/* ppss.ee - Luxury-Premium Editorial Design */
/* Midnight-blue magazine editorial with Nordic luxury identity */

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
    --midnight-depth: #0A1830;
    --nordic-silver: #C0C8D8;
    --gold-accent: #D0A038;
    --duotone-warm: #C89068;
    --bright-coral: #F07060;
    --ice-blue: #A0C0E0;
    --deep-navy: #0A0820;

    --font-primary: 'Nunito', sans-serif;
    --spread-width: 960px;
    --gutter: 28px;
}

/* ============================================
   Reset & Base
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-weight: 400;
    font-size: clamp(15px, 1vw, 17px);
    line-height: 1.8;
    color: var(--nordic-silver);
    background-color: var(--midnight-depth);
    overflow-x: hidden;
}

/* ============================================
   Grid-Lines Editorial Overlay
   ============================================ */
.grid-lines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0;
    transition: opacity 400ms ease;
    background-image:
        repeating-linear-gradient(
            to right,
            transparent,
            transparent calc(20% - 0.5px),
            rgba(192, 200, 216, 0.08) calc(20% - 0.5px),
            rgba(192, 200, 216, 0.08) 20%
        ),
        repeating-linear-gradient(
            to bottom,
            transparent,
            transparent calc(120px - 0.5px),
            rgba(192, 200, 216, 0.08) calc(120px - 0.5px),
            rgba(192, 200, 216, 0.08) 120px
        );
}

.grid-lines.visible {
    opacity: 1;
}

/* ============================================
   Nordic Cover (100vh Hero)
   ============================================ */
.nordic-cover {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at center, var(--midnight-depth) 0%, var(--deep-navy) 100%);
    z-index: 2;
    overflow: hidden;
}

.cover-content {
    text-align: center;
    z-index: 3;
    padding: 0 20px;
}

.domain-title {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: clamp(48px, 8vw, 96px);
    color: var(--nordic-silver);
    letter-spacing: -0.02em;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 800ms ease, transform 800ms ease;
}

.domain-title.visible {
    opacity: 1;
    transform: translateY(0);
}

.cover-tagline {
    font-weight: 400;
    font-size: clamp(14px, 1.2vw, 18px);
    color: var(--nordic-silver);
    opacity: 0;
    max-width: 520px;
    margin: 24px auto 0;
    transition: opacity 600ms ease 600ms;
}

.cover-tagline.visible {
    opacity: 0.7;
}

.cover-panels {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    pointer-events: none;
    z-index: 1;
}

.duotone-panel {
    filter: grayscale(0.7) sepia(0.2) brightness(0.9) contrast(1.1);
    transition: filter 500ms ease;
    overflow: hidden;
}

.duotone-panel:hover {
    filter: grayscale(0.5) sepia(0.3) brightness(0.95) contrast(1.1);
}

.panel-left {
    position: absolute;
    left: -60px;
    top: 50%;
    transform: translateY(-50%);
    width: 280px;
    opacity: 0;
    transition: opacity 600ms ease 300ms;
}

.panel-left.visible {
    opacity: 0.4;
}

.panel-left svg {
    width: 100%;
    height: auto;
}

.panel-right {
    position: absolute;
    right: -60px;
    top: 50%;
    transform: translateY(-50%);
    width: 280px;
    opacity: 0;
    transition: opacity 600ms ease 500ms;
}

.panel-right.visible {
    opacity: 0.35;
}

.panel-right svg {
    width: 100%;
    height: auto;
}

/* ============================================
   Editorial Labels
   ============================================ */
.editorial-label {
    display: inline-block;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ice-blue);
    margin-bottom: 16px;
    transition: color 300ms ease;
}

.editorial-label:hover {
    color: var(--bright-coral);
}

/* ============================================
   Underline-Draw Luxury Emphasis
   ============================================ */
.underline-draw {
    height: 2px;
    background-color: var(--gold-accent);
    width: 0;
    transition: width 400ms ease;
    margin: 8px auto 0;
}

.underline-draw.drawn {
    width: 80px;
}

.spread-underline {
    margin: 8px 0 0 0;
}

.spread-underline.drawn {
    width: 60px;
}

.endpaper-underline {
    margin: 8px auto 0;
}

.endpaper-underline.drawn {
    width: 50px;
}

/* ============================================
   Editorial Spreads
   ============================================ */
.editorial-spread {
    position: relative;
    width: 100%;
    z-index: 2;
    padding: 80px 0;
    border-top: 1px solid rgba(192, 200, 216, 0.08);
}

