@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500&display=swap');

/* Grid Board Styles - Visual.biz Homepage Aesthetic */

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

:root {
    /* Canvas */
    --canvas: #ffffff;

    /* Text */
    --text-primary: #161616;
    --text-muted: rgba(22, 22, 22, 0.5);

    /* Grid - 16 column system for fine-grained placement */
    --columns: 16;
    --cell-size: 84px;
    --gap: 10px;
    --margin: 32px;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Smooth scrolling - native, performant */
html {
    scroll-behavior: smooth;
}

/* Perspective for z-depth effect */
.board-wrapper {
    perspective: 1200px;
    perspective-origin: center center;
    transition: opacity 0.5s ease;
}

/* Hide homepage completely when directly loading a project */
.is-project-loading .board-wrapper,
.is-project-loading .header {
    opacity: 0;
    pointer-events: none;
}


html {
    font-size: 16px;
    overscroll-behavior-y: none;
    /* Prevent pull-to-refresh on mobile */
}

body {
    font-family: var(--font-primary);
    background-color: var(--canvas);
    color: var(--text-primary);
    line-height: 1.4;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    overscroll-behavior-y: none;
    /* Prevent pull-to-refresh on mobile */
}

/* Header Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px var(--margin);
    background: transparent;
    z-index: 100;
    font-size: 12px;
    letter-spacing: 0.02em;
    /* Force GPU promotion to prevent being obscured by 3D tiles */
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
    backface-visibility: hidden;
}

.header-logo {
    font-weight: 500;
}

.header-center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
}

.header-nav {
    display: flex;
    gap: 32px;
}

.header-nav a {
    color: var(--text-primary);
    text-decoration: none;
    transition: opacity 0.2s;
}

.header-nav a:hover {
    opacity: 0.5;
}

.header-status {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
}

/* Board Container */
.board-wrapper {
    width: 100%;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 80px 32px var(--margin) 32px;
    background-color: var(--canvas);
    box-sizing: border-box;
    overflow-x: hidden;
    /* Isolate 3D Context here so Header (fixed) isn't affected */
    perspective: 2500px;
    perspective-origin: center 50vh;
}

/* Layout Control: Hide Navbar */
body.navbar-hidden .header {
    display: none !important;
}

/* Layout Control: Fullscreen Canvas (edge-to-edge) */
body.fullscreen-canvas .board-wrapper {
    padding-top: var(--margin);
    padding-left: 0;
    padding-right: 0;
}

body.fullscreen-canvas #board {
    max-width: 100%;
}

#board {
    position: relative;
    width: 100%;
    max-width: 1504px;
    margin: 0 auto;
    overflow: hidden;
    box-sizing: border-box;
}

/* Loading state */
.loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 14px;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

/* DEBUG: Temporary grid lines - remove for production */
.debug-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.debug-grid-cell {
    position: absolute;
    border: 0.5px solid rgba(0, 0, 0, 0.15);
    box-sizing: border-box;
}

/* Tile - Container with clipping */
.tile {
    position: absolute;
    overflow: hidden;
    /* 3D Transform Support */
    transform-style: preserve-3d;
    will-change: transform, clip-path;
    /* Optimized for Masked Reveal */
    backface-visibility: hidden;

    /* Masked Reveal: Initial State */
    clip-path: inset(100% 0 0 0);
    /* Fully masked from bottom */
    transition: clip-path 1.2s cubic-bezier(0.19, 1, 0.22, 1), transform 1.2s cubic-bezier(0.19, 1, 0.22, 1);
}

/* Revealed State - Added via JS */
.tile.is-visible {
    clip-path: inset(0 0 0 0);
    /* Fully visible */
    pointer-events: auto;
    /* Ensure clickable */
}

/* REMOVED: .tile:hover .tile-image { opacity: 0.7; } */

.tile-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Image wrapper - contains image with natural aspect ratio */
.tile-image-wrapper {
    width: 100%;
    height: 100%;
    overflow: hidden;
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
    /* Smooth 'Easy Ease' */
    will-change: transform;
}

.tile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.3s ease;
}

/* Video */
.tile-video-wrapper {
    width: 100%;
    height: 100%;
    overflow: hidden;
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: transform;
}

.tile-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Index number - positioned inside tile corners */
.tile-index {
    position: absolute;
    font-size: 11px;
    font-weight: 400;
    color: var(--text-primary);
    letter-spacing: 0.02em;
    z-index: 10;
}

/* Index positions - INSIDE the tile corners */
.tile-index.top-left {
    top: 8px;
    left: 8px;
}

