/* ==========================================================================
   1. CSS Variables & Root Styles
   ========================================================================== */

:root {
    /* Color Scheme */
    --primary-color: #0055FF; /* Vibrant Blue */
    --primary-color-dark: #003CC7;
    --secondary-color: #FFB800; /* Accent Gold/Yellow */
    --text-color: #222222;
    --text-light: #FFFFFF;
    --background-light: #F4F6F8;
    --background-dark: #1a1a1a;
    --card-background: #FFFFFF;
    --border-color: #222222;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-color-strong: rgba(0, 0, 0, 0.25);
    --gradient-start: #E9F1FF;
    --gradient-end: #FFFFFF;

    /* Typography */
    --font-heading: 'Raleway', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --header-weight-bold: 900;
    --header-weight-regular: 700;

    /* Spacing & Sizing */
    --base-spacing: 1rem;
    --container-width: 1200px;
    --header-height: 80px;

    /* Animations */
    --transition-bouncy: cubic-bezier(0.68, -0.6, 0.27, 1.65);
    --transition-duration: 0.4s;
}

/* ==========================================================================
   2. Global Styles & Reset
   ========================================================================== */

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

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

body {
    font-family: var(--font-body);
    color: var(--text-color);
    background-color: var(--background-light);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.main-container {
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 calc(var(--base-spacing) * 1.5);
    width: 100%;
}

/* ==========================================================================
   3. Typography
   ========================================================================== */

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: var(--header-weight-bold);
    color: var(--text-color);
    line-height: 1.2;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--base-spacing);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: calc(var(--base-spacing) * 2);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    margin-bottom: var(--base-spacing);
    font-weight: var(--header-weight-regular);
}

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

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

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

.section-title {
    text-align: center;
    margin-bottom: calc(var(--base-spacing) * 3);
}

/* ==========================================================================
   4. Layout & Grid (Bulma-like columns)
   ========================================================================== */

.columns {
    display: flex;
    flex-wrap: wrap;
    margin-left: -0.75rem;
    margin-right: -0.75rem;
    margin-top: -0.75rem;
}

.columns.is-vcentered {
    align-items: center;
}

.columns.is-multiline {
    flex-wrap: wrap;
}

.column {
    display: block;
    flex-basis: 0;
    flex-grow: 1;
    flex-shrink: 1;
    padding: 0.75rem;
}

.column.is-one-third {
    flex: none;
    width: 33.3333%;
}

.column.is-two-thirds {
    flex: none;
    width: 66.6666%;
}

/* ==========================================================================
   5. Components
   ========================================================================== */

/* Buttons */
.btn {
    display: inline-block;
    font-family: var(--font-heading);
    font-weight: var(--header-weight-regular);
    padding: 12px 28px;
    border: 2px solid var(--border-color);
    background-color: var(--secondary-color);
    color: var(--text-color);
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    font-size: 1rem;
    transition: transform var(--transition-duration) var(--transition-bouncy), 
                box-shadow var(--transition-duration) var(--transition-bouncy);
    box-shadow: 4px 4px 0 0 var(--border-color);
}

.btn:hover {
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 0 var(--border-color);
}

.btn:active {
    transform: translate(4px, 4px);
    box-shadow: 0 0 0 0 var(--border-color);
}

.btn.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
}

/* Forms */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: calc(var(--base-spacing) * 1.5);
}

.form-field input,
.form-field textarea {
    width: 100%;
    padding: 15px;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 2px solid var(--border-color);
    background-color: var(--background-light);
    transition: box-shadow var(--transition-duration) var(--transition-bouncy);
}

.form-field input:focus,
.form-field textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--secondary-color);
}

/* Cards */
.card {
    background-color: var(--card-background);
    border: 2px solid var(--border-color);
    box-shadow: 6px 6px 0 -2px var(--shadow-color-strong), 6px 6px 0 0 var(--border-color);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform var(--transition-duration) var(--transition-bouncy), 
                box-shadow var(--transition-duration) var(--transition-bouncy);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 10px 10px 0 -2px var(--shadow-color-strong), 10px 10px 0 0 var(--border-color);
}

