/* ==========================================================================
   AART Digital - Premium Editorial Landing Page
   ========================================================================== */

/* --- Variables & Roots --- */
:root {
    /* Colors */
    --color-primary: #5e19ea;      /* Purple */
    --color-secondary: #299acd;    /* Blue */
    --color-bg-dark: #0a0a0e;      /* Very Dark Blue/Black */
    --color-bg-light: #15151c;     /* Lighter Dark for cards */
    --color-text-main: #f0f0f5;
    --color-text-muted: #a0a0b0;
    --color-white: #ffffff;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-bg-dark);
    color: var(--color-text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
}

.highlight {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
    font-style: italic;
}

/* --- Layout --- */
.container {
    width: 90%;
    max-width: 1400px;
    margin: 0 auto;
}

.section {
    padding: var(--space-xl) 0;
    position: relative;
}

.center {
    text-align: center;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background: #4a13bd;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(94, 25, 234, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-main);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-text-main);
}

.btn-nav {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn-nav:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.btn.large {
    padding: 1.5rem 3rem;
    font-size: 1.2rem;
}

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: background-color var(--transition-fast), padding var(--transition-fast);
}

.site-header.scrolled {
    background-color: rgba(10, 10, 14, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-white);
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo span {
    font-family: var(--font-body);
    font-weight: 300;
    color: var(--color-text-muted);
    font-size: 1.2rem;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--color-text-main);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    transition: color var(--transition-fast);
}

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

.main-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}
.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-white);
    transition: 0.3s;
}

/* --- Section 1: Hero --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px; /* offset for header */
    position: relative;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr; /* 60/40 Asymmetry */
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(94, 25, 234, 0.1);
    color: var(--color-secondary);
    border: 1px solid rgba(41, 154, 205, 0.2);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 2rem;
}

.hero-title {
    font-size: clamp(3rem, 5vw, 5.5rem);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.trust-item .icon-check {
    color: var(--color-primary);
    font-weight: bold;
}

.hero-visual {
    position: relative;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    width: 100%;
    max-width: 600px;
    height: auto;
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 30px 50px rgba(0,0,0,0.5));
}

.glow-orb {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    filter: blur(100px);
    z-index: 1;
    opacity: 0.4;
}

.glow-orb.purple {
    background: var(--color-primary);
    top: 10%;
    right: 10%;
}

.glow-orb.blue {
    background: var(--color-secondary);
    bottom: 10%;
    left: 10%;
}
.glow-orb.large {
    width: 500px;
    height: 500px;
}

/* --- Section 2: Problem --- */
.section-header {
    max-width: 800px;
    margin: 0 auto 4rem;
    text-align: center;
}

.section-title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
}
.section-description {
    font-size: 1.1rem;
    color: var(--color-text-muted);
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.comparison-card {
    background: var(--color-bg-light);
    padding: 3rem;
    border: 1px solid rgba(255,255,255,0.05);
    position: relative;
}

.comparison-card.before {
    opacity: 0.8;
}

.comparison-card.after {
    background: linear-gradient(180deg, rgba(94, 25, 234, 0.05) 0%, var(--color-bg-light) 100%);
    border-top: 2px solid var(--color-primary);
}

.comparison-title {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--color-white);
}

.comparison-list {
    list-style: none;
}

.comparison-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.cross { color: #ff4d4d; font-weight: bold; }
.check { color: var(--color-secondary); font-weight: bold; }

.problem-conclusion {
    text-align: center;
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    background: rgba(41, 154, 205, 0.1);
    border-left: 4px solid var(--color-secondary);
}

/* --- Section 3: Audience --- */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 4rem;
}

.audience-card {
    padding: 2rem;
    background: var(--color-bg-light);
    border: 1px solid rgba(255,255,255,0.03);
    transition: var(--transition-fast);
}

.audience-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.02);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.audience-card h3 {
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}
.audience-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* --- Section 4: Services --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    padding: 2.5rem;
    border: 1px solid rgba(255,255,255,0.1);
    transition: var(--transition-fast);
}
.service-card:hover {
    background: rgba(94, 25, 234, 0.05);
    border-color: var(--color-primary);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-secondary);
}

.full-width {
    grid-column: 1 / -1;
    text-align: center;
    background: linear-gradient(90deg, rgba(94, 25, 234, 0.1), rgba(41, 154, 205, 0.1));
    border: none;
}

.alert-box {
    margin-top: 3rem;
    padding: 1.5rem;
    border: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

/* --- Section 5: Deliverables --- */
.deliverables {
    background-color: var(--color-bg-light);
}

.deliverables-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.deliverables-list {
    list-style: none;
    margin-top: 2rem;
}

.deliverables-list li {
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    position: relative;
    padding-left: 2rem;
}

.deliverables-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

.composition-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}
.deliverable-img {
    width: 100%;
    height: auto;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    z-index: 2;
    position: relative;
}

/* --- Section 6: Process --- */
.timeline {
    margin-top: 4rem;
    position: relative;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    height: 100%;
    width: 2px;
    background: rgba(255,255,255,0.1);
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: 3rem;
}

.timeline-number {
    position: absolute;
    left: 0;
    top: 0;
    width: 50px;
    height: 50px;
    background: var(--color-bg-dark);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--color-primary);
}

.timeline-content h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}
.timeline-content p {
    color: var(--color-text-muted);
}

/* --- Section 7: Value Comparison --- */
.value-comparison {
    background: linear-gradient(to bottom, var(--color-bg-dark), var(--color-bg-light));
}
.value-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: stretch;
    margin-top: 4rem;
}

