12px;
    padding: var(--spacing-large);
    box-shadow: 0 5px 15px var(--color-shadow);
    transition: transform var(--transition-speed-normal) var(--transition-timing),
                box-shadow var(--transition-speed-normal) var(--transition-timing);
    text-align: center; /* Center icon and title */
}
.methodology-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}
.methodology-card .card-icon {
    margin-bottom: var(--spacing-medium);
    display: inline-block; /* To center the image via text-align on parent */
}
.methodology-card .card-icon img {
    height: 80px; /* As per HTML */
    width: auto;
    margin: 0 auto; /* Ensure centered if block */
}
.methodology-card h3 {
    margin-bottom: var(--spacing-small);
    font-size: 1.4rem;
    color: var(--color-text-primary);
}
.methodology-card p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    text-align: left; /* Paragraphs left-aligned */
}

/* 8. Insights Section
-------------------------------------------------------------------------------- */
.insight-card {
    background-color: var(--color-surface);
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--color-shadow);
    overflow: hidden; /* To make border-radius apply to image */
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-speed-normal) var(--transition-timing),
                box-shadow var(--transition-speed-normal) var(--transition-timing);
}
.insight-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}
.insight-card .card-image {
    width: 100%;
    height: 220px; /* Fixed height for image container */
    overflow: hidden;
}
.insight-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-speed-slow) var(--transition-timing);
}
.insight-card:hover .card-image img {
    transform: scale(1.05);
}
.insight-card .card-content {
    padding: var(--spacing-large);
    flex-grow: 1; /* Allows content to take remaining space if card heights vary */
    display: flex;
    flex-direction: column;
}
.insight-card h3 {
    margin-bottom: var(--spacing-small);
    font-size: 1.4rem;
}
.insight-card p {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-medium);
    flex-grow: 1; /* Pushes link to bottom if content heights vary */
}
.read-more-link {
    display: inline-block;
    margin-top: auto; /* Pushes to bottom */
    font-weight: 600;
    color: var(--color-primary-accent);
    text-decoration: none;
    position: relative;
    padding-bottom: 3px;
    align-self: flex-start; /* Align link to the left */
}
.read-more-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-speed-normal) var(--transition-timing);
}
.read-more-link:hover {
    text-decoration: none; /* Remove default underline if any */
}
.read-more-link:hover::after {
    transform: scaleX(1);
}

/* 9. Community (Testimonials) Section
-------------------------------------------------------------------------------- */
.testimonial-card {
    background-color: var(--color-surface);
    border-radius: 12px;
    padding: var(--spacing-large);
    box-shadow: 0 5px 15px var(--color-shadow);
    display: flex;
    flex-direction: column;
}
.testimonial-card p {
    font-style: italic;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-medium);
    font-size: 1.05rem;
    line-height: 1.7;
    position: relative;
    padding-left: var(--spacing-large);
}
.testimonial-card p::before {
    content: '“';
    font-family: var(--font-primary);
    font-size: 3rem;
    color: var(--color-primary-accent);
    position: absolute;
    left: -5px;
    top: -5px;
    opacity: 0.8;
}
.testimonial-card h4 {
    font-family: var(--font-secondary);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}
.testimonial-card .rating {
    color: #FFC107; /* Standard gold color for stars */
    font-size: 1.2rem;
}

/* 10. Gallery Section
-------------------------------------------------------------------------------- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-medium);
}
.gallery-item {
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 10px var(--color-shadow);
    position: relative; /* For potential overlays or captions */
    aspect-ratio: 4 / 3; /* Maintain aspect ratio */
}
.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-speed-slow) var(--transition-timing),
                filter var(--transition-speed-slow) var(--transition-timing);
}
.gallery-item:hover img {
    transform: scale(1.05);
    filter: brightness(1.1);
}

/* 11. Resources Section
-------------------------------------------------------------------------------- */
.resource-card {
    background-color: var(--color-surface);
    border-radius: 12px;
    padding: var(--spacing-large);
    box-shadow: 0 5px 15px var(--color-shadow);
    transition: transform var(--transition-speed-normal) var(--transition-timing),
                box-shadow var(--transition-speed-normal) var(--transition-timing);
}
.resource-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(0,0,0,0.1);
}
.resource-card h4 a {
    font-family: var(--font-primary);
    font-size: 1.3rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-small);
    text-decoration: none;
}
.resource-card h4 a:hover {
    color: var(--color-primary-accent);
    text-decoration: underline;
}
.resource-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* 12. Contact Section
-------------------------------------------------------------------------------- */
.contact-form-container {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--color-surface);
    padding: var(--spacing-xxlarge) var(--spacing-xlarge);
    border-radius: 12px;
    box-shadow: 0 5px 20px var(--color-shadow);
}
.form-group {
    margin-bottom: var(--spacing-large);
}
.form-group label {
    display: block;
    font-family: var(--font-secondary);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-small);
    font-size: 0.95rem;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 14px 18px; /* Slightly larger padding */
    font-family: var(--font-secondary);
    font-size: 1rem;
    color: var(--color-text-secondary);
    background-color: var(--color-background); /* Field background */
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-sizing: border-box;
    transition: border-color var(--transition-speed-normal) var(--transition-timing),
                box-shadow var(--transition-speed-normal) var(--transition-timing);
}
.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary-accent);
    box-shadow: 0 0 0 3px var(--color-focus-ring);
}
.form-group textarea {
    resize: vertical;
    min-height: 120px;
}
.btn-submit {
    width: 100%;
    padding: 15px; /* Larger submit button */
    font-size: 1.1rem;
}

