/* ==========================================================================
   PICUÁ - Light Institutional Monochromatic Card
   Theme: High-Contrast Light (Pure White, Dark Accents, Architectural Fit)
   ========================================================================== */

/* --- Reset & Variables --- */
:root {
    --bg-color: #ffffff;
    --text-color: #000000;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
    
    --font-brand: 'Syne', sans-serif;
    --font-mono: 'Space Grotesk', sans-serif;
    --font-sans: 'Plus Jakarta Sans', sans-serif;

    --transition-ease: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html, body {
    width: 100vw;
    height: 100vh;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-sans);
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    user-select: none;
}

/* --- Main Layout --- */
.main-viewport {
    width: 100vw;
    height: 100vh;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
    background-color: var(--bg-color);
    transition: opacity 0.3s ease-in-out;
    z-index: 5;
}

/* --- Corner Navigation & Controls --- */
.corner {
    position: absolute;
    z-index: 10;
}

.top-left {
    top: 3rem;
    left: 4rem;
}

.top-right {
    top: 3rem;
    right: 4rem;
}

.bottom-left {
    bottom: 3rem;
    left: 4rem;
}

.bottom-right {
    bottom: 3rem;
    right: 4rem;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 2rem;
}

/* --- Language Selector --- */
.lang-selector {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.lang-btn {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition-ease);
    padding: 0.1rem 0;
    text-transform: lowercase;
}

.lang-btn.active {
    color: var(--text-color);
    font-weight: 500;
    border-bottom: 1px solid var(--text-color);
}

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

.lang-divider {
    color: #d1d5db;
    font-size: 0.8rem;
}

/* --- Elements --- */
.logo {
    font-family: var(--font-brand);
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    color: var(--text-color);
}

.logo-dot {
    color: #4b5563;
}

.nav-trigger {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.8px;
    text-transform: lowercase;
    cursor: pointer;
    transition: var(--transition-ease);
    padding: 0.5rem 0;
}

.nav-trigger:hover {
    color: var(--text-color);
    letter-spacing: 1.5px;
}

/* --- Central Core --- */
.center-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 780px;
    z-index: 5;
}

.vessel-canvas {
    width: 160px;
    height: 160px;
    margin-bottom: 2.5rem;
    cursor: pointer;
    position: relative;
    transition: var(--transition-ease);
}

.vessel-canvas:hover {
    transform: scale(1.06);
}

.abstract-mesh {
    width: 100%;
    height: 100%;
    animation: rotate-vessel 45s infinite linear;
}

.slogan {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 300;
    line-height: 1.45;
    letter-spacing: 1.5px;
    color: var(--text-color);
    
    /* Tall, thin, vertically stretched typographic styling */
    display: block;
    transform: scaleY(1.35);
    transform-origin: center;
}

@keyframes rotate-vessel {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* --- Overlays (Glassmorphic White Modals) --- */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.overlay-content {
    width: 100%;
    max-width: 480px;
    padding: 3.5rem 3rem;
    position: relative;
    border: 1px solid var(--border-color);
    background: #ffffff;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.05);
    opacity: 0;
    transform: translateY(20px);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.overlay.active .overlay-content {
    opacity: 1;
    transform: translateY(0);
}

.close-trigger {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition-ease);
}

.close-trigger:hover {
    color: var(--text-color);
}

.overlay-title {
    font-family: var(--font-brand);
    font-size: 1.65rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 1.25rem;
}

.overlay-text {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* --- Forms (Light minimal input) --- */
.overlay-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.overlay-form input {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid #d1d5db;
    color: var(--text-color);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    padding: 0.75rem 0;
    outline: none;
    transition: var(--transition-ease);
}

.overlay-form input:focus {
    border-bottom-color: var(--text-color);
}

.submit-btn {
    align-self: flex-start;
    background: transparent;
    border: 1px solid var(--text-color);
    color: var(--text-color);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.6rem 1.75rem;
    cursor: pointer;
    transition: var(--transition-ease);
}

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

.overlay-footer {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.overlay-footer a {
    color: var(--text-color);
    text-decoration: none;
}

/* --- Estonia Datasheet --- */
.data-sheet {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.data-row {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.data-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.data-value {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--text-color);
}

/* --- Projects List --- */
.project-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.project-list li {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.project-name {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 1.1rem;
}

.project-desc {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.5;
}

.future-project {
    opacity: 0.5;
}

/* --- Responsive Adjustments --- */
@media (max-width: 768px) {
    .main-viewport {
        padding: 2rem;
        flex-direction: column;
        justify-content: space-between;
        align-items: center;
        overflow-y: auto;
    }

    .corner {
        position: relative;
        top: auto;
        bottom: auto;
        left: auto;
        right: auto;
        margin: 0.75rem 0;
    }

    .top-left {
        order: 1;
    }

    .header-controls {
        flex-direction: column;
        gap: 0.75rem;
    }

    .center-content {
        order: 2;
        margin: 2.5rem 0;
    }

    .top-right { order: 3; }
    .bottom-left { order: 4; }
    .bottom-right { order: 5; }

    .slogan {
        font-size: 1.6rem;
    }

    .vessel-canvas {
        width: 120px;
        height: 120px;
        margin-bottom: 1.5rem;
    }
}