/* --- Variables & Reset --- */
:root {
    --color-primary: #D32F2F;
    --color-primary-dark: #b71c1c;
    --color-secondary: #2E7D32;
    --color-orange: #F57C00;
    --color-purple: #7B1FA2;

    --color-bg-light: #ffffff;
    --color-bg-offset: #f8fafc;
    /* slate-50 */
    --color-text-main: #0f172a;
    /* slate-900 */
    --color-text-muted: #64748b;
    /* slate-500 */
    --color-text-light: #94a3b8;
    /* slate-400 */

    --color-border: #e2e8f0;

    --font-sans: 'Inter', sans-serif;
    --font-serif: 'Times New Roman', serif;
    /* Fallback for the italic part */

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    /* 8px */
    --radius-lg: 0.75rem;
    /* 12px */
    --radius-xl: 1rem;
    /* 16px */
    --radius-2xl: 1.5rem;
    /* 24px */

    --container-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text-main);
    background-color: var(--color-bg-light);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    padding-top: 75px;
    /* Prevent content jump from fixed header */
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

ul {
    list-style: none;
}

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

/* --- Utilities --- */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.text-gradient {
    background: linear-gradient(to right, var(--color-primary), var(--color-orange));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.text-red {
    color: var(--color-primary);
}

.text-green {
    color: var(--color-secondary);
}

.text-orange {
    color: var(--color-orange);
}

.text-purple {
    color: var(--color-purple);
}

.text-white {
    color: #fff;
}

.text-slate {
    color: var(--color-text-muted);
}

.bg-red-light {
    background-color: #fef2f2;
}

/* red-50 approx */
.bg-green-light {
    background-color: #f0fdf4;
}

/* green-50 approx */

.serif {
    font-family: var(--font-serif);
}

.italic {
    font-style: italic;
}

.bold {
    font-weight: 700;
}

.section {
    padding: 3rem 0;
}

@media (min-width: 768px) {
    .section {
        padding: 6rem 0;
    }
}

/* --- Components --- */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 700;
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    cursor: pointer;
    font-size: 0.95rem;
    border: none;
}

.btn--primary {
    background: linear-gradient(to right, var(--color-primary), #dc2626);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(211, 47, 47, 0.39);
}

.btn--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(211, 47, 47, 0.23);
}

.btn--outline {
    background: white;
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
}

.btn--outline:hover {
    background-color: var(--color-bg-offset);
}

.btn--lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn--block {
    width: 100%;
}

.btn--icon {
    gap: 0.5rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
}

.hero__badge {
    background-color: rgba(46, 125, 50, 0.1);
    color: var(--color-secondary);
    border: 1px solid rgba(46, 125, 50, 0.2);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    line-height: 1;
}

.logo__badge {
    background-color: var(--color-secondary);
    color: white;
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 2px 6px;
    border-radius: 2px;
}

.logo__text {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-top: -2px;
}

/* --- Header / Navbar --- */
/* --- Header / Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1rem 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-main);
}

.nav-link:hover {
    color: var(--color-primary);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-main);
    cursor: pointer;
    padding: 0.5rem;
    /* Touch target */
}

@media (max-width: 900px) {
    .nav-links {
        position: fixed;
        top: 73px;
        /* Just below header */
        left: 0;
        width: 100%;
        height: calc(100vh - 73px);
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        justify-content: center;
        /* Center vertically */
        align-items: center;
        padding: 2rem;

        /* Transition Properties */
        transform: translateY(-20px);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease-in-out;

        /* Design */
        backdrop-filter: blur(10px);
        gap: 2.5rem;
        z-index: 90;
    }

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

    .nav-link {
        font-size: 1.5rem;
        /* Larger font for mobile */
        font-weight: 700;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-cta {
        width: 80%;
        text-align: center;
        padding: 1rem;
        font-size: 1.1rem;
        margin-top: 1rem;
    }
}

/* --- Hero Section --- */
.hero {
    padding: 3rem 0 2rem;
    overflow: hidden;
}

