/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Portfolio Refined */
    --color-bg-primary: #0f0f0f;
    --color-bg-secondary: #1a1a1a;
    --color-bg-card: #1e1e1e;
    --color-accent-primary: #ffd700;
    --color-accent-secondary: #ffb700;
    --color-text-primary: #ffffff;
    --color-text-secondary: #d0d0d0;
    --color-text-muted: #909090;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #ffd700 0%, #ffb700 100%);
    --gradient-overlay: linear-gradient(to bottom, rgba(15, 15, 15, 0.2), rgba(15, 15, 15, 0.95));
    --gradient-card: linear-gradient(145deg, #1e1e1e 0%, #181818 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-xxl: 8rem;

    /* Typography */
    --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Montserrat', 'Poppins', sans-serif;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px rgba(255, 215, 0, 0.2);
    --shadow-glow-strong: 0 0 60px rgba(255, 215, 0, 0.4);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 800;
}

h2 {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
}

p {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.75rem 0;
    transition: all var(--transition-medium);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(15, 15, 15, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
    padding: 1.25rem 0;
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: transform var(--transition-fast);
    letter-spacing: 0.05em;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-glow);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
    align-items: center;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    position: relative;
    letter-spacing: 0.02em;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-medium);
}

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

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

.btn-primary {
    background: var(--gradient-primary);
    color: #000;
    padding: 0.875rem 2.25rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all var(--transition-medium);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-glow);
    letter-spacing: 0.03em;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-strong);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--color-text-primary);
    border-radius: 3px;
    transition: all var(--transition-fast);
}

/* ============================================
   HERO SECTION - PORTFOLIO FOCUSED
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 10rem 3rem 6rem;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
    filter: grayscale(20%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(15, 15, 15, 0.5), rgba(15, 15, 15, 0.85));
    z-index: 1;
}

.hero-content {
    max-width: 1600px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.hero-text {
    max-width: 100%;
}

.hero-text h1 {
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease;
    line-height: 1.1;
}

.hero-text h1 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-top: 0.5rem;
}

.hero-text p {
    font-size: 1.35rem;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease 0.2s both;
    color: var(--color-text-secondary);
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    padding: 0.875rem 2.25rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    border: 2px solid var(--color-accent-primary);
    transition: all var(--transition-medium);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    letter-spacing: 0.03em;
}

.btn-secondary:hover {
    background: var(--color-accent-primary);
    color: #000;
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.hero-image {
    position: relative;
    animation: fadeInRight 0.8s ease 0.3s both;
}

.hero-image img {
    width: 100%;
    border-radius: 0;
    box-shadow: var(--shadow-lg);
    display: block;
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    margin-bottom: 1.25rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-header p {
    font-size: 1.2rem;
    margin-top: 2rem;
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features {
    padding: var(--spacing-xxl) 3rem;
    background: var(--color-bg-primary);
}

.container {
    max-width: 1600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.feature-card {
    background: var(--gradient-card);
    padding: 3rem 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: all var(--transition-medium);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-medium);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card:hover {
    transform: translateY(-12px);
    border-color: rgba(255, 215, 0, 0.3);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 2rem;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    transition: transform var(--transition-medium);
    box-shadow: var(--shadow-glow);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    margin-bottom: 1.25rem;
    color: var(--color-text-primary);
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--spacing-xxl) 3rem;
    background: var(--color-bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 45% 1fr;
    gap: 5rem;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.about-image {
    position: relative;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    background: var(--gradient-primary);
    border-radius: 0;
    z-index: 0;
    opacity: 0.15;
}

.about-image img {
    width: 100%;
    border-radius: 0;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
    display: block;
}

.about-text h2 {
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.about-text h2 span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-top: 0.5rem;
}

.about-text p {
    margin-bottom: 1.75rem;
    line-height: 1.9;
    font-size: 1.1rem;
}

