/* ===================================
   Photographer Portfolio - Minimalist B&W
   =================================== */
:root {
    --black: #000000;
    --white: #FFFFFF;
    --gray-light: #F5F5F5;
    --gray-medium: #999999;
    --gray-dark: #333333;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--gray-dark);
    background: var(--white);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* ===================================
   Sidebar Navigation
   =================================== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 300px;
    height: 100vh;
    background: var(--black);
    color: var(--white);
    padding: 60px 40px;
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

.sidebar-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.logo {
    width: 60px;
    height: 60px;
    background: var(--white);
    color: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 30px;
}

.name {
    font-size: 1.8rem;
    font-weight: 300;
    letter-spacing: 2px;
    margin-bottom: 5px;
}

.tagline {
    font-size: 0.9rem;
    color: var(--gray-medium);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 60px;
}

.nav-menu {
    list-style: none;
    flex-grow: 1;
}

.nav-menu li {
    margin-bottom: 25px;
}

.nav-link {
    color: var(--gray-medium);
    font-size: 1.1rem;
    letter-spacing: 1px;
    position: relative;
    display: inline-block;
}

.nav-link::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 1px;
    background: var(--white);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
}

.nav-link.active::before,
.nav-link:hover::before {
    width: 12px;
}

.sidebar-footer {
    margin-top: auto;
}

.social {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 30px;
}

.social a {
    color: var(--gray-medium);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.social a:hover {
    color: var(--white);
}

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

/* Mobile Toggle */
.mobile-toggle {
    position: fixed;
    top: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background: var(--black);
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    z-index: 2000;
}

.mobile-toggle span {
    width: 20px;
    height: 2px;
    background: var(--white);
    transition: all 0.3s ease;
}

/* ===================================
   Main Content
   =================================== */
.main-content {
    margin-left: 300px;
}

/* Hero Section */
.hero-section {
    height: 100vh;
    position: relative;
}

.hero-image {
    width: 100%;
    height: 100%;
    position: relative;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
}

.hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 80px;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
    color: var(--white);
}

.hero-overlay h2 {
    font-size: 4rem;
    font-weight: 300;
    letter-spacing: -2px;
    margin-bottom: 15px;
}

.hero-overlay p {
    font-size: 1.3rem;
    letter-spacing: 2px;
    margin-bottom: 40px;
    color: var(--gray-light);
}

.cta-btn {
    display: inline-block;
    padding: 15px 40px;
    background: var(--white);
    color: var(--black);
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.cta-btn:hover {
    background: var(--black);
    color: var(--white);
    outline: 2px solid var(--white);
}

/* Services Section */
.services-section {
    padding: 100px 80px;
    background: var(--gray-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 60px;
}

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

.service-number {
    font-size: 3rem;
    font-weight: 100;
    color: var(--gray-medium);
    margin-bottom: 20px;
}

.service-box h3 {
    font-size: 1.3rem;
    font-weight: 400;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.service-box p {
    color: var(--gray-medium);
    font-size: 0.95rem;
}

/* Portfolio Section */
.portfolio-section {
    padding: 100px 80px;
}

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

.section-title h2 {
    font-size: 3rem;
    font-weight: 300;
    letter-spacing: -1px;
    margin-bottom: 10px;
}

.section-title p {
    color: var(--gray-medium);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 0.85rem;
}

/* Filter Buttons */
.filter-buttons {
    text-align: center;
    margin-bottom: 60px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--gray-dark);
    padding: 10px 30px;
    margin: 0 5px;
    cursor: pointer;
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 0.8rem;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
}

/* Masonry Grid */
.masonry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    grid-auto-flow: dense;
}

.masonry-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 1/1;
}

.masonry-item.tall {
    grid-row: span 2;
    aspect-ratio: 1/2;
}

.masonry-item.wide {
    grid-column: span 2;
    aspect-ratio: 2/1;
}

.masonry-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: all 0.5s ease;
}

.masonry-item:hover img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 100%);
    color: var(--white);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.masonry-item:hover .image-overlay {
    opacity: 1;
}