.hero__visual {
    display: none;
}

.hero__container {
    display: grid;
    gap: 3rem;
}

@media (min-width: 900px) {
    .hero {
        padding: 4rem 0 6rem;
    }

    .hero__container {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }

    .hero__visual {
        display: block;
    }
}

.hero__title {
    font-size: 3rem;
    line-height: 1.1;
    font-weight: 900;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

@media (min-width: 768px) {
    .hero__title {
        font-size: 4rem;
    }
}

.hero__description {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
    max-width: 32rem;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}



.hero__image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    aspect-ratio: 5/4;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.hero__glow {
    position: absolute;
    inset: -20px;
    z-index: -1;
    background: linear-gradient(to top right, var(--color-orange), var(--color-purple));
    filter: blur(40px);
    opacity: 0.3;
    border-radius: var(--radius-xl);
}

/* --- Services Grid --- */
.section-header {
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    color: var(--color-text-main);
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
}

.services__grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .services__grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 1024px) {
    .services__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.service-card {
    background: white;
    border: 1px solid var(--color-border);
    padding: 2rem;
    border-radius: var(--radius-xl);
    transition: all 0.3s;
}

.service-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: rgba(211, 47, 47, 0.1);
    transform: translateY(-5px);
}

.service-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: transform 0.3s;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.card__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.card__text {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.link-arrow {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.link-arrow span {
    font-size: 1rem;
    transition: transform 0.2s;
}

.service-card:hover .link-arrow span {
    transform: translateX(4px);
}

/* --- Portfolio --- */

/* Filters */
.filters-container {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
    margin-top: 2rem;
}

.filter-btn {
    background: white;
    /* Changed from transparent to white */
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    padding: 0.6rem 1.5rem;
    /* Larger padding */
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.2s;
    text-transform: capitalize;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    /* Added shadow for pop */
}

.filter-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: #fff;
    transform: translateY(-2px);
    /* Slight lift */
    box-shadow: var(--shadow-md);
}

.filter-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(211, 47, 47, 0.3);
    transform: translateY(-1px);
}

.portfolio-grid {
    display: block;
    column-count: 1;
    column-gap: 1.5rem;
}

@media (min-width: 640px) {
    .portfolio-grid {
        column-count: 2;
    }
}

@media (min-width: 1024px) {
    .portfolio-grid {
        column-count: 4;
    }
}

.portfolio-item {
    break-inside: avoid;
    margin-bottom: 1.5rem;
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
    background: #e2e8f0;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

.portfolio-item img {
    width: 100%;
    display: block;
    transition: transform 0.5s;
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.4) 50%, transparent 100%);
    /* Stronger gradient */
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    opacity: 1;
    /* Always visible or opacity changes on hover? Kept 1 for legibility */
}

/* Specific Badge style inside overlay to ensure background */
.portfolio-overlay .badge {
    background: rgba(255, 255, 255, 0.95);
    color: var(--color-primary);
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    font-weight: 800;
    margin-bottom: 0.5rem;
    align-self: flex-start;
    /* Ensure it doesn't stretch */
}

.portfolio-overlay h3 {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    /* Better text contrast */
}

/* --- Downloads / Catalogs --- */
.badge-line {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.badge-line .line {
    width: 2rem;
    height: 2px;
}

.line.bg-red {
    background: var(--color-primary);
}

.downloads-layout {
    display: grid;
    gap: 2rem;
}

@media (min-width: 1024px) {
    .downloads-layout {
        grid-template-columns: 2fr 1fr;
        height: 600px;
    }
}

.viewer-container {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}

.viewer-main {
    flex: 1;
    background: #0f172a;
    position: relative;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.viewer-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.4;
    filter: blur(5px);
    transition: background-image 0.5s;
}

.viewer-overlay {
    position: relative;
    z-index: 10;
    text-align: center;
    color: white;
    padding: 2rem;
}

.viewer-preview-box {
    background: white;
    color: var(--color-text-muted);
    width: 120px;
    height: 160px;
    margin: 1rem auto 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-xl);
}

.viewer-footer {
    padding: 1.5rem;
    background: white;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.viewer-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

.catalogs-list {
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding-right: 1rem;
}

.catalog-item {
    background: white;
    padding: 1rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all 0.2s;
}

