/* 
    Premium Portfolio Design System
    Theme: Sky Blue
    Author: Antigravity AI
*/

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&display=swap');

:root {
    /* Color Palette */
    --bg-midnight: #0a1929;
    --surface-emerald: rgba(20, 60, 100, 0.7);
    --gold: #87ceeb;
    --gold-bright: #b0e0e6;
    --text-pure: #ffffff;
    --text-sage: #a8c5d8;
    --text-muted: rgba(255, 255, 255, 0.5);
    --glass-border: rgba(135, 206, 235, 0.2);
    
    /* Spacing & Misc */
    --nav-height: 80px;
    --container-width: 1100px;
    --transition-smooth: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-premium: 0 20px 50px rgba(0, 0, 0, 0.5);
}

/* Preloader */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--bg-midnight);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loader {
    width: 50px;
    height: 50px;
    border: 3px solid var(--surface-emerald);
    border-top: 3px solid var(--gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#preloader.fade-out {
    opacity: 0;
    pointer-events: none;
}

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

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

body {
    background-color: var(--bg-midnight);
    color: var(--text-sage);
    font-family: 'Montserrat', sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
    color: var(--text-pure);
    font-weight: 600;
}

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

ul {
    list-style: none;
}

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

/* Glassmorphism Utilities */
.glass {
    background: var(--surface-emerald);
    -webkit-backdrop-filter: blur(15px);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
}

/* Layout */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 100px 0;
}

/* Navigation */
header {
    height: var(--nav-height);
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: var(--transition-smooth);
}

header.scrolled {
    background: rgba(10, 25, 41, 0.9);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    height: 70px;
    border-bottom: 1px solid var(--glass-border);
}

nav {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    color: var(--gold);
    font-weight: 700;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-sage);
}

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

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--gold);
    cursor: pointer;
}

/* Scroll Animations Meta */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(135, 206, 235, 0.05) 0%, transparent 70%);
    z-index: -1;
}

.hero-content {
    max-width: 700px;
}

.hero-subtitle {
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 4px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: block;
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 2rem;
}

.hero h1 span {
    display: block;
    font-size: 1.2rem;
    font-family: 'Montserrat', sans-serif;
    color: var(--text-sage);
    font-weight: 400;
    margin-top: 1rem;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
}

/* Buttons */
.btn {
    padding: 1rem 2.5rem;
    border-radius: 5px;
    font-weight: 600;
    letter-spacing: 1px;
    font-size: 0.9rem;
    cursor: pointer;
    display: inline-block;
}

.btn-primary {
    background: var(--gold);
    color: var(--bg-midnight);
    border: 1px solid var(--gold);
}

.btn-primary:hover {
    background: var(--gold-bright);
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(212, 175, 55, 0.2);
}

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

.btn-outline:hover {
    background: rgba(212, 175, 55, 0.1);
    transform: translateY(-5px);
}

/* About Section */
.section-header {
    margin-bottom: 4rem;
}

.section-subtitle {
    color: var(--gold);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 0.5rem;
    display: block;
}

.section-title {
    font-size: 3rem;
}

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

.about-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.info-item h4 {
    font-family: 'Montserrat', sans-serif;
    color: var(--gold);
    font-size: 0.85rem;
    text-transform: uppercase;
    margin-bottom: 0.3rem;
}

.info-item p {
    color: var(--text-pure);
    font-weight: 500;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: 20px;
    filter: grayscale(20%);
    box-shadow: var(--shadow-premium);
}

.about-image::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border: 2px solid var(--gold);
    border-radius: 20px;
    z-index: -1;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    padding: 3rem 2rem;
    transition: var(--transition-smooth);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--gold);
        background: rgba(20, 60, 100, 0.9);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--gold);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-list {
    margin-top: 1rem;
}

.service-list li {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.service-list li::before {
    content: '→';
    color: var(--gold);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-box {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--gold);
    flex-shrink: 0;
}

.contact-box h4 {
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

.contact-form {
    padding: 3rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    color: var(--gold);
}

input, textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 8px;
    color: var(--text-pure);
    font-family: inherit;
    transition: var(--transition-smooth);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--gold);
    background: rgba(255, 255, 255, 0.05);
}

/* Footer */
footer {
    padding: 50px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.social-links a {
    font-size: 1.2rem;
    color: var(--text-sage);
}

.social-links a:hover {
    color: var(--gold);
    transform: translateY(-3px);
}

.copyright {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-image {
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    header {
        height: 70px;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }

    .menu-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 70%;
        background: rgba(5, 28, 20, 0.95);
        -webkit-backdrop-filter: blur(20px);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: 0.5s ease;
        z-index: 999;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        margin: 1.5rem 0;
    }

    .nav-links a {
        font-size: 1.2rem;
    }
}

/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    height: 350px;
    cursor: pointer;
}

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

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
        background: linear-gradient(to top, rgba(10, 25, 41, 0.9), transparent);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: var(--transition-smooth);
}

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

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-overlay h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.portfolio-overlay p {
    font-size: 0.85rem;
    color: var(--gold);
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.testimonial-card {
    padding: 2.5rem;
    border-bottom: 3px solid var(--gold);
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: 1.5rem;
}

.client-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.client-info img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--gold);
}

.client-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--gold);
    background: rgba(135, 206, 235, 0.1);
}

.client-info h4 {
    font-size: 1rem;
    margin-bottom: 0.1rem;
}

.client-info span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gold);
    color: var(--bg-midnight);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    background: var(--gold-bright);
}