.tile-index.top-right {
    top: 8px;
    right: 8px;
}

.tile-index.bottom-left {
    bottom: 8px;
    left: 8px;
}

.tile-index.bottom-right {
    bottom: 8px;
    right: 8px;
}

/* Text tiles - Swiss Typography */
.tile-text-wrapper {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
}

.tile-text {
    font-family: 'Helvetica Neue', 'Inter', -apple-system, sans-serif;
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 0.9;
    white-space: pre-line;
}

/* Text Sizes - Swiss style */
.text-sm {
    font-size: 0.75rem;
    letter-spacing: 0.02em;
    line-height: 1.2;
}

.text-md {
    font-size: 1rem;
    line-height: 1.1;
}

.text-lg {
    font-size: 1.5rem;
    letter-spacing: -0.01em;
}

.text-xl {
    font-size: 2.5rem;
    letter-spacing: -0.03em;
}

.text-2xl {
    font-size: 4rem;
    letter-spacing: -0.04em;
    line-height: 0.85;
}

/* Text Weights */
.weight-light {
    font-weight: 300;
}

.weight-regular {
    font-weight: 400;
}

.weight-medium {
    font-weight: 500;
}

.weight-bold {
    font-weight: 700;
}

/* Link Tiles */
.tile-link-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tile-link {
    color: var(--text-primary);
    text-decoration: none;
    transition: opacity 0.2s;
}

.tile-link:hover {
    opacity: 0.7;
}

.tile-link-button {
    padding: 12px 24px;
    background: var(--text-primary);
    color: var(--canvas);
    border-radius: 4px;
}

.tile-link-card {
    display: block;
    width: 100%;
    height: 100%;
    padding: 20px;
    background: #f5f5f5;
    border-radius: 8px;
}

/* Embed/iFrame Tiles */
.tile-embed-wrapper {
    width: 100%;
    height: 100%;
}

.tile-embed-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Icon/SVG Tiles */
.tile-icon-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tile-icon-wrapper svg {
    transition: transform 0.2s;
}

.tile:hover .tile-icon-wrapper svg {
    transform: scale(1.05);
}

/* Overlay */
.tile-overlay {
    pointer-events: none;
}

/* Hide scrollbar */
::-webkit-scrollbar {
    width: 0;
    display: none;
}

body {
    scrollbar-width: none;
}

/* Responsive */
/* Desktop view maintained on all devices - no cell resizing */
@media (max-width: 900px) {
    .header-nav {
        gap: 20px;
    }
}

@media (max-width: 600px) {
    .header-center {
        display: none;
    }
}

/* ===========================================
   PAGE TRANSITIONS - Project Page Animations
   =========================================== */

/* Project page container */
.page-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--canvas);
    z-index: 1000;
    /* Well above everything else */
    overflow-y: auto;
    overflow-x: hidden;
    transform-origin: center bottom;
}

/* Hidden state - completely removed from view */
.page-hidden {
    display: none;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(100%);
}

/* Entering state - starts from bottom */
.page-entering {
    display: block;
    visibility: visible;
    pointer-events: none;
    transform: translateY(100%);
}

/* Visible state - fully revealed */
.page-visible {
    display: block;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
    transition: transform 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

/* Exiting state (Back button) - slides down */
.page-exiting {
    display: block;
    visibility: visible;
    pointer-events: none;
    transform: translateY(100%);
    transition: transform 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

/* Exiting state (Finish/Scroll) - slides UP to top */
.page-exiting-top {
    display: block;
    visibility: visible;
    pointer-events: none;
    transform: translateY(-100%);
    transition: transform 0.8s cubic-bezier(0.6, 0, 0.1, 1);
    /* Slightly different ease for exit */
}

/* Effort/Tension State - visual feedback before exit */
.effort-tension {
    /* Pull up significantly to show "end of scroll" resistance */
    transform: translateY(-80px) scale(0.97);
    /* Use the tension easing from config */
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Homepage hidden state when project is active */
.homepage-hidden {
    visibility: hidden;
    pointer-events: none;
    /* Do NOT use display: none - it causes scroll/layout reset */
}

/* Project header */
.project-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 20px var(--margin);
    background: var(--canvas);
    z-index: 100;
    border-bottom: 1px solid rgba(22, 22, 22, 0.05);
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: transparent;
    border: 1px solid rgba(22, 22, 22, 0.15);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 12px;
    font-family: var(--font-primary);
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: all 0.2s ease;
}

.back-btn:hover {
    background: rgba(22, 22, 22, 0.05);
    border-color: rgba(22, 22, 22, 0.3);
}