.catalog-item:hover {
    border-color: var(--color-text-light);
}

.catalog-item.active {
    border-color: var(--color-primary);
    border-width: 2px;
}

/* --- Process --- */
.process {
    position: relative;
    overflow: hidden;
    padding: 6rem 0;
}

/* Background Aura */
.process::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 60%;
    background: radial-gradient(circle, rgba(245, 124, 0, 0.03), rgba(123, 31, 162, 0.03), transparent 70%);
    filter: blur(60px);
    z-index: 0;
    pointer-events: none;
}

.process-steps {
    display: grid;
    gap: 3rem;
    position: relative;
    /* Context for absolute line */
    z-index: 1;
}

/* Connecting Line */
.process-line {
    display: none;
}

@media (min-width: 640px) {
    .process-steps {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 1024px) {
    .process-steps {
        grid-template-columns: repeat(4, 1fr);
        gap: 0;
        /* Let flex/centering handle spacing */
    }

    .process-line {
        display: block;
        position: absolute;
        top: 3rem;
        /* Half of icon height (6rem) */
        left: 12.5%;
        /* Start from center of first item (100% / 4 / 2) */
        right: 12.5%;
        /* End at center of last item */
        height: 2px;
        background: linear-gradient(to right, #ffe0b2, #ffcdd2, #e1bee7, #c8e6c9);
        z-index: -1;
    }
}

.step-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    padding: 0 1rem;
}

.step-icon {
    width: 6rem;
    height: 6rem;
    border-radius: 50%;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    z-index: 2;
    /* Above line */
}

/* Icon size inside circle */
.step-icon .material-symbols-outlined {
    font-size: 2.5rem;
}

.step-item:hover .step-icon {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 20px 35px -5px rgba(0, 0, 0, 0.15);
}

.step-title {
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    color: var(--color-text-main);
}

.step-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    max-width: 260px;
}

/* Specific Step Styles */
.border-orange .material-symbols-outlined {
    color: var(--color-orange);
}

.border-red .material-symbols-outlined {
    color: var(--color-primary);
}

.border-purple .material-symbols-outlined {
    color: var(--color-purple);
}

/* Last item: Solid Green */
.shadow-green {
    background-color: var(--color-secondary);
    box-shadow: 0 15px 30px -5px rgba(46, 125, 50, 0.3);
}

.shadow-green .material-symbols-outlined {
    color: white;
}

/* --- Footer --- */
.footer {
    background: var(--color-text-main);
    color: white;
    padding: 4rem 0;
    border-top: 4px solid var(--color-orange);
}

.footer__container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    align-items: center;
}

@media (min-width: 768px) {
    .footer__container {
        flex-direction: row;
        justify-content: space-between;
    }
}

.social-links {
    display: flex;
    gap: 1.5rem;
    font-size: 0.875rem;
    color: var(--color-text-light);
}

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

.copyright {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* --- Form --- */
.contact__grid {
    display: grid;
    gap: 4rem;
}

@media (min-width: 1024px) {
    .contact__grid {
        grid-template-columns: 1fr 1fr;
    }
}

.info-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: white;
    padding: 1rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-box {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    display: grid;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 700;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg-offset);
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(211, 47, 47, 0.1);
}

/* Custom Scrollbar */
.custom-scrollbar::-webkit-scrollbar {
    width: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 10px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* --- Lightbox --- */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: white;
    font-size: 2.5rem;
    cursor: pointer;
    transition: transform 0.2s;
    user-select: none;
}

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

.lightbox-caption {
    margin-top: 1.5rem;
    color: white;
    font-size: 1.25rem;
    font-weight: 600;
    text-align: center;
}

@media (max-width: 768px) {
    .lightbox {
        padding: 1rem;
    }

    .lightbox-close {
        top: 1rem;
        right: 1rem;
    }

    .lightbox-nav {
        width: 3.5rem;
        height: 3.5rem;
        font-size: 2rem;
    }

    .lightbox-prev {
        left: 0.5rem;
    }

    .lightbox-next {
        right: 0.5rem;
    }
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: none;
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 2100;
    backdrop-filter: blur(4px);
    user-select: none;
}

.lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.lightbox-prev {
    left: 2rem;
}

.lightbox-next {
    right: 2rem;
}