/* 13. Footer
-------------------------------------------------------------------------------- */
.site-footer {
    background-color: var(--color-text-primary); /* Dark background */
    color: #adb5bd; /* Lighter gray for general text */
    padding: var(--section-padding-desktop) 0 0; /* More padding on desktop */
}
.site-footer h4 {
    font-family: var(--font-primary);
    color: var(--color-white);
    margin-bottom: var(--spacing-medium);
}
.site-footer p,
.site-footer li {
    color: #adb5bd; /* Consistent light gray */
    margin-bottom: var(--spacing-small);
    font-size: 0.95rem;
}
.site-footer ul {
    list-style: none;
    padding: 0;
}
.site-footer a {
    color: var(--color-surface); /* White or very light gray for links */
    text-decoration: none;
}
.site-footer a:hover {
    color: var(--color-primary-accent); /* Blue accent on hover */
    text-decoration: underline;
}
.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xlarge);
    padding-bottom: var(--section-padding-desktop);
}
.footer-column .social-links {
    margin-top: var(--spacing-medium);
}
.footer-column .social-links li {
    margin-bottom: var(--spacing-small);
}
.copyright {
    text-align: center;
    padding: var(--spacing-large) 0;
    border-top: 1px solid #343a40; /* Darker border, subtle */
    color: var(--color-text-muted); /* Original muted gray for copyright for contrast */
    font-size: 0.9rem;
}

/* 14. Page-Specific Styles (Privacy, Terms, Success)
-------------------------------------------------------------------------------- */
/* For content on privacy and terms pages */
.page-content-wrapper { /* Add this class to main element on privacy/terms pages */
    padding-top: calc(var(--header-height) + var(--section-padding-base)); /* Offset for fixed header */
    padding-bottom: var(--section-padding-base);
}
.page-content-wrapper .container { /* Re-use container for centering */
    max-width: 800px; /* Optimal for long text readability */
}
.page-content-wrapper h1,
.page-content-wrapper h2,
.page-content-wrapper h3 {
    margin-top: var(--spacing-xlarge);
    margin-bottom: var(--spacing-medium);
}
.page-content-wrapper p,
.page-content-wrapper ul,
.page-content-wrapper ol {
    line-height: 1.8; /* Better readability for text-heavy pages */
    margin-bottom: var(--spacing-medium);
}
.page-content-wrapper ul,
.page-content-wrapper ol {
    padding-left: var(--spacing-large);
}

/* For success.html page */
body.success-page { /* Add class to body of success.html */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--color-background);
}
.success-page-main-content { /* A wrapper for the main success message */
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--spacing-xxlarge) var(--spacing-medium);
}
.success-page-main-content .icon-success { /* Optional: if you add an icon */
    font-size: 4rem;
    color: var(--color-primary-accent);
    margin-bottom: var(--spacing-medium);
}
.success-page-main-content h1 {
    color: var(--color-primary-accent); /* Use accent for success title */
}
.success-page-main-content p {
    font-size: 1.15rem;
    max-width: 600px;
}

/* 15. Animations & Transitions (Scroll-dependent placeholder)
-------------------------------------------------------------------------------- */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transition-delay: 0.1s; /* Slight delay */
}
.scroll-animate.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* 16. Responsive Design
-------------------------------------------------------------------------------- */
@media (min-width: 768px) {
    .section-padding,
    .section-padding-alt {
        padding-top: var(--section-padding-desktop);
        padding-bottom: var(--section-padding-desktop);
    }
    .two-columns {
        grid-template-columns: repeat(2, 1fr);
    }
    .three-columns {
        grid-template-columns: repeat(3, 1fr);
    }
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 767px) {
    .main-navigation .nav-links {
        display: none; /* Hidden by default on mobile */
        flex-direction: column;
        position: absolute;
        top: var(--header-height); /* Position below header */
        left: 0;
        width: 100%;
        background-color: var(--color-surface);
        box-shadow: 0 5px 10px var(--color-shadow);
        padding: var(--spacing-medium) 0;
        border-top: 1px solid var(--color-border);
    }
    .main-navigation .nav-links.is-open {
        display: flex; /* Show when menu is open */
    }
    .main-navigation .nav-links li {
        width: 100%;
        text-align: center;
    }
    .main-navigation .nav-links a {
        padding: var(--spacing-medium) var(--spacing-large);
        display: block;
        width: 100%;
    }
    .main-navigation .nav-links a::after {
        transform-origin: center; /* Adjust for centered text */
    }
    .menu-toggle {
        display: block; /* Show hamburger on mobile */
    }

    .hero-content h1 { font-size: 2.2rem; }
    .hero-content p { font-size: 1.1rem; }

    .footer-content {
        text-align: center;
    }
    .footer-column {
        margin-bottom: var(--spacing-large);
    }
    .footer-column:last-child {
        margin-bottom: 0;
    }
}