/* Table of Contents
------------------------------------------------------------
1.  CSS Variables (Root)
2.  Global Styles & Resets
3.  Utility Classes
4.  Component Styles (Buttons, Forms, Cards)
5.  Layout Styles (Header, Footer, Grid)
6.  Section Styles
7.  Page-Specific Styles
8.  Responsive Design (Media Queries)
------------------------------------------------------------ */

/* 1. CSS Variables (Root)
------------------------------------------------------------ */
:root {
    /* Color Palette - Monochrome */
    --primary-color: #222222; /* Darker gray for headings and key elements */
    --text-color: #333333; /* Main body text */
    --text-light: #555555; /* Lighter text for subtitles, etc. */
    --background-color: #FFFFFF;
    --background-light: #F8F9FA; /* A very light gray for alternating sections */
    --accent-color: #000000; /* Black for strong accents like buttons */
    --border-color: #DDDDDD;
    --white: #FFFFFF;
    --black: #000000;

    /* Typography */
    --font-heading: 'Archivo Black', sans-serif;
    --font-body: 'Roboto', sans-serif;

    /* Spacing */
    --section-padding: clamp(3rem, 8vw, 6rem);
    --container-width: 1200px;
    --container-padding: 1.5rem;

    /* Effects */
    --box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    --border-radius: 8px;
    --transition-speed: 0.3s ease;
}

/* 2. Global Styles & Resets
------------------------------------------------------------ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.7;
    overflow-x: hidden; /* Prevent horizontal scroll from animations */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    line-height: 1.3;
    margin-bottom: 1rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }

p {
    margin-bottom: 1rem;
    max-width: 75ch; /* Improve readability */
}

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

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

ul {
    list-style: none;
}

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

/* 3. Utility Classes
------------------------------------------------------------ */
.container {
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

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

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

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.section-title-left {
    text-align: left;
    margin-bottom: 1.5rem;
}

.section-subtitle {
    text-align: center;
    max-width: 800px;
    margin: -2rem auto 3rem;
    color: var(--text-light);
}

/* 4. Component Styles
------------------------------------------------------------ */

/* Buttons */
.button-primary, .button-secondary {
    display: inline-block;
    padding: 12px 28px;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    transition: all var(--transition-speed);
    transform: translateY(0);
}

.button-primary {
    background-color: var(--accent-color);
    color: var(--white);
    border-color: var(--accent-color);
}

.button-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    text-decoration: none;
}

.button-secondary {
    background-color: transparent;
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.button-secondary:hover {
    background-color: var(--accent-color);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    text-decoration: none;
}

/* Forms */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 1rem;
    background-color: var(--background-light);
    transition: border-color var(--transition-speed);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.form-group label {
    position: absolute;
    top: 15px;
    left: 15px;
    color: var(--text-light);
    pointer-events: none;
    transition: all var(--transition-speed);
}

.form-group input:focus + label,
.form-group textarea:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 10px;
    font-size: 0.8rem;
    color: var(--primary-color);
    background-color: var(--background-color);
    padding: 0 5px;
}
.contact-form .button-primary {
    align-self: flex-start;
}

/* Cards */
.card, .feature-card {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    display: flex;
    flex-direction: column;
    text-align: center;
    height: 100%;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.card-image {
    width: 100%;
    height: 200px; /* Fixed height for consistent card appearance */
    overflow: hidden;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-speed);
}

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

.card-content {
    padding: 1.5rem;
    flex-grow: 1; /* Allow content to fill the remaining space */
    display: flex;
    flex-direction: column;
    align-items: center; /* Center content horizontally */
}

.card-content h3 {
    margin-bottom: 0.75rem;
}

/* 5. Layout Styles
------------------------------------------------------------ */

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: top 0.3s;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-color);
    font-weight: 700;
    position: relative;
    padding: 5px 0;
}
.nav-link:hover { text-decoration: none; }

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-color);
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform var(--transition-speed);
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.nav-item .button-primary:hover {
    color: var(--white);
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--primary-color);
    transition: all 0.3s ease-in-out;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--background-light);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-family: var(--font-heading);
}

.footer-col p, .footer-col a {
    color: var(--border-color);
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col a:hover {
    color: var(--white);
    text-decoration: underline;
}

.social-links-text li a {
    font-weight: bold;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid var(--text-light);
    padding-top: 2rem;
    font-size: 0.9rem;
}

/* Grid Layouts */
.grid-two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

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

/* 6. Section Styles
------------------------------------------------------------ */

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    padding: 0 var(--container-padding);
}

.hero-content {
    max-width: 900px;
}

.hero-title {
    color: var(--white);
    text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: var(--white);
    opacity: 0.9;
}

/* Methodology Section */
.methodology-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.step-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: grid;
    place-items: center;
    background-color: var(--accent-color);
    color: var(--white);
    border-radius: 50%;
    font-family: var(--font-heading);
    font-size: 1.5rem;
}

/* Success Stories (Slider) */
.slider-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    overflow: hidden;
}

.slider {
    display: flex;
    transition: transform var(--transition-speed);
}

.slide {
    min-width: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    position: absolute;
    top: 0;
    left: 0;
}
.slide.active {
    opacity: 1;
    position: relative;
}

.slide blockquote {
    font-size: 1.2rem;
    font-style: italic;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.slide cite {
    font-weight: 700;
    font-style: normal;
    color: var(--primary-color);
}

.slider-controls {
    margin-top: 1.5rem;
}

.slider-controls button {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    color: var(--primary-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    margin: 0 0.5rem;
    font-size: 1.5rem;
    transition: all var(--transition-speed);
}
.slider-controls button:hover {
    background: var(--accent-color);
    color: var(--white);
    border-color: var(--accent-color);
}

/* Partners Section */
.partners-logo-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 3rem;
}

.partner-logo img {
    max-height: 50px;
    width: auto;
    filter: grayscale(100%);
    opacity: 0.6;
    transition: all var(--transition-speed);
}

.partner-logo img:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* External Resources */
.resource-list {
    max-width: 800px;
    margin: 0 auto;
}
.resource-list li {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}
.resource-list li:last-child {
    border-bottom: none;
}
.resource-list a {
    font-weight: bold;
    font-size: 1.1rem;
}

/* 7. Page-Specific Styles
------------------------------------------------------------ */

/* Success Page */
body.success-page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.success-container {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--container-padding);
}
.success-content h1 {
    color: var(--primary-color);
}
.success-content p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* Privacy & Terms Pages */
.static-page-content {
    padding-top: 120px; /* Header height + buffer */
    padding-bottom: var(--section-padding);
}

.static-page-content h1 {
    margin-bottom: 2rem;
}

.static-page-content h2 {
    margin-top: 2.5rem;
}

/* 8. Responsive Design
------------------------------------------------------------ */

/* Tablet */
@media (max-width: 992px) {
    .grid-two-columns {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .grid-two-columns .column-image {
        order: -1; /* Image appears above text on mobile */
    }
    .section-title-left {
        text-align: center;
    }
    .contact-wrapper {
        text-align: center;
    }
    .contact-form .button-primary {
        align-self: center;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px; /* Below header */
        flex-direction: column;
        background-color: var(--background-color);
        width: 100%;
        height: calc(100vh - 80px);
        text-align: center;
        transition: 0.3s;
        gap: 2rem;
        padding-top: 2rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-item {
        margin: 16px 0;
    }

    .hamburger {
        display: block;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    .features-grid, .services-grid {
        grid-template-columns: 1fr;
    }
}