/* 
   ======================================
   CSS VARIABLES & DESIGN TOKENS
   ====================================== 
*/
:root {
    /* Color Palette */
    --clr-dark: hsl(0, 0%, 12%);      /* Deepest Black */
    --clr-dark-mid: hsl(0, 0%, 24%);  /* Charcoal */
    --clr-light-mid: hsl(0, 0%, 64%); /* Grey */
    --clr-light: hsl(0, 0%, 96%);     /* Off-White */
    --clr-accent: hsl(35, 25%, 70%);  /* Dark Beige */

    /* Typography */
    --font-primary: 'Mulish', sans-serif;
    --font-accent: 'Fraunces', serif;

    /* Spacing & Grid */
    --grid-gap: 2rem;
    --container-padding: 4rem;
    --section-padding: 8rem;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--clr-light);
    color: var(--clr-dark);
    font-size: 1rem;
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    cursor: none; /* Hide default cursor for custom cursor */
}

/* Loader */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--clr-dark);
    color: var(--clr-light);
    z-index: 10001;
    display: flex;
    flex-direction: column;
    padding: var(--container-padding);
}

.loader-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto 1fr auto;
}

.loader-top-left {
    grid-column: 1;
    grid-row: 1;
    
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    overflow: hidden;
}

.loader-top-right {
    grid-column: 2;
    grid-row: 1;
    text-align: right;
    
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    overflow: hidden;
}

.loader-center {
    grid-column: 1 / -1;
    grid-row: 2;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.loader-percentage {
    font-size: clamp(6rem, 15vw, 20rem);
    line-height: 0.8;
}

.loader-bottom-left {
    grid-column: 1;
    grid-row: 3;
    align-self: end;
    
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    color: var(--clr-light-mid);
    overflow: hidden;
}

.loader-top-left span,
.loader-top-right span,
.loader-bottom-left span,
.loader-percentage {
    display: inline-block;
}

a, button {
    cursor: none;
}

/* Custom Cursor */
.custom-cursor {
    position: fixed;
    top: 0;
    left: 0;
    width: 24px;
    height: 24px;
    background-color: white;
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    mix-blend-mode: difference; /* Negative blend mode */
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1), height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.custom-cursor.hover {
    width: 80px;
    height: 80px;
}

/* Subtle noise texture overlay for a premium feel */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    background-image: url('data:image/svg+xml;utf8,%3Csvg viewBox=%220 0 200 200%22 xmlns=%22http://www.w3.org/2000/svg%22%3E%3Cfilter id=%22noiseFilter%22%3E%3CfeTurbulence type=%22fractalNoise%22 baseFrequency=%220.65%22 numOctaves=%223%22 stitchTiles=%22stitch%22/%3E%3C/filter%3E%3Crect width=%22100%25%22 height=%22100%25%22 filter=%22url(%23noiseFilter)%22/%3E%3C/svg%3E');
}

/* Visible Grid Overlay (Swiss Style) */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 1; /* Above body background, behind images */
}

.grid-overlay .container {
    height: 100%;
}

.grid-overlay-column {
    border-left: 1px solid rgba(0, 0, 0, 0.05);
}
.grid-overlay-column:last-child {
    border-right: 1px solid rgba(0, 0, 0, 0.05);
}

.h-100 {
    height: 100%;
}

/* 
   ======================================
   TYPOGRAPHY
   ====================================== 
*/
h1, h2, h3, h4 {
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.05em;
}

h1 {
    font-size: clamp(1.5rem, 3.5vw, 3.5rem);
    font-weight: 700;
    white-space: nowrap;
}

h2 {
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--clr-light-mid);
    letter-spacing: 0.05em;
    font-weight: 600;
}



.hero-small-text {
    font-size: 1.1rem;
    line-height: 1.4;
    font-weight: 300;
    color: var(--clr-dark-mid);
    margin-top: 2rem;
}

.huge-text {
    font-size: clamp(4rem, 10vw, 12rem);
    line-height: 0.9;
}

.accent-font {
    font-family: var(--font-accent);
    font-weight: 300;
    text-transform: none;
}

