/* ==========================================
   AddrProxy.com — Navy Metallic Swiss Design
   ========================================== */

/* --- CSS Custom Properties --- */
:root {
    --color-void: #0B1120;
    --color-abyss: #141E30;
    --color-steel: #1C2A3F;
    --color-lunar: #E8ECF1;
    --color-pewter: #8A9BAE;
    --color-chrome: #B0C4D8;
    --color-nickel: #D4DEE8;
    --color-brass: #8B7355;

    --font-display: 'Cormorant Garamond', Garamond, 'Times New Roman', serif;
    --font-body: 'EB Garamond', Garamond, 'Times New Roman', serif;
    --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

    --ease-authority: cubic-bezier(0.25, 0.1, 0.25, 1.0);
    --grid-gutter: 24px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--color-void);
    color: var(--color-lunar);
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.65;
    letter-spacing: 0.005em;
    overflow-x: hidden;
}

/* --- SVG Filters (Hidden) --- */
.svg-filters {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* --- Navigation Monogram --- */
.nav-monogram {
    position: fixed;
    top: 32px;
    left: 32px;
    z-index: 100;
}

.monogram {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-pewter);
    text-decoration: none;
    font-variant: small-caps;
    transition: color 0.3s var(--ease-authority);
}

.monogram:hover {
    color: var(--color-nickel);
}

/* --- Scroll Progress Indicator --- */
.scroll-indicator {
    position: fixed;
    top: 0;
    right: 16px;
    width: 1px;
    height: 100vh;
    background-color: transparent;
    z-index: 100;
}

.scroll-indicator-fill {
    width: 1px;
    height: 0%;
    background-color: var(--color-pewter);
    transition: height 0.15s linear;
}

/* --- Scene Base --- */
.scene {
    position: relative;
    width: 100%;
    overflow: hidden;
}

/* --- Marble Overlay (CSS-generated marble texture) --- */
.marble-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(176, 196, 216, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(138, 155, 174, 0.03) 0%, transparent 40%),
        radial-gradient(ellipse at 60% 80%, rgba(212, 222, 232, 0.03) 0%, transparent 45%),
        radial-gradient(ellipse at 40% 30%, rgba(176, 196, 216, 0.02) 0%, transparent 55%),
        repeating-linear-gradient(
            23deg,
            transparent,
            transparent 118px,
            rgba(176, 196, 216, 0.015) 118px,
            rgba(176, 196, 216, 0.015) 120px
        );
    z-index: 1;
}

.marble-overlay.revealed {
    opacity: 1;
}

.marble-overlay--subtle {
    background:
        radial-gradient(ellipse at 30% 40%, rgba(176, 196, 216, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 70%, rgba(138, 155, 174, 0.04) 0%, transparent 45%),
        radial-gradient(ellipse at 50% 20%, rgba(212, 222, 232, 0.03) 0%, transparent 50%),
        repeating-linear-gradient(
            23deg,
            transparent,
            transparent 118px,
            rgba(176, 196, 216, 0.02) 118px,
            rgba(176, 196, 216, 0.02) 120px
        );
}

.marble-overlay--medium {
    background:
        radial-gradient(ellipse at 25% 60%, rgba(176, 196, 216, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 75% 30%, rgba(138, 155, 174, 0.05) 0%, transparent 45%),
        radial-gradient(ellipse at 45% 75%, rgba(212, 222, 232, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 15%, rgba(176, 196, 216, 0.03) 0%, transparent 55%),
        repeating-linear-gradient(
            23deg,
            transparent,
            transparent 118px,
            rgba(176, 196, 216, 0.025) 118px,
            rgba(176, 196, 216, 0.025) 120px
        );
}

.marble-overlay--pronounced {
    background:
        radial-gradient(ellipse at 20% 45%, rgba(176, 196, 216, 0.07) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 25%, rgba(138, 155, 174, 0.06) 0%, transparent 45%),
        radial-gradient(ellipse at 50% 80%, rgba(212, 222, 232, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 35% 10%, rgba(176, 196, 216, 0.04) 0%, transparent 55%),
        repeating-linear-gradient(
            23deg,
            transparent,
            transparent 118px,
            rgba(176, 196, 216, 0.03) 118px,
            rgba(176, 196, 216, 0.03) 120px
        );
}

