/* ====== GLOBAL VARIABLES & RESET ====== */
:root {
    --bg-color: #0d0d0f;
    --card-bg: #141416;
    --card-hover: #1c1c1f;
    --accent-color: #00FF66;
    --accent-hover: #00e65c;
    --text-primary: #ffffff;
    --text-secondary: #a0a0ab;
    --border-color: #2a2a2d;
    
    --font-heading: 'Syne', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

/* ====== TYPOGRAPHY & UTILITIES ====== */
h1, h2, h3, h4, .logo {
    font-family: var(--font-heading);
    text-transform: none; /* Changed for new Portuguese design which uses sentence case */
    font-weight: 700;
}

/* Ensure the top header logo remains all caps if needed, but in new design "Zalud" is title case */
.logo {
    text-transform: none;
}

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

.badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--accent-color);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.section-title {
    font-size: min(5vw, 3.5rem);
    letter-spacing: -0.02em;
    margin-bottom: 3rem;
    line-height: 1;
}

/* ====== PRELOADER ====== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.loader-logo {
    font-size: 2.5rem;
    color: var(--text-primary);
    letter-spacing: 0.1em;
    animation: pulse 1.5s infinite alternate;
    text-transform: uppercase;
}

.loading-bar {
    width: 150px;
    height: 2px;
    background-color: var(--border-color);
    position: relative;
    overflow: hidden;
}

.loading-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 40%;
    background-color: var(--accent-color);
    animation: loading 1s infinite ease-in-out;
}

@keyframes pulse {
    0% { opacity: 0.5; }
    100% { opacity: 1; text-shadow: 0 0 20px rgba(0, 255, 102, 0.4); }
}

@keyframes loading {
    0% { left: -40%; }
    100% { left: 100%; }
}

/* ====== BUTTONS ====== */
.btn {
    display: inline-block;
    padding: 0.8rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #000;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 255, 102, 0.2);
}

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

.btn-outline:hover {
    border-color: var(--text-primary);
}

/* ====== HEADER ====== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 5%;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(13, 13, 15, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: padding var(--transition), background-color var(--transition), box-shadow var(--transition);
}

.logo {
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    font-weight: 700;
}

.nav {
    display: flex;
    gap: 2.5rem;
}

.nav a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.nav a:hover, .nav a.active {
    color: var(--text-primary);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

/* ====== HERO SECTION ====== */
.hero {
    position: relative;
    padding: 12rem 5% 8rem;
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -2;
    transform: translate(-50%, -50%);
    object-fit: cover;
    filter: grayscale(80%) contrast(1.2); /* Stylize the placeholder video to match the dark theme */
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(8, 8, 10, 0.7) 0%, rgba(13, 13, 15, 1) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-size: min(7vw, 5.5rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 3rem;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

/* ====== FEATURES SECTION ====== */
.features-section {
    padding: 5rem 5%;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform var(--transition), border-color var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.icon-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(0, 255, 102, 0.1);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ====== PORTFOLIO SECTION ====== */
.portfolio {
    padding: 5rem 5%;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 3rem;
}

.section-header .section-title {
    margin-bottom: 0;
}

.view-all {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.875rem;
    transition: color var(--transition);
}

.view-all:hover {
    color: #fff;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: transform var(--transition);
    border: 1px solid var(--border-color);
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.1);
}

.card-wide {
    grid-column: span 8;
}

.card-tall {
    grid-column: span 4;
}

.card-square {
    grid-column: span 4;
}

.card-wide .card-img-wrapper {
    height: 400px;
}
.card-tall .card-img-wrapper {
    height: 400px;
}
.card-square .card-img-wrapper {
    height: 350px;
}

.card-img-wrapper {
    width: 100%;
    overflow: hidden;
    background: linear-gradient(135deg, #121f18 0%, #0d1214 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.dashboard-wrap {
    padding: 2rem;
    background: #e2e2e2;
}

.dashboard-wrap img {
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

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

.card-content {
    padding: 2rem;
}

.card-tags {
    margin-bottom: 1rem;
    display: flex;
    gap: 1rem;
}

.tag {
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--accent-color);
    letter-spacing: 0.1em;
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
}

.card-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ALIGNMENTS FOR CARDS IN 12-COL GRID */
.portfolio-grid .card-square:nth-child(3) {
    grid-column: span 4;
}
.portfolio-grid .card-wide:nth-child(4) {
    grid-column: span 8;
}


/* ====== CONTACT SECTION ====== */
.contact-section {
    padding: 8rem 5% 5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    border-top: 1px solid var(--border-color);
}

.contact-title {
    font-size: min(6vw, 5rem);
    line-height: 0.9;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.contact-desc {
    color: var(--text-secondary);
    max-width: 450px;
    margin-bottom: 4rem;
    font-size: 1rem;
}