.back-btn svg {
    width: 16px;
    height: 16px;
}

.project-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

/* Project board wrapper */
.project-board-wrapper {
    padding-top: 80px;
    /* Account for fixed project header */
}

.project-board {
    position: relative;
    width: 100%;
    max-width: 1504px;
    margin: 0 auto;
    min-height: 100vh;
}

/* Tile Content */
.tile-inner {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    /* Ensure zoom stays within box */
    /* Remove pointer-events: none check if it exists elsewhere, usually fine here */
}

/* Base Image Style */
.tile img,
.tile video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), filter 0.4s ease;
    will-change: transform, filter;
}

/* CSS Zoom applied to wrapper to avoid conflict with JS Parallax on <img> */
body.view-home .tile:hover .tile-image-wrapper,
body.view-home .tile:hover .tile-video-wrapper,
body.view-home .tile.manual-hover .tile-image-wrapper,
body.view-home .tile.manual-hover .tile-video-wrapper,
body.view-home .tile.is-hovered .tile-image-wrapper,
body.view-home .tile.is-hovered .tile-video-wrapper {
    transform: scale(1.05);
}

/* Brightness still applied to image (filters compose fine) */
body.view-home .tile:hover img,
body.view-home .tile:hover video,
body.view-home .tile.manual-hover img,
body.view-home .tile.manual-hover video,
body.view-home .tile.is-hovered img,
body.view-home .tile.is-hovered video {
    filter: brightness(1.15);
    opacity: 1;
}

/* Project Page: No Hover Effect (Static) */
body.view-project .tile:hover .tile-image-wrapper,
body.view-project .tile:hover .tile-video-wrapper {
    transform: none;
}

body.view-project .tile:hover img,
body.view-project .tile:hover video {
    filter: none;
    opacity: 1;
}

/* Ensure tiles are always interactive even during scroll/animations if possible */
.tile {
    pointer-events: auto !important;
}

.board-wrapper,
#board {
    pointer-events: auto !important;
}

/* Project Page: No Hover Effect (Static) */
body.view-project .tile:hover img,
body.view-project .tile:hover video {
    transform: none;
    filter: none;
}

/* Remove old overlay entirely */
.tile .overlay {
    display: none !important;
}

/* Clickable project tile overlay - INVISIBLE BUT CLICKABLE */
.tile-project-link {
    position: absolute;
    inset: 0;
    z-index: 10;
    cursor: pointer;
    /* Remove visual styling */
    background: transparent;
    opacity: 0;
}

/* Remove text/icon */
.tile-project-link::after,
.tile-project-link::before {
    display: none !important;
}

/* Remove hover effects on the link itself */
.tile-project-link:hover {
    background: transparent;
    opacity: 0;
}

/* Homepage board fade during transition */
#board {
    transition: opacity 0.4s ease;
}

/* ===========================================
   CINEMATIC PRELOADER - Swiss Analog Ticker
   =========================================== */

#preloader {
    position: fixed;
    inset: 0;
    background-color: var(--canvas);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 0.8s cubic-bezier(0.8, 0, 0.1, 1);
    /* Heavy cinematic ease */
    will-change: transform;
}

#preloader.preloader-hidden {
    transform: translateY(-100%);
    pointer-events: none;
}

.ticker-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.ticker-label {
    font-size: 10px;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    text-transform: uppercase;
}

#ticker {
    font-family: 'Helvetica Neue', 'Inter', sans-serif;
    font-size: 80px;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 0.8;
    letter-spacing: -0.04em;
    font-variant-numeric: tabular-nums;
    /* Keeps numbers same width to prevent jitter */
}

/* Mobile Ticker Size */
@media (max-width: 600px) {
    #ticker {
        font-size: 48px;
    }
}

/* Mobile Tile Adjustments - Prevent clipping */
@media (max-width: 1024px) {

    /* Smaller index for mobile */
    .tile-index {
        font-size: 9px;
        padding: 2px 4px;
    }

    /* Adjust index positioning for smaller tiles */
    .tile-index.top-left,
    .tile-index.bottom-left {
        left: 4px;
    }

    .tile-index.top-right,
    .tile-index.bottom-right {
        right: 4px;
    }

    .tile-index.top-left,
    .tile-index.top-right {
        top: 4px;
    }

    .tile-index.bottom-left,
    .tile-index.bottom-right {
        bottom: 4px;
    }

    /* Ensure tiles don't clip content aggressively on small screens */
    .tile-content {
        overflow: visible;
    }
}