.card .card-image {
    width: 100%;
    height: 220px; /* Fixed height for image container */
    overflow: hidden;
}

.card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Ensures image covers the area without distortion */
    display: block;
}

.card .card-content {
    padding: calc(var(--base-spacing) * 1.5);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Toggle Switch */
.toggle-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: calc(var(--base-spacing) * 2);
}
.toggle-label { margin-left: var(--base-spacing); font-weight: 600; }
.switch { position: relative; display: inline-block; width: 60px; height: 34px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; border: 2px solid var(--border-color); transition: .4s; }
.slider:before { position: absolute; content: ""; height: 26px; width: 26px; left: 2px; bottom: 2px; background-color: white; border: 2px solid var(--border-color); transition: .4s var(--transition-bouncy); }
input:checked + .slider { background-color: var(--primary-color); }
input:checked + .slider:before { transform: translateX(26px); }
.slider.round { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }
.toggle-content { display: none; }
.toggle-content.active { display: block; }

/* ==========================================================================
   6. Header & Footer
   ========================================================================== */

/* Header */
.site-header {
    background: var(--text-light);
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 0 var(--base-spacing);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: var(--header-weight-bold);
    color: var(--text-color);
}

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

.navbar-links {
    list-style: none;
    display: flex;
    gap: calc(var(--base-spacing) * 2);
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: var(--header-weight-regular);
    color: var(--text-color);
    padding: 5px 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-duration) var(--transition-bouncy);
}

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

.navbar-burger { display: none; } /* Hidden on desktop */

/* Footer */
.site-footer {
    background-color: var(--background-dark);
    color: var(--text-light);
    padding: calc(var(--base-spacing) * 3) 0;
    border-top: 4px solid var(--primary-color);
}

.site-footer h4 {
    color: var(--text-light);
    margin-bottom: var(--base-spacing);
}

.site-footer p, .site-footer a {
    color: #ccc;
}

.site-footer a:hover {
    color: var(--text-light);
}

.site-footer ul {
    list-style: none;
}

.site-footer ul li {
    margin-bottom: calc(var(--base-spacing) / 2);
}

.footer-bottom {
    text-align: center;
    margin-top: calc(var(--base-spacing) * 2);
    padding-top: calc(var(--base-spacing) * 2);
    border-top: 1px solid #444;
    font-size: 0.9rem;
}

/* ==========================================================================
   7. Section Styles
   ========================================================================== */

/* Hero Section */
.hero-section {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: calc(100vh - var(--header-height));
    padding: calc(var(--base-spacing) * 2);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--text-light); /* Enforced by strict rules */
}

.hero-content h1 {
    color: inherit;
    font-weight: var(--header-weight-bold);
}
.hero-content p {
    color: inherit;
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto calc(var(--base-spacing) * 2) auto;
}

/* Content Sections */
.content-section {
    padding: calc(var(--base-spacing) * 4) 0;
}

.content-section-gradient {
    padding: calc(var(--base-spacing) * 4) 0;
    background-image: linear-gradient(to bottom, var(--gradient-start), var(--gradient-end));
    border-top: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
}

.image-container.volumetric-shadow {
    border: 2px solid var(--border-color);
    box-shadow: 8px 8px 0 var(--shadow-color-strong);
    overflow: hidden;
}
.image-container img {
    display: block;
    width: 100%;
    height: auto;
}

/* Carousel */
.carousel-container { position: relative; }
.carousel-track { display: flex; overflow: hidden; }
.carousel-slide { min-width: 100%; transition: transform 0.5s ease; }
.carousel-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.7);
    border: 2px solid var(--border-color);
    color: var(--text-color);
    font-size: 2rem;
    cursor: pointer;
    width: 50px;
    height: 50px;
    z-index: 10;
}
.carousel-button.prev { left: 10px; }
.carousel-button.next { right: 10px; }