.agency-info {
    display: flex;
    gap: 4rem;
}

.info-label {
    display: block;
    font-size: 0.65rem;
    font-family: var(--font-heading);
    color: var(--text-secondary);
    margin-bottom: 1rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.info-value {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
}

.email-link:hover {
    color: var(--accent-color);
}

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

.social-flex a {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
}

.social-flex a:hover {
    color: var(--accent-color);
}

/* ====== CONTACT FORM ====== */
.contact-form {
    background-color: var(--card-bg);
    padding: 3rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.contact-form h3 {
    margin-bottom: 2rem;
    font-size: 1.25rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.input-group {
    position: relative;
    margin-bottom: 2rem;
}

.input-group input, 
.input-group textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 0.5rem 0;
    color: #fff;
    font-family: var(--font-body);
    font-size: 1rem;
}

.input-group input:focus, 
.input-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.input-group label {
    position: absolute;
    top: -15px;
    left: 0;
    font-size: 0.65rem;
    font-family: var(--font-heading);
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    pointer-events: none;
    transition: var(--transition);
}

.input-group input::placeholder, 
.input-group textarea::placeholder {
    color: transparent;
}

.input-group input:placeholder-shown + label,
.input-group textarea:placeholder-shown + label {
    top: 0.5rem;
    font-size: 1rem;
    color: var(--text-secondary);
    font-family: var(--font-body);
}

.input-group input:focus + label,
.input-group textarea:focus + label,
.input-group input:not(:placeholder-shown) + label,
.input-group textarea:not(:placeholder-shown) + label {
    top: -15px;
    font-size: 0.65rem;
    font-family: var(--font-heading);
    color: var(--accent-color);
}

.services-group {
    margin-bottom: 3rem;
}

.services-label {
    font-size: 0.65rem;
    font-family: var(--font-heading);
    color: var(--text-secondary);
    margin-bottom: 1rem;
    letter-spacing: 0.1em;
}

.service-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.pill {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}

.pill:hover {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

.pill.active {
    background-color: var(--accent-color);
    color: #000;
    border-color: var(--accent-color);
}

.submit-btn {
    width: 100%;
    margin-top: 1rem;
    text-transform: uppercase;
}

/* ====== SF OFFICE ====== */
.sf-office {
    display: flex;
    background-color: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.office-details {
    padding: 2rem;
    flex: 1;
}

.office-text h4 {
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
}

.office-text p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.view-map {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-color);
}

.office-img-wrapper {
    flex: 1;
    max-width: 250px;
}

.office-img-wrapper img {
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%) contrast(1.2);
}

/* ====== BOTTOM CTA ====== */
.bottom-cta {
    position: relative;
    padding: 8rem 5%;
    text-align: center;
    border-top: 1px solid var(--border-color);
    overflow: hidden;
    background-color: #08080a;
}

.cta-title {
    font-size: min(6vw, 4.5rem);
    margin-bottom: 2.5rem;
    position: relative;
    z-index: 2;
}

.cta-title em {
    font-style: italic;
    color: var(--accent-color);
}

.bottom-cta .btn {
    position: relative;
    z-index: 2;
}

.watermark {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-heading);
    font-size: min(25vw, 25rem);
    font-weight: 800;
    color: rgba(255, 255, 255, 0.02);
    z-index: 1;
    pointer-events: none;
    line-height: 0.7;
    white-space: nowrap;
}

/* ====== FOOTER ====== */
.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 5%;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-family: var(--font-heading);
    letter-spacing: 0.05em;
    background-color: var(--bg-color);
}

.footer-links {
    display: flex;
    gap: 2rem;
}

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

/* ====== RESPONSIVE ====== */
@media (max-width: 900px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .contact-section {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .card-wide, .card-tall, .card-square,
    .portfolio-grid .card-square:nth-child(3),
    .portfolio-grid .card-wide:nth-child(4) {
        grid-column: span 1;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .sf-office {
        flex-direction: column;
    }
    
    .office-img-wrapper {
        max-width: 100%;
        height: 200px;
    }
}

@media (max-width: 600px) {
    .nav {
        display: none;
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .agency-info {
        flex-direction: column;
        gap: 2rem;
    }
    
    .footer {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .hero-buttons {
        flex-direction: column;
    }
}

/* ====== ADVANCED INTERACTIVITY ====== */
.reveal-item {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

.reveal-item.active {
    opacity: 1;
    transform: translateY(0);
}

.header.scrolled {
    padding: 1rem 5%;
    background-color: rgba(8, 8, 10, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.feature-card, .card {
    transform-style: preserve-3d;
    perspective: 1000px;
}