.marble-overlay--intense {
    background:
        radial-gradient(ellipse at 15% 50%, rgba(176, 196, 216, 0.09) 0%, transparent 50%),
        radial-gradient(ellipse at 85% 20%, rgba(138, 155, 174, 0.08) 0%, transparent 45%),
        radial-gradient(ellipse at 55% 85%, rgba(212, 222, 232, 0.07) 0%, transparent 50%),
        radial-gradient(ellipse at 40% 25%, rgba(176, 196, 216, 0.05) 0%, transparent 55%),
        radial-gradient(ellipse at 70% 60%, rgba(138, 155, 174, 0.04) 0%, transparent 40%),
        repeating-linear-gradient(
            23deg,
            transparent,
            transparent 118px,
            rgba(176, 196, 216, 0.04) 118px,
            rgba(176, 196, 216, 0.04) 120px
        );
}

/* --- Marble Lintel (Section Divider Bands) --- */
.marble-lintel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background:
        repeating-linear-gradient(
            23deg,
            transparent,
            transparent 80px,
            rgba(176, 196, 216, 0.03) 80px,
            rgba(176, 196, 216, 0.03) 82px
        );
    background-color: var(--color-abyss);
    z-index: 2;
}

/* ==========================================
   SCENE 1: THE FACADE
   ========================================== */
.scene--facade {
    height: 100vh;
    display: flex;
    align-items: flex-end;
    background-color: var(--color-void);
}

.facade-rule {
    position: absolute;
    top: 61.8%;
    right: 0;
    width: 40%;
    height: 1px;
    background-color: var(--color-chrome);
    z-index: 3;
    transform-origin: right center;
    transition: width 0.8s var(--ease-authority);
}

.facade-rule.expanded {
    width: 100%;
}

.facade-content {
    position: relative;
    z-index: 3;
    padding: 0 0 12vh 8vw;
    transition: transform 0.6s var(--ease-authority);
}

.facade-title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(2rem, 18vw, 18rem);
    letter-spacing: 0.04em;
    line-height: 1.05;
    color: var(--color-lunar);
    white-space: nowrap;
}

.facade-tagline {
    font-family: var(--font-body);
    font-style: italic;
    font-size: 14px;
    color: var(--color-pewter);
    margin-top: 16px;
    letter-spacing: 0.005em;
}

/* ==========================================
   VOID SPACERS (Between sections)
   ========================================== */
.void-spacer {
    position: relative;
    height: 40vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* --- Diagonal Slash Motif --- */
.diagonal-slash {
    position: absolute;
    width: 300px;
    height: 1px;
    background-color: var(--color-chrome);
    transform: rotate(-23deg);
    transform-origin: left center;
}

.diagonal-slash--anim {
    width: 0;
    transition: width 0.4s ease-out;
}

.diagonal-slash--anim.drawn {
    width: 300px;
}

.void-spacer--1 .diagonal-slash {
    left: 10%;
    top: 50%;
}

.void-spacer--2 .diagonal-slash {
    right: 10%;
    left: auto;
    top: 50%;
    transform-origin: right center;
    transform: rotate(23deg);
}

.void-spacer--3 .diagonal-slash {
    left: 15%;
    top: 45%;
}

.void-spacer--4 .diagonal-slash {
    right: 15%;
    left: auto;
    top: 55%;
    transform-origin: right center;
    transform: rotate(23deg);
}

.void-spacer--5 .diagonal-slash {
    left: 20%;
    top: 50%;
}

.void-spacer--6 .diagonal-slash {
    left: 50%;
    top: 50%;
    transform: translateX(-50%) rotate(-23deg);
    transform-origin: center center;
}

.diagonal-slash--final.drawn {
    width: 400px;
}

/* ==========================================
   SCENE 2: THE LOBBY
   ========================================== */
.scene--lobby {
    min-height: 90vh;
    padding: 10vh 0;
}

.lobby-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--grid-gutter);
    padding: 0 var(--grid-gutter);
    max-width: 1440px;
    margin: 0 auto;
    position: relative;
    z-index: 3;
    min-height: 70vh;
    align-items: start;
}

.lobby-content {
    grid-column: 2 / 7;
    padding-top: 8vh;
}

.lobby-pillar {
    grid-column: 10 / 11;
    height: 100%;
    position: relative;
}

.marble-pillar {
    width: 100%;
    height: 100%;
    min-height: 60vh;
    background-color: var(--color-abyss);
    background-image:
        radial-gradient(ellipse at 50% 30%, rgba(176, 196, 216, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 40% 70%, rgba(138, 155, 174, 0.04) 0%, transparent 50%),
        repeating-linear-gradient(
            23deg,
            transparent,
            transparent 40px,
            rgba(176, 196, 216, 0.03) 40px,
            rgba(176, 196, 216, 0.03) 42px
        );
}