/* Projects */
.project-card .card-image {
    height: 250px;
}

/* Blog */
.read-more {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    display: inline-block;
    margin-top: auto;
    padding-top: var(--base-spacing);
}

/* Sustainability & Press */
.press-list {
    list-style: none;
    padding-left: 0;
}
.press-list li {
    padding: 10px;
    border-bottom: 1px dashed #ccc;
}
.press-list li a {
    font-weight: 600;
}

/* External Resources */
.external-links-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--base-spacing);
    margin-top: var(--base-spacing);
}
.external-link {
    display: block;
    padding: 15px 25px;
    background-color: var(--card-background);
    border: 2px solid var(--border-color);
    box-shadow: 4px 4px 0 var(--border-color);
    font-weight: 600;
    transition: all var(--transition-duration) var(--transition-bouncy);
}
.external-link:hover {
    background-color: var(--secondary-color);
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0 var(--border-color);
}

/* Contact Section */
.contact-info p {
    margin-bottom: calc(var(--base-spacing) * 1.5);
}
.contact-info strong {
    color: var(--text-color);
}
.map-container {
    margin-top: calc(var(--base-spacing) * 3);
    border: 2px solid var(--border-color);
    line-height: 0; /* remove gap under image */
}
.map-container img {
    width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================================
   8. Page-Specific Styles
   ========================================================================== */
   
/* Success Page */
.success-page-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
    background-color: var(--gradient-start);
}
.success-message-box {
    background-color: var(--card-background);
    padding: calc(var(--base-spacing) * 3);
    border: 2px solid var(--border-color);
    box-shadow: 8px 8px 0 var(--border-color);
    max-width: 500px;
}
.success-message-box p {
    margin-bottom: calc(var(--base-spacing) * 2);
}

/* Legal Pages */
.legal-page {
    padding-top: calc(var(--header-height) + 40px); /* Avoid header overlap */
    padding-bottom: 40px;
}

.legal-page .container {
    max-width: 800px;
}

.legal-page h2 {
    margin-top: calc(var(--base-spacing) * 2);
    margin-bottom: var(--base-spacing);
    font-size: 1.5rem;
    border-bottom: 2px solid #eee;
    padding-bottom: 5px;
}

/* ==========================================================================
   9. Media Queries (Responsive Design)
   ========================================================================== */

/* Tablets */
@media (max-width: 992px) {
    .columns {
        display: block;
    }
    .column.is-one-third, .column.is-two-thirds {
        width: 100%;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .navbar-menu {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background-color: var(--card-background);
        border-bottom: 2px solid var(--border-color);
    }
    .navbar-menu.is-active {
        display: block;
    }
    .navbar-links {
        flex-direction: column;
        width: 100%;
        padding: var(--base-spacing);
        gap: 0;
    }
    .navbar-links li {
        width: 100%;
    }
    .nav-link {
        display: block;
        padding: var(--base-spacing);
        text-align: center;
        width: 100%;
    }
    .nav-link:hover {
        background-color: var(--background-light);
    }
    .nav-link::after {
        display: none;
    }
    .navbar-burger {
        display: block;
        cursor: pointer;
        border: none;
        background: transparent;
        width: 40px;
        height: 40px;
        position: relative;
    }
    .navbar-burger span {
        display: block;
        width: 25px;
        height: 3px;
        background-color: var(--border-color);
        margin: 5px auto;
        transition: all 0.3s ease-in-out;
    }
    .navbar-burger.is-active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .navbar-burger.is-active span:nth-child(2) {
        opacity: 0;
    }
    .navbar-burger.is-active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    .hero-section {
        min-height: 70vh;
    }
    h1 {
        font-size: 2rem;
    }
    h2 {
        font-size: 1.75rem;
    }
    .columns, .site-footer .columns {
        display: block;
    }
    .site-footer .column {
        margin-bottom: calc(var(--base-spacing) * 2);
    }
}