.image-overlay h4 {
    font-size: 1.2rem;
    font-weight: 400;
    margin-bottom: 5px;
}

.image-overlay p {
    font-size: 0.85rem;
    color: var(--gray-light);
}

/* About Section */
.about-section {
    padding: 100px 80px;
    background: var(--gray-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 100px;
    align-items: center;
}

.about-text h2 {
    font-size: 3rem;
    font-weight: 300;
    margin-bottom: 30px;
    letter-spacing: -1px;
}

.lead {
    font-size: 1.3rem;
    color: var(--gray-dark);
    margin-bottom: 25px;
    line-height: 1.8;
}

.about-text p {
    color: var(--gray-medium);
    line-height: 1.9;
    margin-bottom: 20px;
}

.credentials {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 50px;
}

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

.cred-number {
    font-size: 3rem;
    font-weight: 300;
    color: var(--black);
    margin-bottom: 10px;
}

.cred-label {
    font-size: 0.85rem;
    color: var(--gray-medium);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
}

/* Testimonials Section */
.testimonials-section {
    padding: 100px 80px;
    background: var(--black);
    color: var(--white);
    text-align: center;
}

.testimonials-section h2 {
    font-size: 3rem;
    font-weight: 300;
    margin-bottom: 60px;
    letter-spacing: -1px;
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
    max-width: 1400px;
    margin: 0 auto;
}

.testimonial {
    padding: 40px;
    border: 1px solid rgba(255,255,255,0.2);
}

.quote {
    font-size: 1.1rem;
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 30px;
    color: var(--gray-light);
}

.author strong {
    display: block;
    margin-bottom: 5px;
    font-weight: 400;
}

.author span {
    font-size: 0.85rem;
    color: var(--gray-medium);
    letter-spacing: 1px;
}

/* Contact Section */
.contact-section {
    padding: 100px 80px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 100px;
}

.contact-info h2 {
    font-size: 3rem;
    font-weight: 300;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.contact-intro {
    font-size: 1.1rem;
    color: var(--gray-medium);
    margin-bottom: 50px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.contact-item strong {
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gray-medium);
}

.contact-item a,
.contact-item span {
    font-size: 1.2rem;
    color: var(--black);
}

.contact-item a:hover {
    color: var(--gray-medium);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    padding: 18px 0;
    border: none;
    border-bottom: 1px solid var(--gray-medium);
    font-size: 1rem;
    font-family: inherit;
    background: transparent;
    transition: border-color 0.3s ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-bottom-color: var(--black);
}

.contact-form textarea {
    resize: vertical;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 3px;
}

.checkbox-label span {
    font-size: 0.9rem;
    color: var(--gray-medium);
}

.submit-btn {
    padding: 18px 40px;
    background: var(--black);
    color: var(--white);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: all 0.3s ease;
    align-self: flex-start;
}

.submit-btn:hover {
    background: var(--gray-dark);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1200px) {
    .main-content {
        margin-left: 250px;
    }

    .sidebar {
        width: 250px;
        padding: 40px 30px;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-slider {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 968px) {
    .main-content {
        margin-left: 0;
    }

    .sidebar {
        left: -300px;
        transition: left 0.3s ease;
    }

    .sidebar.active {
        left: 0;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero-overlay {
        padding: 40px;
    }

    .hero-overlay h2 {
        font-size: 2.5rem;
    }

    .services-section,
    .portfolio-section,
    .about-section,
    .contact-section,
    .testimonials-section {
        padding: 60px 30px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-content,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .credentials {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .masonry-grid {
        grid-template-columns: 1fr;
    }

    .masonry-item.wide,
    .masonry-item.tall {
        grid-column: auto;
        grid-row: auto;
        aspect-ratio: 1/1;
    }

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

    .filter-buttons {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    .filter-btn {
        flex: 1 1 auto;
        min-width: 100px;
    }
}