/* Reset & Baseline */
:root {
    --color-bg-projects: #e5dfd3;
    --color-bg-enquire: #1b2920;
    --color-text-light: #ffffff;
    --color-text-dark: #2a2a2a;
    --color-subtext-enquire: #b5835a;
    --color-border-enquire: rgba(255, 255, 255, 0.2);
    --color-sage-dark: #3b4e3d;

    --font-heading: 'Playfair Display', serif;
    --font-body: 'Outfit', sans-serif;

    --transition-smooth: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: #000;
    color: var(--color-text-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 30px 40px;
    mix-blend-mode: normal;
    /* Removed difference to allow specific colors */
    transition: padding var(--transition-smooth), background-color var(--transition-smooth);
}

.site-header.scrolled {
    padding: 20px 40px;
    background-color: transparent;
    /* Made header transparent so white logo shows */
}

/* For the enquire section we might want the header to be white again */
body.in-enquire .site-header.scrolled {
    background-color: transparent;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 100%;
}

/* Dropdown Menu */
.menu-wrapper {
    position: relative;
    width: 60px;
    /* fixed width area to balance header */
}

.menu-btn {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
    color: var(--color-sage-dark);
    /* deep sage green */
}

.hamburger-line {
    display: block;
    width: 20px;
    height: 1px;
    background-color: currentColor;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-btn.active .hamburger-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.menu-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.menu-btn.active .hamburger-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

.dropdown-nav {
    position: absolute;
    top: 30px;
    left: 0;
    background-color: transparent;
    /* transparent menu */
    padding: 20px 0;
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    border-radius: 4px;
}

.site-header.scrolled .dropdown-nav {
    top: 40px;
}

body.in-enquire .site-header.scrolled .dropdown-nav {
    background-color: transparent;
}

.dropdown-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-nav ul {
    list-style: none;
}

.dropdown-nav a {
    display: block;
    padding: 10px 30px;
    font-size: 0.9rem;
    font-weight: 400;
    color: #ffffff;
    /* white text */
    letter-spacing: 0.5px;
    transition: opacity 0.2s;
    text-transform: uppercase;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    /* added shadow for legibility if transparent */
}

body.in-enquire .site-header.scrolled .dropdown-nav a {
    color: #ffffff;
}

.dropdown-nav a:hover {
    opacity: 0.7;
}

body.in-enquire .site-header.scrolled .dropdown-nav a:hover {
    opacity: 0.7;
}

/* Logo */
.logo {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 400;
    letter-spacing: 1px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    color: #ffffff;
    /* Finn needs to be white and stay white always */
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    /* improved visibility */
}

/* Work Link */
.work-link {
    font-size: 0.8rem;
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
    position: relative;
    width: 60px;
    text-align: right;
    color: var(--color-sage-dark);
    /* dark sage */
}

.work-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    right: 0;
    width: 0%;
    height: 1px;
    background-color: currentColor;
    transition: width 0.3s ease;
}

.work-link:hover::after {
    width: 100%;
}

/* --- Section 1: Home --- */
.home-section {
    position: relative;
    height: 100vh;
    min-height: 600px;
    width: 100%;
    overflow: hidden;
    background-color: #111;
}

.slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out, transform 6s linear;
    transform: scale(1.05);
    /* Slight zoom out effect */
}

.slide.active {
    opacity: 1;
    transform: scale(1);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0) 100%);
    z-index: 2;
    pointer-events: none;
}

.scroll-prompt {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-text-light);
    letter-spacing: 1px;
}

.scroll-prompt a {
    display: inline-block;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.scroll-prompt a:hover {
    transform: translateY(5px);
    opacity: 0.8;
}

/* --- Section 2: Projects --- */
.projects-section {
    background-color: var(--color-bg-projects);
    padding: 120px 5% 100px;
    text-align: center;
}

.section-heading {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 400;
    margin-bottom: 30px;
    color: var(--color-text-dark);
}