.spread-inner {
    max-width: var(--spread-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 55fr 45fr;
    gap: var(--gutter);
    padding: 0 var(--gutter);
    align-items: center;
}

.spread-reversed .spread-inner {
    grid-template-columns: 45fr 55fr;
}

.spread-text {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 400ms ease, transform 400ms ease;
}

.spread-text.visible {
    opacity: 1;
    transform: translateY(0);
}

.spread-title {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: clamp(20px, 2.5vw, 36px);
    color: var(--nordic-silver);
    line-height: 1.3;
    margin-bottom: 4px;
}

.text-accent {
    color: var(--gold-accent);
}

.spread-body {
    margin-top: 20px;
    color: var(--nordic-silver);
    opacity: 0.8;
}

.spread-visual {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 400ms ease 100ms, transform 400ms ease 100ms;
}

.spread-visual.visible {
    opacity: 1;
    transform: translateY(0);
}

.spread-panel {
    width: 100%;
    border-left: 3px solid transparent;
    transition: border-left-color 300ms ease, filter 500ms ease;
    overflow: hidden;
}

.spread-panel:hover {
    border-left-color: var(--gold-accent);
}

.spread-panel svg {
    width: 100%;
    height: auto;
    display: block;
}

/* ============================================
   Endpaper / Footer
   ============================================ */
.endpaper {
    position: relative;
    width: 100%;
    z-index: 2;
    padding: 100px 0 80px;
    background: linear-gradient(to bottom, var(--midnight-depth), var(--deep-navy));
    border-top: 1px solid rgba(192, 200, 216, 0.12);
    text-align: center;
}

.endpaper-inner {
    max-width: var(--spread-width);
    margin: 0 auto;
    padding: 0 var(--gutter);
    position: relative;
}

.endpaper-grid-lines {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(192, 200, 216, 0.15), transparent);
}

.endpaper-domain {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: clamp(32px, 4vw, 60px);
    color: var(--nordic-silver);
    margin-top: 12px;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 400ms ease, transform 400ms ease;
}

.endpaper-domain.visible {
    opacity: 1;
    transform: translateY(0);
}

.endpaper-note {
    margin-top: 20px;
    font-size: clamp(14px, 1vw, 16px);
    color: var(--nordic-silver);
    opacity: 0.6;
}

.endpaper-divider {
    width: 40px;
    height: 1px;
    background-color: var(--gold-accent);
    margin: 32px auto;
    opacity: 0.5;
}

.endpaper-label-bottom {
    color: var(--duotone-warm);
    opacity: 0.6;
}

/* ============================================
   Hover: Grid-lines near hover brighten
   ============================================ */
.editorial-spread:hover ~ .grid-lines,
.nordic-cover:hover ~ .grid-lines {
    background-image:
        repeating-linear-gradient(
            to right,
            transparent,
            transparent calc(20% - 0.5px),
            rgba(192, 200, 216, 0.12) calc(20% - 0.5px),
            rgba(192, 200, 216, 0.12) 20%
        ),
        repeating-linear-gradient(
            to bottom,
            transparent,
            transparent calc(120px - 0.5px),
            rgba(192, 200, 216, 0.12) calc(120px - 0.5px),
            rgba(192, 200, 216, 0.12) 120px
        );
}

/* ============================================
   Underlined text gold text-shadow on hover
   ============================================ */
.spread-title:hover .text-accent {
    text-shadow: 0 0 20px rgba(208, 160, 56, 0.3);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .spread-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .spread-reversed .spread-inner {
        grid-template-columns: 1fr;
    }

    .spread-reversed .spread-visual {
        order: -1;
    }

    .panel-left,
    .panel-right {
        display: none;
    }

    .editorial-spread {
        padding: 60px 0;
    }

    .endpaper {
        padding: 80px 0 60px;
    }
}

@media (max-width: 480px) {
    .cover-content {
        padding: 0 16px;
    }

    .spread-inner {
        padding: 0 16px;
    }

    .endpaper-inner {
        padding: 0 16px;
    }
}