/* ==========================================================================
   Base & Variables
   ========================================================================== */
:root {
   /* Colors - Neutral & Premium */
   --bg-primary: #FAF9F6; /* Warm Off-White / Ivory */
   --bg-secondary: #F3EFEA; /* Soft Beige / Light Taupe */
   --text-primary: #2C2C2C; /* Dark Charcoal */
   --text-secondary: #5C5C5C; /* Medium Gray */
   --accent-color: #C1A68D; /* Muted Gold / Champagne */
   --accent-hover: #AB927A; 
   --border-color: #E2DCD3; /* Warm Grey */
   --white: #ffffff;

   /* Typography */
   --font-primary: 'Inter', sans-serif;
   --font-serif: 'Playfair Display', serif;
   
   /* Spacing */
   --section-padding-large: 10rem 0;
   --section-padding-medium: 6rem 0;
   
   /* Layout */
   --container-width: 1200px;
   --border-radius-sm: 8px;
   --border-radius: 16px;
   
   /* Transitions */
   --transition-fast: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
   --transition-medium: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* ==========================================================================
   Typography & Utilities
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.2;
    color: var(--text-primary);
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.pt-pb-large {
    padding: var(--section-padding-large);
}

.text-center {
    text-align: center;
}

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

/* Subtle underline for section titles */
.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -12px;
    width: 60px;
    height: 1px;
    background-color: var(--accent-color);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-block;
    padding: 1.1rem 2.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 50px;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

.btn-primary:hover {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(193, 166, 141, 0.2);
}

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

.btn-secondary:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border-color: var(--text-primary);
    padding: 0.85rem 2rem;
}

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

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(252, 252, 252, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 0;
    transition: padding var(--transition-fast);
}

.navbar.scrolled {
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    font-size: 1.5rem;
    font-family: var(--font-serif);
    font-weight: 600;
    letter-spacing: -0.5px;
}

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

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

.nav-links .nav-btn {
    background-color: var(--text-primary);
    color: var(--bg-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.85rem;
}

.nav-links .nav-btn:hover {
    background-color: var(--accent-color);
    color: var(--white);
}

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

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.mobile-menu-btn .bar {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-fast);
}

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

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

.hero-greeting {
    display: block;
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.hero-title {
    font-size: clamp(3rem, 5vw, 4.5rem);
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 2rem;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    line-height: 1.8;
}

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

/* ==========================================================================
   About Section
   ========================================================================== */
.about-content {
    max-width: 800px;
}

.about-text {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

/* ==========================================================================
   Projects Section
   ========================================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 4rem;
}

.project-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
}

.project-image {
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    background-color: var(--bg-secondary);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: transform 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.project-card:hover .project-image img {
    transform: scale(1.08);
}

.project-info {
    padding: 2.5rem;
}

.project-type {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-color);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.project-name {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    font-family: var(--font-serif);
}

.project-desc {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1rem;
    line-height: 1.7;
}

/* ==========================================================================
   Skills Section
   ========================================================================== */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.25rem;
    max-width: 900px;
    margin: 0 auto;
}

.skill-item {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    background-color: var(--white);
    border: 1px solid var(--border-color);
    padding: 0.85rem 1.75rem;
    border-radius: 50px;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.skill-item:hover {
    border-color: var(--accent-color);
    background-color: var(--accent-color);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(193, 166, 141, 0.2);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 6rem;
    background: var(--white);
    padding: 4rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03);
    border: 1px solid var(--border-color);
}

.contact-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-links li {
    display: flex;
    align-items: center;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 500;
}

.contact-link svg {
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.contact-link:hover svg {
    color: var(--text-primary);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1.15rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--bg-primary);
    transition: all var(--transition-fast);
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(193, 166, 141, 0.1);
}

.form-submit {
    align-self: flex-start;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 900px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

/* ==========================================================================
   Project Detail Pages
   ========================================================================== */
.project-header {
    padding-top: 180px;
    padding-bottom: 6rem;
    background-color: var(--bg-secondary);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.project-overview {
    text-align: center;
    max-width: 800px;
    margin: 4rem auto;
}

.project-overview .section-title {
    margin-bottom: 2rem;
}

.project-overview-text {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.project-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
    margin: 4rem 0 6rem;
    padding: 4rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 30px rgba(0,0,0,0.03);
    border: 1px solid var(--border-color);
}

.meta-item h4 {
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-color);
    margin-bottom: 1rem;
    font-family: var(--font-primary);
    font-weight: 600;
}

.meta-item p, .meta-item ul {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.meta-item ul {
    list-style-type: none;
}

.meta-item ul li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
}

.meta-item ul li::before {
    content: '•';
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-size: 1.5rem;
    line-height: 1;
    top: -2px;
}

.gallery-section {
    padding: 8rem 0;
}

.gallery-grid {
    display: flex;
    flex-direction: column;
    gap: 6rem;
    align-items: center;
}

.gallery-item {
    width: 100%;
}

.gallery-item img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    background-color: var(--bg-secondary);
}

/* ==========================================================================
   Device Mockups
   ========================================================================== */
.live-demo-section {
    padding: 8rem 0;
    background-color: var(--white);
    border-top: 1px solid var(--border-color);
}

.demo-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    max-width: 1400px;
    margin: 4rem auto 0;
}

.demo-desktop-wrapper {
    flex: 2;
    min-width: 60%;
}

.demo-mobile-wrapper {
    flex: 1;
    max-width: 320px;
}

.demo-label {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 500;
}

/* Laptop Mockup */
.laptop-mockup {
    position: relative;
    width: 100%;
    margin: 0 auto;
    background: #EBEBEB;
    border-radius: 24px 24px 0 0;
    padding: 2.5% 2.5% 3.5% 2.5%;
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
}

.laptop-mockup::after {
    content: '';
    position: absolute;
    bottom: -5%;
    left: -5%;
    width: 110%;
    height: 6%;
    background: #D1D1D1;
    border-radius: 8px 8px 16px 16px;
    z-index: 1;
}

.laptop-mockup::before {
    content: '';
    position: absolute;
    bottom: -4%;
    left: 50%;
    transform: translateX(-50%);
    width: 15%;
    height: 2%;
    background: #B4B4B4;
    border-radius: 4px 4px 0 0;
    z-index: 2;
}

.laptop-mockup .screen {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
    background: #000;
    border-radius: 8px;
    overflow: hidden;
}

.laptop-mockup iframe,
.laptop-mockup video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    object-fit: cover;
}

/* Mobile Mockup */
.phone-mockup {
    position: relative;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    background: #2C2C2C;
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.15);
    border: 2px solid #5C5C5C;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40%;
    height: 25px;
    background: #2C2C2C;
    border-radius: 0 0 16px 16px;
    z-index: 2;
}

.phone-mockup .screen {
    position: relative;
    width: 100%;
    padding-top: 216.53%; /* Approx 9:19.5 Aspect Ratio */
    background: #000;
    border-radius: 32px;
    overflow: hidden;
}

.phone-mockup iframe,
.phone-mockup video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    object-fit: cover;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1024px) {
    .demo-grid {
        flex-direction: column;
        gap: 6rem;
    }
    
    .demo-desktop-wrapper, .demo-mobile-wrapper {
        width: 100%;
        max-width: 800px;
    }
    
    .demo-mobile-wrapper {
        max-width: 320px; /* Keep phone size constrained even when stacked */
    }
}