.content-p {
    font-size: 1.1rem;
    font-weight: 300;
    line-height: 1.6;
    max-width: 600px;
    opacity: 0.8;
}

/* Utilities */
.text-light { color: var(--clr-light); }
.text-dark { color: var(--clr-dark); }
.text-accent { color: var(--clr-accent); }
.bg-dark { 
    background-color: var(--clr-dark); 
    color: var(--clr-light);
    position: relative;
    z-index: 5;
}
.bg-dark h2 { color: var(--clr-light); }
.text-right { text-align: right; }
.align-bottom { align-self: end; }

a {
    color: inherit;
    text-decoration: none;
}

/* 
   ======================================
   GRID SYSTEM (4-Column Layout)
   ====================================== 
*/
.container {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

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

.col-span-1 { grid-column: span 1; }
.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }

.section-padding {
    padding-top: var(--section-padding);
    padding-bottom: var(--section-padding);
}

/* 
   ======================================
   COMPONENTS
   ====================================== 
*/

/* Navigation */
.site-nav {
    padding-top: 2rem;
    padding-bottom: 2rem;
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1002;
    mix-blend-mode: difference;
    color: white;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
}

.nav-links {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 3rem;
}

/* Burger Button */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    background: none;
    border: none;
    padding: 10px;
    z-index: 1002;
    cursor: pointer;
    width: 44px;
    height: 44px;
}

.burger-menu span {
    display: block;
    width: 24px;
    height: 1.5px;
    background-color: #fff !important;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Burger Animation */
.burger-menu.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger-menu.active span:nth-child(2) { opacity: 0; }
.burger-menu.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Menu Overlay */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--clr-dark);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--container-padding);
    transform: translateY(-100%);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-menu.active {
    transform: translateY(0);
}

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

.mobile-nav-links a {
    font-size: clamp(2rem, 8vw, 3.5rem);
    font-weight: 300;
    text-transform: none;
    letter-spacing: -0.02em;
    line-height: 1;
    color: var(--clr-light);
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 100%);
    text-decoration: none;
}

.mobile-nav-links a span {
    display: block;
    transform: translateY(100%);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-menu.active .mobile-nav-links a span {
    transform: translateY(0);
}

/* Back Button */
.back-button {
    display: inline-flex;
    align-items: center;
    text-transform: uppercase;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    background: transparent;
    padding: 0.2rem 0;
    border-radius: 0;
    transition: opacity 0.3s ease;
    text-decoration: none;
    color: inherit;
}

.back-button:hover {
    opacity: 0.6;
}

/* Logos & Symbols */
.logo {
    display: inline-flex;
    align-items: center;
    height: 1.5rem;
}

.logo img {
    height: 100%;
    width: auto;
    display: block;
    filter: invert(1);
}

.loader-symbol {
    height: 1.2rem;
    width: auto;
    display: block;
    filter: brightness(0) invert(1); /* Forces it to be white regardless of OS theme */
}

/* Editorial Hero Section */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: stretch;
    padding: 0; /* Full bleed */
}

.hero-content {
    flex: 1;
    padding: 8rem var(--container-padding) 4rem calc(max(0px, (100vw - 1600px) / 2) + var(--container-padding));
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-subtext {
    margin-top: 2rem;
    color: var(--clr-dark-mid);
    max-width: 600px;
}

.hero-details {
    margin-top: 6rem;
    font-size: 1.1rem;
    line-height: 1.4;
    font-weight: 300;
    color: var(--clr-dark-mid);
}

.hero-details p:first-child {
    color: var(--clr-light-mid);
    margin-bottom: 0.5rem;
}

.hero-image {
    flex: 1;
    overflow: hidden;
    position: relative;
    z-index: 5;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

/* Work Section & Picture Frames */
.section-header {
    margin-bottom: 4rem;
    border-bottom: 1px solid var(--clr-dark-mid);
    padding-bottom: 2rem;
}

.work-grid {
    row-gap: 6rem;
}

.work-item {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.picture-frame {
    background-color: var(--clr-dark-mid);
    width: 100%;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: block; /* Since it's an <a> now */
}

.picture-frame::after {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.1);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.picture-frame:hover {
    transform: scale(0.98);
}