.lobby-diagonal {
    position: absolute;
    bottom: 5vh;
    left: calc((100% / 12) * 6);
    width: 250px;
    height: 200px;
    z-index: 4;
}

.diagonal-slash--connector {
    top: 0;
    left: 0;
}

.diagonal-slash--connector.drawn {
    width: 250px;
}

/* ==========================================
   CHAMFERED BLOCKS
   ========================================== */
.chamfered-block {
    position: relative;
    padding: 48px 40px;
    background-color: var(--color-steel);
    border: 1px solid transparent;
    transition: border-color 0.6s var(--ease-authority);
}

/* Bottom-right chamfer */
.chamfered-block--br {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), calc(100% - 32px) 100%, 0 100%);
}

/* Bottom-left chamfer */
.chamfered-block--bl {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 32px 100%, 0 calc(100% - 32px));
}

/* Large chamfer for The Chamber */
.chamfered-block--large {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 48px), calc(100% - 48px) 100%, 0 100%);
    padding: 64px 56px;
}

/* Skeleton border-draw animation */
.chamfered-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 1px solid var(--color-steel);
    opacity: 0;
    transition: opacity 0.3s ease-out;
    pointer-events: none;
}

.skeleton-container.skeleton-active .chamfered-block::before {
    opacity: 1;
    animation: border-draw 0.6s ease-out forwards;
}

@keyframes border-draw {
    0% {
        clip-path: polygon(0 0, 0 0, 0 0, 0 0);
    }
    25% {
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
    }
    50% {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 0);
    }
    75% {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
    100% {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
}

/* Marble texture overlay on chamfered blocks */
.chamfered-block::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(176, 196, 216, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 30%, rgba(138, 155, 174, 0.02) 0%, transparent 40%);
    mix-blend-mode: overlay;
    opacity: 0.04;
    pointer-events: none;
}

/* ==========================================
   SKELETON LOADING SYSTEM
   ========================================== */
.skeleton-lines {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.skeleton-line {
    height: 8px;
    background-color: var(--color-abyss);
    width: 100%;
    opacity: 0;
}

.skeleton-line--heading {
    height: 16px;
    width: 60%;
    margin-bottom: 8px;
}

.skeleton-line--short {
    width: 65%;
}

/* Show skeleton when active */
.skeleton-container.skeleton-active .skeleton-lines {
    display: flex;
}

.skeleton-container.skeleton-active .skeleton-line {
    opacity: 1;
    animation: skeleton-pulse 1s ease-in-out infinite alternate;
}

@keyframes skeleton-pulse {
    0% { opacity: 0.4; }
    100% { opacity: 0.7; }
}

/* Hide real content initially */
.content-reveal {
    opacity: 0;
    position: relative;
}

/* Skeleton active: show skeleton, hide content */
.skeleton-container.skeleton-active .content-reveal {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

/* Content revealed: hide skeleton, show content */
.skeleton-container.content-visible .skeleton-lines {
    display: none;
}

.skeleton-container.content-visible .content-reveal {
    position: relative;
    opacity: 1;
    animation: wipe-reveal 0.4s ease-out forwards;
}

@keyframes wipe-reveal {
    0% {
        clip-path: inset(0 100% 0 0);
        opacity: 0;
    }
    1% {
        opacity: 1;
    }
    100% {
        clip-path: inset(0 0 0 0);
        opacity: 1;
    }
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
.section-heading {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    letter-spacing: 0.04em;
    line-height: 1.05;
    color: var(--color-lunar);
    margin-bottom: 28px;
}

.body-text {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 17px;
    line-height: 1.65;
    letter-spacing: 0.005em;
    color: var(--color-lunar);
    margin-bottom: 20px;
}

.body-text:last-child {
    margin-bottom: 0;
}

/* ==========================================
   CORRIDOR SECTIONS
   ========================================== */
.scene--corridor {
    min-height: 80vh;
    padding: 80px 0;
    display: flex;
    align-items: center;
}

.scene--corridor-left .corridor-content {
    max-width: 520px;
    margin-left: calc((100% / 12) * 1 + var(--grid-gutter));
    margin-right: auto;
    position: relative;
    z-index: 3;
}

.scene--corridor-right .corridor-content {
    max-width: 520px;
    margin-right: calc((100% / 12) * 1 + var(--grid-gutter));
    margin-left: auto;
    position: relative;
    z-index: 3;
}

/* ==========================================
   SCENE 4: THE CHAMBER
   ========================================== */
.scene--chamber {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
}

.chamber-content {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--grid-gutter);
    position: relative;
    z-index: 3;
}

