@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@1,300;1,400&family=DM+Sans:ital,opsz,wght@0,9..40,100..400;1,9..40,100..400&display=block');

/* Reset and Variables */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-bg: #0D0B09;
    --color-accent: #C9B89A;
    --color-text: #F0EDE8;
    --color-muted: #8E877D;
    
    --font-display: 'Cormorant Garamond', serif;
    --font-body: 'DM Sans', sans-serif;
    
    /* Bezier for the panel expansion: starts fast, slows down beautifully like a soft door closing */
    --transition-panel: flex 0.85s cubic-bezier(0.25, 1, 0.3, 1), filter 0.85s cubic-bezier(0.25, 1, 0.3, 1);
    --transition-content: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.5s, opacity 0.8s ease 0.5s;
    --transition-label: opacity 0.4s ease;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-weight: 200;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Site Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 40px 60px;
    mix-blend-mode: difference;
    pointer-events: none; /* Let clicks pass through header elements where needed */
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 20px;
    pointer-events: auto;
}

.logo {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 300;
    font-size: 28px;
    letter-spacing: 0.15em;
    color: var(--color-text);
    display: flex;
    align-items: center;
}

.logo-separator {
    color: var(--color-accent);
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 300;
    opacity: 0.45;
    user-select: none;
}

.logo-brand {
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.25em;
    color: var(--color-accent);
}

.subtitle {
    font-family: var(--font-body);
    font-size: 10px;
    letter-spacing: 0.25em;
    font-weight: 300;
    color: var(--color-muted);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.instagram-link {
    font-family: var(--font-body);
    font-size: 10px;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    text-decoration: none;
    pointer-events: auto;
    padding: 5px;
    transition: color 0.3s ease;
}

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

/* Panels Container */
.panels-container {
    flex: 1;
    display: flex;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--color-bg);
}

/* Base Panel Style */
.panel {
    position: relative;
    height: 100%;
    /* 5 panels initially share space equally (20% each) */
    flex: 20 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-panel);
}

/* Panel Background Image */
.panel-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    transition: transform 1.2s cubic-bezier(0.25, 1, 0.3, 1), filter 0.85s cubic-bezier(0.25, 1, 0.3, 1);
    
    /* Inactive visual state: dark and desaturated (brightness 45%, desaturate 40% = 60% saturation left) */
    filter: brightness(0.4) saturate(0.6) blur(3px);
}

/* Overlay for deep warm tint */
.panel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg);
    opacity: 0.55;
    transition: opacity 0.85s ease;
}

/* Vertically Rotated Labels (Book Spine Style) */
.panel-label-wrapper {
    position: absolute;
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    pointer-events: none;
    opacity: 1;
    transition: var(--transition-label);
    
    /* Center it inside the narrow strip */
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.panel-number {
    font-family: var(--font-display);
    font-style: italic;
    font-size: 16px;
    color: var(--color-accent);
}

.panel-label {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 300;
    letter-spacing: 0.35em;
    color: var(--color-text);
    white-space: nowrap;
}

/* Panel Content (Visible when active) */
.panel-content {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 650px;
    max-width: calc(65vw - 160px);
    padding: 80px 80px 100px 80px;
    z-index: 6;
    pointer-events: none;
    
    /* Text slide-up animation initial state */
    opacity: 0;
    transform: translateY(40px);
    /* Fast fade-out when panel closes, preventing jumpy wraps during width shrink */
    transition: transform 0.2s ease, opacity 0.15s ease;
}

.content-number {
    display: block;
    font-family: var(--font-display);
    font-style: italic;
    font-size: 24px;
    color: var(--color-accent);
    margin-bottom: 10px;
}

.content-subhead {
    display: block;
    font-family: var(--font-body);
    font-size: 9px;
    font-weight: 400;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.content-title {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 300;
    font-size: clamp(32px, 4.5vw, 54px);
    line-height: 1.1;
    color: var(--color-text);
    margin-bottom: 30px;
}

.content-body {
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 1.8;
    color: #C5C1BA; /* Subdued reading color */
    font-weight: 200;
}

