/* ==========================================================================
   CSS Variables & Base Reset
   ========================================================================== */
:root {
    /* Color Palette: Navy Blue & Yellow on White Theme */
    --color-bg: #FFFFFF;
    --color-surface: #F8F9FA;
    --color-surface-hover: #E9ECEF;
    --color-text: #0C1E36;
    --color-text-muted: #4A5568;
    --color-accent: #FBB03B; /* Yellow Gold */
    --color-accent-hover: #FFC96B; /* Lighter Gold */
    --color-dark-border: #E2E8F0;

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Layout */
    --container-width: 1200px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-text);
    margin-bottom: 1rem;
    font-weight: 700;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 5%;
}

/* ==========================================================================
   Buttons & Utilities
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-text);
    border: 2px solid var(--color-accent);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-text);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-dark-border);
}

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

/* ==========================================================================
   Background Animation
   ========================================================================== */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: radial-gradient(circle at 50% 50%, #1a1506 0%, #0a0a0a 100%);
    opacity: 0.8;
}

.bg-animation::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"><filter id="noiseFilter"><feTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/></filter><rect width="100%" height="100%" filter="url(%23noiseFilter)"/></svg>');
    opacity: 0.04;
    mix-blend-mode: overlay;
    pointer-events: none;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 24px 0;
    z-index: 100;
    transition: var(--transition);
    background-color: transparent;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 16px 0;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-dark-border);
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.navbar.scrolled .logo,
.navbar.scrolled .nav-links a,
.navbar.scrolled .menu-toggle {
    color: var(--color-text);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: #fff;
}

.logo span {
    color: var(--color-accent);
}

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

.nav-links a {
    color: #fff;
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--color-accent);
    transition: var(--transition);
}

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 10;
    color: #fff;
}

.hero-subtitle {
    color: var(--color-accent);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards 0.2s;
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5.5rem);
    line-height: 1.1;
    margin-bottom: 30px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards 0.4s;
    color: #fff;
}

.hero-title span {
    font-style: italic;
    color: var(--color-accent);
}

.hero-desc {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    max-width: 600px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards 0.6s;
}

.hero-actions {
    display: flex;
    gap: 20px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards 0.8s;
}

.hero-actions .btn-outline {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-actions .btn-outline:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.hero-actions .btn-primary:hover {
    color: #fff;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .menu-toggle {
        display: block;
    }
    .hero-actions {
        flex-direction: column;
    }
    .btn {
        width: 100%;
    }
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
section {
    padding: 100px 0;
}

#process, #testimonials {
    padding: 60px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #ffffff;
    max-width: 600px;
    margin: 0 auto;
}

#pricing .section-subtitle {
    color: #000000;
}

/* ==========================================================================
   Portfolio Section
   ========================================================================== */
.portfolio-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 40px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--color-dark-border);
    color: #ffffff;
    padding: 8px 20px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--color-accent);
    color: #000;
    border-color: var(--color-accent);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.portfolio-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    height: 350px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.portfolio-img {
    width: 100%;
    height: 100%;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.portfolio-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-overlay h3 {
    color: #fff;
    font-size: 1.5rem;
    margin-bottom: 5px;
    transform: translateY(20px);
    transition: var(--transition);
}

.portfolio-overlay p {
    color: var(--color-accent);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transform: translateY(20px);
    transition: var(--transition);
    transition-delay: 0.1s;
}

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

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover .portfolio-overlay h3,
.portfolio-item:hover .portfolio-overlay p {
    transform: translateY(0);
}

/* ==========================================================================
   Modal (Case Study)
   ========================================================================== */
.modal {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.95);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    backdrop-filter: blur(5px);
}

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

.modal-content {
    background: var(--color-surface);
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    border-radius: 12px;
    overflow-y: auto;
    position: relative;
    border: 1px solid var(--color-dark-border);
    transform: translateY(50px);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.modal.active .modal-content {
    transform: translateY(0);
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    color: var(--color-text);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 10;
    transition: color 0.3s;
}

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

.modal-body {
    padding: 40px;
}

.modal-title {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.modal .tags { margin-bottom: 30px; }

.modal .category {
    background: rgba(212, 175, 55, 0.1);
    color: var(--color-accent);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.modal-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.mt-4 { margin-top: 2rem; }

/* Before/After Slider */
.ba-slider {
    position: relative;
    width: 100%;
    height: 400px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--color-dark-border);
}

.ba-img {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.2rem;
}

.ba-before {
    width: 50%;
    border-right: 2px solid var(--color-accent);
}

.ba-slider-input {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    opacity: 0;
    cursor: col-resize;
    z-index: 5;
}

.ba-slider-line {
    position: absolute;
    top: 0; left: 50%; height: 100%; width: 2px;
    background: var(--color-accent);
    pointer-events: none;
    z-index: 4;
}

.ba-slider-button {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 40px; height: 40px;
    background: var(--color-accent);
    color: #000;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
}

.process-box {
    background: var(--color-surface-hover);
    padding: 30px;
    border-radius: 8px;
}

.process-list li {
    padding: 12px 0;
    border-bottom: 1px solid var(--color-dark-border);
    display: flex;
    align-items: center;
    gap: 15px;
}

.process-list li:last-child {
    border-bottom: none;
}

.process-list i {
    color: var(--color-accent);
}

@media (max-width: 900px) {
    .modal-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--color-surface);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--color-dark-border);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-accent);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.1);
}