.about-text .btn-primary {
    margin-top: 1rem;
}

/* ============================================
   PORTFOLIO SECTION - ENHANCED
   ============================================ */
.portfolio {
    padding: var(--spacing-xxl) 3rem;
    background: var(--color-bg-primary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(450px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.portfolio-item {
    position: relative;
    border-radius: 0;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 16/11;
    background: var(--color-bg-card);
    transition: transform var(--transition-medium);
}

.portfolio-item:hover {
    transform: translateY(-8px);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
    filter: brightness(0.85);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(15, 15, 15, 0), rgba(15, 15, 15, 0.95));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2.5rem;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

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

.portfolio-item:hover img {
    transform: scale(1.08);
    filter: brightness(1);
}

.portfolio-overlay h3 {
    color: var(--color-text-primary);
    margin-bottom: 0.75rem;
    font-size: 1.75rem;
}

.portfolio-overlay p {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

.play-button {
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    font-size: 1.75rem;
    color: #000;
    transition: all var(--transition-medium);
    opacity: 0;
    box-shadow: var(--shadow-glow-strong);
}

.portfolio-item:hover .play-button {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials {
    padding: var(--spacing-xxl) 3rem;
    background: var(--color-bg-secondary);
}

.testimonials-slider {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.testimonial-card {
    background: var(--gradient-card);
    padding: 4rem 3.5rem;
    border-radius: 24px;
    text-align: center;
    display: none;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.testimonial-card.active {
    display: block;
    animation: fadeIn 0.6s ease;
}

.testimonial-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    margin: 0 auto 2rem;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.25rem;
    font-weight: 800;
    color: #000;
    box-shadow: var(--shadow-glow);
}

.testimonial-text {
    font-size: 1.35rem;
    font-style: italic;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    line-height: 1.9;
    font-weight: 400;
}

.testimonial-author {
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.15rem;
}

.testimonial-role {
    color: var(--color-text-muted);
    font-size: 1rem;
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 3rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.dot:hover {
    background: var(--color-accent-secondary);
}

.dot.active {
    background: var(--color-accent-primary);
    width: 40px;
    border-radius: 6px;
    box-shadow: var(--shadow-glow);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--spacing-xxl) 3rem;
    background: var(--color-bg-primary);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(255, 215, 0, 0.05), transparent);
    pointer-events: none;
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.contact-content h2 {
    margin-bottom: 1.5rem;
}

.contact-content p {
    margin-bottom: 3rem;
    font-size: 1.25rem;
}

.contact-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: 4rem 3rem 2.5rem;
    background: var(--color-bg-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-content {
    max-width: 1600px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3.5rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.footer-section p {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 44px;
    height: 44px;
    background: var(--color-bg-card);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.social-link:hover {
    background: var(--gradient-primary);
    color: #000;
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--color-text-muted);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1200px) {
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    }
}

@media (max-width: 968px) {
    .hero {
        padding: 8rem 2rem 4rem;
    }

    .nav-container {
        padding: 0 2rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-image {
        order: -1;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-image {
        order: -1;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 400px;
        height: 100vh;
        background: rgba(15, 15, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 7rem 2.5rem 2rem;
        transition: right var(--transition-medium);
        align-items: flex-start;
        gap: 2rem;
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
    }

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

    .menu-toggle {
        display: flex;
        z-index: 1001;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(9px, 9px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -8px);
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 640px) {
    .hero {
        padding: 7rem 1.5rem 3rem;
    }

    .nav-container {
        padding: 0 1.5rem;
    }

    .features,
    .about,
    .portfolio,
    .testimonials,
    .contact {
        padding: 4rem 1.5rem;
    }

    .hero-buttons,
    .contact-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        text-align: center;
        justify-content: center;
    }

    .section-header {
        margin-bottom: 3rem;
    }

    .testimonial-card {
        padding: 3rem 2rem;
    }

    .testimonial-text {
        font-size: 1.15rem;
    }

    .footer-content {
        gap: 2.5rem;
    }
}