.content-body p {
    margin-bottom: 15px;
}

/* Active Panel State (65% width) */
.panel.active {
    flex: 65 0 0;
    flex-grow: 1; /* Neemt alle extra ruimte in beslag op grote schermen */
    cursor: default;
    max-width: none; /* Nooit beperken — override voor het geval een regel lekt */
}

/* Inactive Panel States when another is active (8.75% width each) */
.panels-container:has(.panel.active) .panel:not(.active) {
    flex: 8.75 0 0;
    max-width: 120px; /* Behoudt het boekrug-effect op grote schermen */
}

.panel.active .panel-background {
    /* Image becomes much brighter and vivid */
    filter: brightness(0.85) saturate(1.1) blur(0px);
    transform: scale(1.0);
}

.panel.active .panel-overlay {
    /* Gradient: dark under text, fading to fully transparent on the right */
    background: linear-gradient(90deg, rgba(13, 11, 9, 0.95) 0%, rgba(13, 11, 9, 0.75) 450px, rgba(13, 11, 9, 0) 950px);
    opacity: 1;
}

/* Active label fades out to make space for the main content */
.panel.active .panel-label-wrapper {
    opacity: 0;
}

/* Active Content slides up and fades in with a 0.5s delay */
.panel.active .panel-content {
    opacity: 1;
    transform: translateY(0);
    transition: var(--transition-content);
    pointer-events: auto;
}

/* Hover effects for inactive panels */
.panel:not(.active):hover .panel-background {
    filter: brightness(0.5) saturate(0.8) blur(1px);
    transform: scale(1.02);
}

.panel:not(.active):hover .panel-label-wrapper .panel-label {
    color: var(--color-accent);
}

/* Responsive adjustments */
@media (max-width: 900px) {
    body {
        height: 100vh;
        overflow: hidden;
    }
    
    .site-header {
        /* Maak de header exact even hoog als een gesloten paneel (8.75vh), 
           zodat de tekst en het logo altijd verticaal perfect op 1 lijn centreren */
        height: 8.75vh;
        padding: 0 30px;
    }

    /* 1. Header minimaliseren */
    .logo-separator,
    .logo-brand,
    .subtitle {
        display: none;
    }
    
    /* 2. Footer verbergen */
    .site-footer {
        display: none;
    }

    .panels-container {
        flex-direction: column;
    }

    .panel {
        flex: 20 0 0;
        width: 100%;
        max-width: 100%; /* Overschrijf de 120px max-width uit de desktop-regel */
        /* Geen height: auto — flex-basis regelt de verdeling in column-layout */
    }

    .panel.active {
        flex: 65 0 0;
        /* GEEN flex-grow: 1 hier — dat overschrijft de 65 en geeft het actieve paneel
           minder ruimte dan de 4 inactieve panelen samen (4 × 8.75 = 35 > 1) */
        max-width: 100%;
    }

    .panels-container:has(.panel.active) .panel:not(.active) {
        flex: 8.75 0 0;
        max-width: 100%; /* Geen 120px breedte-beperking op mobiel — panelen zijn verticaal */
    }

    .panel-label-wrapper {
        flex-direction: row;
        writing-mode: horizontal-tb;
        transform: translate(-50%, -50%);
    }

    .panel-label {
        writing-mode: horizontal-tb;
        transform: none;
    }
    
    /* 3. Ademruimte en scrollbaar maken */
    .panel-content {
        /* Vult het hele actieve paneel */
        top: 0;
        bottom: 0;
        height: 100%;
        overflow-y: auto;
        
        width: 100%;
        max-width: 100%;
        /* Grote padding aan de bovenkant zodat tekst niet onder het logo start */
        padding: 90px 30px 60px 30px;
    }

    /* Overschrijf de horizontale desktop-gradient met een verticale mobiele versie:
       Donker bovenaan (voor leesbaarheid onder de header) → transparant onderaan */
    .panel.active .panel-overlay {
        background: linear-gradient(180deg,
            rgba(13, 11, 9, 0.97) 0%,
            rgba(13, 11, 9, 0.80) 40%,
            rgba(13, 11, 9, 0.30) 100%
        );
        opacity: 1;
    }
    