.service-icon {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 25px;
}

.service-price {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
}

.service-price span {
    color: var(--color-accent);
    font-size: 1.2rem;
    display: block;
    margin-top: 5px;
}

/* ==========================================================================
   Pricing Calculator
   ========================================================================== */
.pricing-calculator {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    background: var(--color-bg);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--color-dark-border);
}

.calc-options h3 {
    margin-bottom: 20px;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.radio-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.radio-card input {
    display: none;
}

.radio-card .card-content {
    display: flex;
    flex-direction: column;
    padding: 20px;
    border: 1px solid var(--color-dark-border);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.radio-card input:checked + .card-content {
    border-color: var(--color-accent);
    background: rgba(212, 175, 55, 0.05);
}

.card-title {
    font-weight: 600;
    margin-bottom: 5px;
}

.card-price {
    color: var(--color-accent);
    font-weight: 700;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.checkbox-line {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    border: 1px solid var(--color-dark-border);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.checkbox-line input {
    margin-right: 15px;
    accent-color: var(--color-accent);
    width: 18px; height: 18px;
}

.checkbox-line:hover {
    border-color: var(--color-accent);
}

.summary-box {
    background: var(--color-surface);
    padding: 30px;
    border-radius: 8px;
    top: 100px;
    position: sticky;
    border: 1px solid var(--color-accent);
}

.summary-box h3 {
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.total-price {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 15px;
    font-family: var(--font-heading);
}

.summary-note {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.payment-btn {
    width: 100%;
    justify-content: flex-start;
    padding-left: 30px;
}

.payment-btn i {
    margin-right: 15px;
    font-size: 1.2rem;
}

@media (max-width: 900px) {
    .pricing-calculator {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Client Brief Form Section
   ========================================================================== */
.brief-form-container {
    background: var(--color-surface);
    padding: 50px;
    border-radius: 12px;
    border: 1px solid var(--color-dark-border);
    position: relative;
    overflow: hidden;
}

.form-step {
    display: none;
    animation: fadeIn 0.4s ease;
}

.form-step.active {
    display: block;
}

.form-step h3 {
    margin-bottom: 25px;
    color: var(--color-accent);
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.input-group {
    margin-bottom: 20px;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.input-group input, 
.input-group select, 
.input-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--color-bg);
    border: 1px solid var(--color-dark-border);
    border-radius: 6px;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

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

.form-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ==========================================================================
   Design Process Section
   ========================================================================== */
.process-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    position: relative;
}

.process-item {
    text-align: center;
    position: relative;
    padding: 20px;
}

.process-icon {
    width: 80px; height: 80px;
    background: rgba(212, 175, 55, 0.1);
    color: var(--color-accent);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem;
    margin: 0 auto 20px;
    border: 1px solid var(--color-accent);
    transition: var(--transition);
}

.process-item:hover .process-icon {
    background: var(--color-accent);
    color: #000;
}

.process-item h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.process-item p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ==========================================================================
   Testimonials Section
   ========================================================================== */
.testimo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.testimo-card {
    background: var(--color-surface);
    padding: 40px;
    border-radius: 8px;
    border: 1px solid var(--color-dark-border);
    position: relative;
}

.quote-icon {
    color: var(--color-accent);
    font-size: 2rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.testimo-text {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 25px;
    color: var(--color-text);
}

.testimo-author h4 {
    margin-bottom: 2px;
    font-size: 1.1rem;
}

.testimo-author span {
    color: var(--color-accent);
    font-size: 0.85rem;
    text-transform: uppercase;
}

/* ==========================================================================
   About & Contact
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skills-tags span {
    background: var(--color-bg);
    border: 1px solid var(--color-dark-border);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.contact-item {
    font-size: 1.2rem;
    font-weight: 500;
}

.contact-item i {
    color: var(--color-accent);
    margin-right: 10px;
}

/* ==========================================================================
   Floating Buttons
   ========================================================================== */
.float-btn {
    position: fixed;
    bottom: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    z-index: 1000;
    transition: transform 0.3s;
}

.float-btn:hover {
    transform: translateY(-5px);
    color: #fff;
}

.float-whatsapp {
    right: 30px;
    background-color: #25d366;
}

.float-call {
    right: 100px;
    background-color: var(--color-accent);
    color: #000;
}

.float-call:hover {
    color: #000;
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    .brief-form-container {
        padding: 30px 20px;
    }
    .form-actions {
        flex-direction: column;
        gap: 15px;
    }
    .form-actions .btn {
        width: 100%;
    }
    .float-call {
        bottom: 100px;
        right: 30px;
    }
}

/* Footer Fix */
footer .logo {
    color: var(--color-text);
}

@media (max-width: 900px) {
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

/* ==========================================================================
   Scroll Animations
   ========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

/* Staggered delays for grids */
.services-grid .service-card:nth-child(2) { transition-delay: 0.1s; }
.services-grid .service-card:nth-child(3) { transition-delay: 0.2s; }
.services-grid .service-card:nth-child(4) { transition-delay: 0.3s; }

.process-timeline .process-item:nth-child(2) { transition-delay: 0.1s; }
.process-timeline .process-item:nth-child(3) { transition-delay: 0.2s; }
.process-timeline .process-item:nth-child(4) { transition-delay: 0.3s; }