/* Angular Quote */
.angular-quote {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 40px;
}

.angular-bracket {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: 4rem;
    line-height: 1;
    color: var(--color-pewter);
    flex-shrink: 0;
    user-select: none;
}

.pull-quote {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(1.25rem, 2.5vw, 2rem);
    line-height: 1.3;
    color: var(--color-nickel);
    font-style: italic;
    padding-top: 0.5rem;
}

.chamber-body {
    margin-top: 8px;
}

/* Brass Link (The single warm accent) */
.brass-link {
    display: inline-block;
    margin-top: 32px;
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 13px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-brass);
    text-decoration: none;
    border: 1px solid var(--color-brass);
    padding: 16px 32px;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
    transition: background-color 0.3s var(--ease-authority), color 0.3s var(--ease-authority);
    animation: brass-pulse 4s ease-in-out infinite;
}

@keyframes brass-pulse {
    0%, 100% { opacity: 0.85; }
    50% { opacity: 1.0; }
}

.brass-link:hover {
    background-color: var(--color-brass);
    color: var(--color-void);
}

.brass-arrow {
    display: inline-block;
    transition: transform 0.3s var(--ease-authority);
}

.brass-link:hover .brass-arrow {
    transform: translateX(4px);
}

/* ==========================================
   SCENE 5: THE VAULT
   ========================================== */
.scene--vault {
    height: 100vh;
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    background-color: var(--color-void);
    position: relative;
}

.vault-rule {
    position: absolute;
    top: 38.2%;
    left: 0;
    width: 40%;
    height: 1px;
    background-color: var(--color-chrome);
    z-index: 3;
    transition: width 0.8s var(--ease-authority);
}

.vault-content {
    position: relative;
    z-index: 3;
    padding: 12vh 8vw 0 0;
    text-align: right;
}

.vault-title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(2rem, 12vw, 12rem);
    letter-spacing: 0.04em;
    line-height: 1.05;
    color: var(--color-lunar);
}

.vault-tagline {
    font-family: var(--font-body);
    font-style: italic;
    font-size: 14px;
    color: var(--color-pewter);
    margin-bottom: 16px;
    letter-spacing: 0.005em;
}

.vault-final-slash {
    position: absolute;
    bottom: 20%;
    right: 15%;
    z-index: 3;
}

.diagonal-slash--vault.drawn {
    width: 350px;
}

/* ==========================================
   BACKGROUND DIAGONAL PATTERN (Global)
   ========================================== */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        repeating-linear-gradient(
            23deg,
            transparent,
            transparent 118px,
            rgba(176, 196, 216, 0.02) 118px,
            rgba(176, 196, 216, 0.02) 120px
        );
    pointer-events: none;
    z-index: 0;
}

/* ==========================================
   RESPONSIVE ADJUSTMENTS
   ========================================== */
@media (max-width: 1024px) {
    .lobby-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .lobby-content {
        grid-column: 1;
        padding: 0 24px;
    }

    .lobby-pillar {
        display: none;
    }

    .lobby-diagonal {
        display: none;
    }

    .scene--corridor-left .corridor-content,
    .scene--corridor-right .corridor-content {
        max-width: 600px;
        margin-left: 24px;
        margin-right: 24px;
    }
}

@media (max-width: 768px) {
    .facade-content {
        padding: 0 0 8vh 5vw;
    }

    .facade-title {
        font-size: clamp(2rem, 14vw, 8rem);
    }

    .vault-title {
        font-size: clamp(2rem, 10vw, 8rem);
    }

    .chamfered-block {
        padding: 32px 24px;
    }

    .chamfered-block--large {
        padding: 40px 32px;
    }

    .angular-bracket {
        font-size: 2.5rem;
    }

    .pull-quote {
        font-size: clamp(1.1rem, 2vw, 1.5rem);
    }

    .void-spacer {
        height: 25vh;
    }

    .nav-monogram {
        top: 20px;
        left: 20px;
    }

    .scene--corridor-left .corridor-content,
    .scene--corridor-right .corridor-content {
        margin-left: 16px;
        margin-right: 16px;
    }
}

@media (max-width: 480px) {
    .facade-title {
        font-size: clamp(2rem, 12vw, 5rem);
    }

    .vault-title {
        font-size: clamp(2rem, 9vw, 5rem);
    }

    .section-heading {
        font-size: clamp(1.3rem, 5vw, 2rem);
    }

    .body-text {
        font-size: 15px;
    }

    .angular-quote {
        flex-direction: column;
        gap: 8px;
    }

    .angular-bracket--close {
        align-self: flex-end;
    }
}