.section-subtext {
    font-size: 1rem;
    line-height: 1.8;
    color: #4a4a4a;
    font-weight: 300;
    max-width: 800px;
    margin: 0 auto 80px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

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

.project-image-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    margin-bottom: 15px;
    cursor: pointer;
    border-radius: 2px;
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.project-image-container:hover .project-image {
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-dark);
    font-family: var(--font-heading);
    font-size: 1.2rem;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.project-image-container:hover .image-overlay {
    opacity: 1;
}

.project-type {
    display: block;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
    color: #666;
}

.project-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 400;
    color: #111;
}

/* --- Section 3: Enquire --- */
.enquire-section {
    background-color: var(--color-bg-enquire);
    padding: 120px 5% 150px;
    color: var(--color-text-light);
    display: flex;
    justify-content: center;
}

.enquire-content {
    max-width: 600px;
    width: 100%;
    text-align: center;
}

.enquire-section .section-heading {
    color: var(--color-text-light);
}

.enquire-subtext {
    color: var(--color-subtext-enquire);
    margin-bottom: 60px;
}

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

.form-row {
    display: flex;
    gap: 30px;
}

.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-group.half {
    flex: 1;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
    color: rgba(255, 255, 255, 0.6);
}

.form-group label span {
    text-transform: lowercase;
    opacity: 0.6;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border-enquire);
    color: var(--color-text-light);
    font-family: var(--font-body);
    font-size: 1rem;
    padding: 8px 0;
    outline: none;
    border-radius: 0;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-bottom-color: var(--color-text-light);
}

.custom-select-wrapper {
    position: relative;
}

.custom-select-wrapper::after {
    content: '▼';
    font-size: 0.6rem;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: rgba(255, 255, 255, 0.6);
}

.form-group select {
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
}

/* To handle option styling in dark mode */
.form-group select option {
    background-color: var(--color-bg-enquire);
    color: var(--color-text-light);
}

.textarea-group label small {
    display: block;
    text-transform: none;
    margin-top: 3px;
    opacity: 0.7;
    font-size: 0.85em;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.submit-btn {
    background: transparent;
    border: 1px solid var(--color-border-enquire);
    color: var(--color-text-light);
    font-family: var(--font-body);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 12px 40px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 20px;
    border-radius: 2px;
}

.submit-btn:hover {
    background-color: var(--color-text-light);
    color: var(--color-bg-enquire);
}

/* --- Lightbox --- */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 40px;
    background: none;
    border: none;
    color: white;
    font-size: 3rem;
    cursor: pointer;
    line-height: 1;
    transition: transform 0.3s ease;
}

.lightbox-close:hover {
    transform: scale(1.1);
}

.lightbox-content {
    max-width: 90%;
    max-height: 90vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    width: 100%;
    height: 100%;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: scale(0.95);
    transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.lightbox.active .lightbox-content img {
    opacity: 1;
    transform: scale(1);
}

/* Lightbox Navigation Controls */
.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.4);
    color: var(--color-text-light);
    border: none;
    padding: 1rem;
    cursor: pointer;
    font-size: 2rem;
    transition: background var(--transition-smooth), color var(--transition-smooth);
    z-index: 105;
    border-radius: 4px;
    display: none;
    /* Shown via JS when gallery has > 1 image */
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(0, 0, 0, 0.8);
    color: var(--color-subtext-enquire);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

/* On smaller screens, adjust arrows */
@media (max-width: 1024px) {
    .lightbox-prev {
        left: 10px;
    }

    .lightbox-next {
        right: 10px;
    }
}

/* --- Submission Animation --- */
.submit-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-enquire);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.submit-animation.active {
    opacity: 1;
    visibility: visible;
}

.animation-text {
    font-family: var(--font-heading);
    font-size: 4rem;
    color: var(--color-text-light);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.submit-animation.active .animation-text {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .projects-grid {
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }

    .section-heading {
        font-size: 2rem;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .logo {
        font-size: 1.8rem;
    }

    .scroll-prompt {
        font-size: 1.5rem;
    }
}