    /* Scrollbar netjes verbergen/stijlen voor mobiel */
    .panel-content::-webkit-scrollbar {
        width: 0;
        background: transparent;
    }
}

/* Customization Overlay Styles */
.subtle-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 9px;
    letter-spacing: 0.25em;
    color: var(--color-accent);
    text-transform: uppercase;
    outline: none;
    pointer-events: auto;
    transition: color 0.3s ease;
    padding: 0;
}

.subtle-btn:hover {
    color: var(--color-text);
}

.customize-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(13, 11, 9, 0.92);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s cubic-bezier(0.25, 1, 0.3, 1);
}

.customize-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.customize-container {
    width: 100%;
    max-width: 600px;
    padding: 60px;
    border: 1px solid #2A2520;
    background-color: var(--color-bg);
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.customize-title {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 300;
    font-size: 32px;
    color: var(--color-text);
    margin-bottom: 15px;
    letter-spacing: 0.05em;
    text-align: center;
}

.customize-desc {
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 300;
    color: var(--color-muted);
    line-height: 1.6;
    margin-bottom: 40px;
    text-align: center;
    letter-spacing: 0.05em;
}

.customize-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 40px;
}

.upload-option {
    background: none;
    border: 1px solid #231F1B;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
    cursor: pointer;
    text-align: left;
    outline: none;
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.upload-option:hover {
    border-color: var(--color-accent);
    background-color: rgba(201, 184, 154, 0.03);
}

.option-label {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 400;
    color: var(--color-text);
    letter-spacing: 0.1em;
}

.option-specs {
    font-family: var(--font-body);
    font-size: 9px;
    font-weight: 300;
    color: var(--color-muted);
    letter-spacing: 0.05em;
}

.upload-status {
    font-family: var(--font-body);
    font-size: 11px;
    color: var(--color-accent);
    text-align: center;
    min-height: 20px;
    margin-bottom: 25px;
    letter-spacing: 0.1em;
}

.upload-status.error {
    color: #C95A49; /* Subdued brick red for errors */
}

.close-btn {
    background: none;
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.2em;
    padding: 15px;
    cursor: pointer;
    outline: none;
    transition: background-color 0.3s ease, color 0.3s ease;
    text-align: center;
}

.close-btn:hover {
    background-color: var(--color-accent);
    color: var(--color-bg);
}

@media (max-width: 600px) {
    .customize-container {
        border: none;
        padding: 30px 20px;
    }
}

/* Hybrid Contact Form */
.hybrid-contact-form {
    margin-top: 25px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 400px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 10px 0;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 300;
    letter-spacing: 0.05em;
    outline: none;
    transition: border-color 0.3s ease;
    resize: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-group input:focus,
.form-group textarea:focus {
    border-bottom: 1px solid var(--color-text);
}

.submit-btn {
    margin-top: 10px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--color-text);
    padding: 12px 20px;
    font-family: var(--font-body);
    font-size: 11px;
    letter-spacing: 0.2em;
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: flex-start;
}

.submit-btn:hover {
    background: var(--color-text);
    color: var(--color-bg);
    border-color: var(--color-text);
}

.whatsapp-fallback {
    margin-top: 20px;
}

.whatsapp-link {
    font-family: var(--font-body);
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.3s ease;
    border-bottom: 1px dotted rgba(255, 255, 255, 0.3);
    padding-bottom: 2px;
}

.whatsapp-link:hover {
    color: var(--color-text);
    border-bottom-color: var(--color-text);
}

.atelier-address {
    margin-top: 30px;
    font-family: var(--font-body);
    font-size: 10px;
    line-height: 1.8;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.4);
}

.atelier-address strong {
    font-weight: 400;
    letter-spacing: 0.2em;
    color: var(--color-accent);
}

.panel-copyright {
    margin-top: 50px;
    font-family: var(--font-body);
    font-size: 9px;
    font-weight: 200;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.2);
}