.value-card {
    padding: 3rem;
    border: 1px solid rgba(255,255,255,0.1);
}

.value-card.negative {
    opacity: 0.6;
}
.value-card.positive {
    background: rgba(94, 25, 234, 0.05);
    border-color: var(--color-primary);
}

.value-card h3 {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 1.5rem;
    margin-bottom: 2rem;
}
.value-card ul {
    list-style: none;
}
.value-card li {
    margin-bottom: 1rem;
    display: flex;
    gap: 1rem;
}

.vs-badge {
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-style: italic;
    color: var(--color-text-muted);
}

/* --- Section 8: Portfolio --- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
    background: var(--color-bg-light);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

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

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(transparent, rgba(10, 10, 14, 0.9));
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition-smooth);
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-overlay h4 {
    margin-bottom: 0.2rem;
    font-size: 1.5rem;
}
.portfolio-overlay p {
    color: var(--color-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- Section 9: Differentials --- */
.diff-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 4rem;
}
.diff-card {
    padding: 2rem;
    border-left: 2px solid var(--color-secondary);
    background: var(--color-bg-light);
}
.diff-card h3 {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 1.2rem;
}
.diff-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.diff-highlight {
    margin-top: 4rem;
    text-align: center;
    font-style: italic;
    font-size: 1.8rem;
    color: var(--color-secondary);
}

/* --- Section 10: Extra Services --- */
.extra-services-wrapper {
    margin-top: 4rem;
    padding: 4rem;
    background: url('data:image/svg+xml;utf8,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></svg>') repeat;
    border: 1px solid rgba(255,255,255,0.05);
}
.extra-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    list-style: none;
}
.extra-list li {
    position: relative;
    padding-left: 1.5rem;
}
.extra-list li::before {
    content: '✦';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* --- Section 11: Testimonials --- */
.testimonials {
    background-color: var(--color-bg-light);
}
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}
.testimonial-card {
    padding: 3rem 2rem;
    border: 1px solid rgba(255,255,255,0.05);
    background: var(--color-bg-dark);
}
.stars {
    color: #ffb400;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}
.testimonial-text {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 2rem;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.author-avatar img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}
.author-info strong {
    display: block;
    font-weight: 500;
}
.author-info span {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* --- Section 12: FAQ --- */
.faq-accordion {
    max-width: 800px;
    margin: 4rem auto 0;
}
.faq-item {
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.faq-question {
    width: 100%;
    text-align: left;
    padding: 1.5rem 0;
    background: none;
    border: none;
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq-question:hover {
    color: var(--color-secondary);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}
.faq-answer p {
    padding-bottom: 1.5rem;
    color: var(--color-text-muted);
}
.faq-item.active .faq-answer {
    max-height: 200px;
}
.faq-item.active .faq-question .icon {
    transform: rotate(45deg);
}
.icon {
    transition: transform 0.3s;
    font-size: 1.5rem;
}

/* --- Section 13: Final CTA --- */
.cta-final {
    padding: var(--space-xl) 0;
    background: var(--color-bg-dark);
    position: relative;
    overflow: hidden;
}
.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(94, 25, 234, 0.1) 0%, var(--color-bg-dark) 70%);
}
.cta-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}
.cta-text {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    margin-bottom: 3rem;
}
.cta-support {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}
.cta-features {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    color: var(--color-secondary);
}
.cta-image-wrapper {
    position: relative;
}
.cta-image {
    width: 100%;
    height: auto;
    position: relative;
    z-index: 2;
    transform: translateY(-20px);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* --- Footer --- */
.site-footer {
    background: #050508;
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}
.brand-col p {
    color: var(--color-text-muted);
    margin: 1.5rem 0;
    max-width: 400px;
}
.footer-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    font-size: 0.8rem;
    text-transform: uppercase;
}
.footer-col h4 {
    font-family: var(--font-body);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}
.footer-col ul {
    list-style: none;
}
.footer-col li {
    margin-bottom: 0.8rem;
}
.footer-col a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.3s;
}
.footer-col a:hover {
    color: var(--color-white);
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 2rem;
}
.legal {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}
.legal-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    margin-left: 1.5rem;
}

/* --- Floating WhatsApp --- */
.floating-whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    z-index: 1000;
    transition: transform 0.3s, opacity 0.4s, visibility 0.4s;
}
.floating-whatsapp svg {
    width: 35px;
    height: 35px;
}
.floating-whatsapp:hover {
    transform: scale(1.1);
}
.floating-whatsapp.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

/* --- Animation Classes (Intersection Observer) --- */
.reveal-up, .reveal-left, .reveal-right {
    opacity: 0;
    transition: opacity 1s ease-out, transform 1s ease-out;
}
.reveal-up { transform: translateY(40px); }
.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }

.reveal-up.active, .reveal-left.active, .reveal-right.active {
    opacity: 1;
    transform: translate(0, 0);
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
    .hero-container, .deliverables-container, .cta-container {
        grid-template-columns: 1fr;
    }
    .hero-visual {
        order: -1; /* Image above text on mobile */
    }
    .hero {
        padding-top: 120px;
    }
    .diff-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .extra-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .comparison-grid, .services-grid, .portfolio-grid, .footer-container {
        grid-template-columns: 1fr;
    }
    .value-grid {
        grid-template-columns: 1fr;
    }
    .vs-badge {
        margin: 2rem 0;
    }
    .mobile-menu-toggle {
        display: flex;
    }
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--color-bg-dark);
        flex-direction: column;
        padding: 2rem;
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.4s ease-in-out;
    }
    .main-nav.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    .nav-list {
        flex-direction: column;
        width: 100%;
        text-align: center;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .diff-grid, .extra-list {
        grid-template-columns: 1fr;
    }
    .legal {
        flex-direction: column;
        gap: 1rem;
    }
}