/* =========================================
   OLIV creative - CSS Stylesheet
   ========================================= */

/* -- CSS Variables -- */
:root {
    --clr-white: #ffffff;
    --clr-light: #f9f9f9;
    --clr-gray: #f4f4f4;
    --clr-black: #0a0a0a;
    --clr-black-light: #181818;
    --clr-accent: #c0a466; /* Gold/Beige replaces Yellow */
    --clr-accent-hover: #a88d55;
    
    --font-main: 'Montserrat', sans-serif;
    --transition: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* -- Reset & General -- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--clr-white);
    color: var(--clr-black);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    width: 88%;
    max-width: 1280px;
    margin: 0 auto;
}

section.section-padding {
    padding: 120px 0;
}

.text-center { text-align: center; }
.mt-2 { margin-top: 1rem; }
.mt-4 { margin-top: 2rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-section { margin-bottom: 80px; }
.mx-auto { margin-left: auto; margin-right: auto; }

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

p {
    color: #444;
    font-weight: 300;
    font-size: 1.1rem;
}

.lead-text {
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--clr-black);
}

.text-muted {
    font-size: 1rem;
    color: #666;
}

.max-width-text {
    max-width: 800px;
}

.highlight {
    color: var(--clr-accent);
}

.divider {
    width: 50px;
    height: 3px;
    background-color: var(--clr-accent);
    margin: 20px 0 30px;
    border-radius: 2px;
}

.divider.center {
    margin-left: auto;
    margin-right: auto;
}

/* -- Buttons -- */
.btn {
    display: inline-block;
    padding: 16px 36px;
    font-size: 0.95rem;
    font-weight: 500;
    border: none;
    border-radius: 0; /* Minimalist sharp edges */
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--clr-black);
    color: var(--clr-white);
}

.btn-primary:hover {
    background-color: var(--clr-accent);
    color: var(--clr-white);
}

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

.btn-outline:hover {
    background-color: var(--clr-black);
    color: var(--clr-white);
}

/* -- Header -- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 25px 0;
    z-index: 1000;
    transition: var(--transition);
    background-color: transparent;
}

header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 15px 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.05);
    backdrop-filter: blur(10px);
}

/* Text color logic inside header: we need black text if scrolled or if hero isn't dark enough */
header .nav-links a {
    color: var(--clr-white);
}

header.scrolled .nav-links a {
    color: var(--clr-black);
}

header .btn-outline {
    border-color: var(--clr-white);
    color: var(--clr-white);
}
header.scrolled .btn-outline {
    border-color: var(--clr-black);
    color: var(--clr-black);
}

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

.logo {
    display: flex;
    align-items: center;
}

.img-logo {
    height: 35px;
    filter: brightness(0) invert(1); /* white initially */
    transition: var(--transition);
}

header.scrolled .img-logo {
    filter: none; /* back to original (assuming original is dark/black) */
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 40px;
}

.nav-links a {
    text-decoration: none;
    font-weight: 400;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding-bottom: 5px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    background-color: var(--clr-accent);
    bottom: 0;
    left: 0;
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--clr-white);
    cursor: pointer;
}
header.scrolled .mobile-menu-btn {
    color: var(--clr-black);
}

/* -- Hero Section -- */
.hero {
    height: 100vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    color: var(--clr-white);
}

.hero-slides {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-position: center;
    background-size: cover;
    opacity: 0;
    transform: scale(1.02);
    transition: opacity 1.8s ease, transform 6s ease;
    will-change: opacity, transform;
}

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

.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to right, rgba(10,10,10,0.8), rgba(10,10,10,0.3));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

/* Hover swap (mono -> color) */
.hover-swap {
    position: relative;
    width: 100%;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
}

.hover-swap img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 0;
    box-shadow: none;
    filter: none;
    transform: none;
    transition: opacity 0.8s ease;
}

.hover-swap-hover {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
}

.hover-swap:hover .hover-swap-hover {
    opacity: 1;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 300;
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero h1 span.highlight {
    font-weight: 600;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    max-width: 600px;
    color: rgba(255,255,255,0.9);
}

/* -- Split Grid (Used in multiple sections) -- */
.split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.split-grid.reverse {
    /* Using DOM order or CSS order depending on standard */
}

@media(min-width: 993px) {
    .split-grid.reverse .text-content { order: 2; }
    .split-grid.reverse .image-content { order: 1; }
}

.text-content h2 {
    font-size: 3rem;
    font-weight: 300;
}

.image-content img {
    width: 100%;
    height: auto;
    border-radius: 4px; /* minimal curve */
    box-shadow: 0 20px 40px rgba(0,0,0,0.06);
    filter: grayscale(20%);
    transition: var(--transition);
}

.image-content:hover img {
    filter: grayscale(0%);
    transform: scale(1.02);
}

.img-aesthetic img {
    aspect-ratio: 4/5;
    object-fit: cover;
}

/* Values List */
.values-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.values-list li {
    font-size: 1.1rem;
    color: #444;
    font-weight: 300;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.values-list li i {
    margin-top: 5px;
    font-size: 0.9rem;
}