.picture-frame:hover::after {
    opacity: 1;
}

.frame-portrait { aspect-ratio: 4 / 5; }
.frame-landscape { aspect-ratio: 16 / 9; }
.frame-panorama { aspect-ratio: 21 / 9; }
.frame-square { aspect-ratio: 1 / 1; }

.picture-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0; left: 0;
}

.work-meta {
    font-size: 0.9rem;
    
    font-weight: 600;
    letter-spacing: 0.05em;
    border-top: 1px solid rgba(0,0,0,0.1);
    padding-top: 1rem;
}

.work-role {
    color: var(--clr-light-mid);
}

/* About Section */
.about-details {
    margin-top: 4rem;
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 2rem;
}

.about-details ul {
    list-style: none;
}

.about-details p {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--clr-light-mid);
}

.about-details li {
    font-size: 1.1rem;
    font-weight: 300;
    line-height: 1.6;
    margin-bottom: 0.5rem;
    color: var(--clr-light);
    opacity: 0.8;
}

/* Contact Section */
.email-link {
    display: inline-block;
    font-size: clamp(2rem, 4vw, 4rem);
    font-weight: 700;
    margin-top: 2rem;
    margin-bottom: 4rem;
    position: relative;
}

.social-links {
    display: flex;
    gap: 2rem;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3.5rem;
    height: 3.5rem;
    border: 1px solid white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    z-index: 90;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    mix-blend-mode: difference;
}

.scroll-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

.scroll-to-top:hover {
    transform: translateY(-5px);
}

/* Footer */
footer {
    padding: 2rem var(--container-padding);
    border-top: 1px solid var(--clr-light-mid);
    font-size: 0.85rem;
    
    color: var(--clr-light-mid);
    letter-spacing: 0.05em;
}

/* 
   ======================================
   RESPONSIVE DESIGN (Tablets & Mobile)
   ====================================== 
*/
@media (max-width: 1024px) {
    .grid { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .col-span-3, .col-span-4 { grid-column: span 2; }
    #hero { flex-direction: column; }
    .hero-image { min-height: 50vh; }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1.5rem;
        --section-padding: 4rem;
    }
    
    body {
        padding: 0;
    }
    
    h1 {
        white-space: normal;
        font-size: clamp(2.5rem, 10vw, 3.5rem);
        word-wrap: break-word;
    }
    
    .huge-text {
        font-size: clamp(3rem, 15vw, 6rem);
    }
    
    .grid { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr; }
    .col-span-1, .col-span-2, .col-span-3, .col-span-4 { grid-column: span 1; }
    
    /* Navigation Stack on Mobile */
    .nav-links {
        display: none;
    }
    .burger-menu {
        display: flex;
    }
    .hero-details {
        margin-top: 3rem;
    }
    
    /* Text Alignments */
    .section-header .text-right,
    .work-role.text-right { 
        text-align: left; 
    }
    .align-bottom { 
        align-self: start; 
        margin-top: 1rem; 
    }
    
    /* Picture Frames Ratio for better visibility */
    .frame-panorama { aspect-ratio: 16 / 9; }
    .frame-landscape { aspect-ratio: 4 / 3; }

    /* Work Meta */
    .work-meta.grid { display: flex; flex-direction: column; gap: 0.25rem; }

    /* Email Link Long words wrapping */
    .email-link { 
        word-break: break-all; 
        font-size: clamp(1.5rem, 8vw, 4rem);
    }
    
    /* Footer */
    footer .grid { 
        display: flex; 
        flex-direction: column; 
        gap: 1rem; 
    }
    footer .text-right { 
        text-align: left; 
    }

    /* Hide custom cursor on mobile to avoid touching issues */
    .custom-cursor { display: none; }
    body, a, button { cursor: auto; }
}

/* GSAP Helper Classes */
.gsap-reveal { clip-path: polygon(0 0, 100% 0, 100% 150%, 0% 150%); }

/* Page Transition */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--clr-dark);
    z-index: 10000;
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.5s cubic-bezier(0.83, 0, 0.17, 1);
}
.page-transition.loaded {
    opacity: 0;
}