/* -- Footer -- */
footer {
    background-color: var(--clr-black);
    color: var(--clr-white);
    padding: 80px 0 30px;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    margin-bottom: 50px;
}

.footer-logo {
    height: 40px;
    filter: brightness(0) invert(1);
    margin-bottom: 20px;
}

.footer-brand p {
    color: #999;
    max-width: 400px;
    margin: 0 auto;
}

.footer-socials {
    display: flex;
    gap: 20px;
}

.footer-socials a {
    color: var(--clr-white);
    font-size: 1.5rem;
    transition: var(--transition);
}

.footer-socials a:hover {
    color: var(--clr-accent);
    transform: translateY(-5px);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    color: #666;
    font-size: 0.9rem;
}

/* -- Interactivity & Animations -- */
.reveal, .reveal-mission {
    opacity: 0;
    visibility: hidden;
}

.reveal.active, .reveal-mission.active {
    opacity: 1;
    visibility: visible;
}

.fade-up {
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease, visibility 0.8s;
}

.fade-left {
    transform: translateX(-40px);
    transition: opacity 0.8s ease, transform 0.8s ease, visibility 0.8s;
}

.fade-right {
    transform: translateX(40px);
    transition: opacity 0.8s ease, transform 0.8s ease, visibility 0.8s;
}

.reveal.active.fade-up,
.reveal.active.fade-left,
.reveal.active.fade-right {
    transform: translate(0);
}

/* Custom Animation for Mission (faster title, smooth desc) */
.title-fast {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.desc-slow {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1.2s cubic-bezier(0.2, 0.8, 0.2, 1) 0.3s, transform 1.2s cubic-bezier(0.2, 0.8, 0.2, 1) 0.3s;
}

.reveal-mission.active .title-fast {
    opacity: 1;
    transform: translateY(0);
}

.reveal-mission.active .desc-slow {
    opacity: 1;
    transform: translateY(0);
}

/* -- Modal Overlay (WhatsApp Form) -- */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.modal.show {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
}

.modal-content {
    background-color: var(--clr-white);
    width: 90%;
    max-width: 600px;
    padding: 50px;
    border-radius: 4px;
    position: relative;
    transform: translateY(-30px) scale(0.95);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 25px 50px rgba(0,0,0,0.3);
}

.modal.show .modal-content {
    transform: translateY(0) scale(1);
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 28px;
    font-weight: 300;
    color: #999;
    cursor: pointer;
    transition: color 0.3s ease;
    line-height: 1;
}

.close-modal:hover {
    color: var(--clr-black);
}

.modal-header {
    text-align: center;
    margin-bottom: 40px;
}

.modal-header h2 {
    font-size: 2rem;
    font-weight: 300;
}

.modal-header p {
    color: #666;
    font-size: 1rem;
    margin-top: 10px;
}

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

.contact-form .row {
    display: flex;
    gap: 20px;
}

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

.contact-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--clr-black-light);
}

.contact-form input,
.contact-form select {
    width: 100%;
    padding: 16px;
    border: 1px solid #ddd;
    border-radius: 2px;
    font-family: inherit;
    font-size: 1rem;
    background-color: var(--clr-light);
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form select:focus {
    outline: none;
    border-color: var(--clr-accent);
    background-color: var(--clr-white);
}

.btn-whatsapp {
    width: 100%;
    background-color: #25D366;
    color: #fff;
    font-size: 1rem;
    letter-spacing: 1px;
    padding: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
    cursor: pointer;
    border: none;
    text-transform: uppercase;
    font-weight: 600;
    transition: var(--transition);
}

.btn-whatsapp:hover {
    background-color: #1ebe57;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.2);
}

.btn-email {
    width: 100%;
    background-color: var(--clr-black);
    color: #fff;
    font-size: 1rem;
    letter-spacing: 1px;
    padding: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
    cursor: pointer;
    border: none;
    text-transform: uppercase;
    font-weight: 600;
    transition: var(--transition);
}

.btn-email:hover {
    background-color: var(--clr-accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.contact-success {
    margin-top: 30px;
    text-align: center;
}

.contact-success h3 {
    font-weight: 500;
    margin-bottom: 10px;
}

.contact-success p {
    color: #666;
    margin-bottom: 10px;
}

.hidden {
    display: none;
}

.contact-form input.error,
.contact-form select.error {
    border-color: #e63946;
    background-color: #fff5f5;
}

/* -- Responsiveness -- */
@media(max-width: 992px) {
    .split-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .nav-links, header .btn-outline {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
}

@media(max-width: 768px) {
    section.section-padding {
        padding: 80px 0;
    }
    .hero h1 {
        font-size: 2.8rem;
    }
    .contact-form .row {
        flex-direction: column;
        gap: 0;
    }
    .text-content h2 {
        font-size: 2.3rem;
    }
}