/* ==========================================================================
   THE 3D PARTICLE ENGINE STYLING SYSTEM — CONCEITO.
   Bespoke Glacial Space & Luxury Gold Minimalist UI (Awwwards Style)
   ========================================================================== */



:root {
    /* Color Palette - Premium Frozen Grays & Luxury Gold */
    --bg-black: #000000;
    --bg-dark-gray: #05080c; /* Deep Ice Charcoal */
    --border-gray: #0d121c; /* Frozen Edge */
    --border-gray-light: #1b2535;
    
    --text-pure-white: #ffffff;
    --text-white: #e8ecf2; /* Frosted White */
    --text-muted: #8d98a7;
    --text-dark: #4c5767;
    
    --accent-gold: #d4af37;
    --accent-gold-glow: rgba(212, 175, 55, 0.35);
    --accent-ice: #58a6ff;
    --accent-ice-glow: rgba(88, 166, 255, 0.25);
    
    /* Layout Variables */
    --transition-standard: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* ==========================================================================
   RESET & FOUNDATION
   ========================================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    cursor: none; /* Premium customized mouse */
}

html, body {
    width: 100%;
    overflow-x: hidden;
    background-color: var(--bg-black);
    background-image: radial-gradient(circle at 50% 50%, #040913 0%, #000000 100%);
    background-attachment: fixed;
    color: var(--text-white);
    font-family: 'Space Grotesk', sans-serif;
    line-height: 1.5;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar {
    width: 3px;
}
::-webkit-scrollbar-track {
    background: var(--bg-black);
}
::-webkit-scrollbar-thumb {
    background: var(--text-dark);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-gold);
}

/* Selection */
::selection {
    background: var(--accent-gold);
    color: var(--bg-black);
}

/* Canvas Background */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1; /* Renders in background behind overlay UI but ahead of backdrop gradient */
    filter: url(#glacial-frost-displacement); /* High-fidelity ice block distortion simulation */
    will-change: transform;
}

/* ==========================================================================
   PREMIUM CUSTOM CURSOR (Igloo dots)
   ========================================================================== */

#custom-cursor {
    position: fixed;
    width: 5px;
    height: 5px;
    background-color: var(--text-pure-white);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s, background-color 0.2s;
}

#custom-cursor-follower {
    position: fixed;
    width: 32px;
    height: 32px;
    border: 1px solid var(--text-dark);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: transform 0.08s ease-out, width 0.3s, height 0.3s, border-color 0.3s, background-color 0.3s;
}

/* Hover Interactive */
.hovering #custom-cursor {
    width: 10px;
    height: 10px;
    background-color: var(--accent-gold);
}

.hovering #custom-cursor-follower {
    width: 50px;
    height: 50px;
    border-color: var(--accent-gold);
    background-color: rgba(212, 175, 55, 0.03);
}

/* ==========================================================================
   HEADER (igloo.inc style)
   ========================================================================== */

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 30px 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
    opacity: 0;
    transform: translateY(-20px);
    background: linear-gradient(to bottom, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.logo-link {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.header-logo-svg {
    filter: drop-shadow(0px 0px 4px rgba(212, 175, 55, 0.15));
    transition: var(--transition-fast);
}

.header-logo-svg:hover {
    transform: scale(1.03);
    filter: drop-shadow(0px 0px 8px rgba(212, 175, 55, 0.35));
}

.system-status-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: monospace;
    font-size: 11px;
    color: var(--text-dark);
    letter-spacing: 0.1em;
}

.status-pulse {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #00ff66;
    box-shadow: 0 0 8px #00ff66;
    animation: status-pulse-glow 1.5s infinite alternate ease-in-out;
}

@keyframes status-pulse-glow {
    0% { opacity: 0.4; }
    100% { opacity: 1; }
}

.header-cta {
    background: transparent;
    color: var(--text-pure-white);
    border: 1px solid var(--border-gray-light);
    padding: 10px 24px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    letter-spacing: 0.02em;
    transition: var(--transition-fast);
}

.header-cta:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    box-shadow: 0 0 15px var(--accent-gold-glow);
}

/* ==========================================================================
   EDITORIAL PORTAL OVERLAYS (UI Overlay Layouts)
   ========================================================================== */

/* Left Dynamic Column */
.editorial-left-col {
    position: fixed;
    top: 50%;
    left: 80px;
    transform: translateY(-50%);
    width: 420px;
    z-index: 10;
    pointer-events: none;
}

.editorial-block {
    opacity: 0;
    transform: translateY(30px);
    display: none;
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    flex-direction: column;
    gap: 18px;
}

.editorial-block.active {
    display: flex;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.editorial-num {
    font-family: monospace;
    font-size: 11px;
    color: var(--accent-gold);
    letter-spacing: 0.15em;
    font-weight: 600;
}

.editorial-heading {
    font-family: 'Syne', sans-serif;
    font-size: 34px;
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-pure-white);
    letter-spacing: -0.02em;
}

.editorial-copy {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.6;
}

.editorial-quote {
    font-family: monospace;
    font-size: 11px;
    color: var(--accent-gold);
    opacity: 0.85;
    letter-spacing: 0.05em;
    border-left: 2px solid var(--accent-gold);
    padding-left: 10px;
    margin-top: 5px;
}

.editorial-cta-box {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 15px;
}

.editorial-cta-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-pure-white);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid var(--border-gray-light);
    padding: 6px 0;
    width: fit-content;
    transition: var(--transition-fast);
}

.editorial-cta-link:hover {
    color: var(--accent-gold);
    border-color: var(--accent-gold);
}

.editorial-cta-link i {
    font-size: 10px;
    transition: transform 0.3s;
}

.editorial-cta-link:hover i {
    transform: translateX(4px);
}

/* Right Column: Molecular Variation Selector */
.molecular-selector-wrapper {
    position: fixed;
    top: 50%;
    right: 80px;
    transform: translateY(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 20px;
    text-align: right;
    align-items: flex-end;
    opacity: 0;
    scale: 0.9;
    visibility: hidden;
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                scale 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                visibility 0.8s;
}

.molecular-selector-wrapper.active {
    opacity: 1;
    scale: 1;
    visibility: visible;
}

.molecular-selector-label {
    font-family: monospace;
    font-size: 9px;
    color: var(--text-dark);
    letter-spacing: 0.2em;
    margin-bottom: 10px;
}

.molecular-selector {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.selector-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    padding: 6px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition-fast);
    flex-direction: row-reverse;
}

.selector-btn:hover {
    color: var(--text-pure-white);
}

.selector-btn.active {
    color: var(--accent-gold);
    font-weight: 700;
}

.btn-indicator {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: var(--text-dark);
    transition: background-color 0.4s, box-shadow 0.4s;
}

.selector-btn.active .btn-indicator {
    background-color: var(--accent-gold);
    box-shadow: 0 0 8px var(--accent-gold);
}

.selector-arrows {
    display: flex;
    gap: 12px;
    margin-top: 15px;
}

.arrow-btn {
    background: transparent;
    border: 1px solid var(--border-gray-light);
    width: 34px;
    height: 34px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.arrow-btn:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

/* Fixed footer and bottom elements */
.footer-minimal-fixed {
    position: fixed;
    bottom: 30px;
    left: 80px;
    z-index: 10;
    font-size: 11px;
    color: var(--text-dark);
    letter-spacing: 0.05em;
    pointer-events: none;
}

.scroll-down-notice {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    pointer-events: none;
    transition: opacity 0.5s;
}

.scroll-down-notice span {
    font-size: 10px;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--text-dark);
}

.indicator-bar {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--text-dark) 0%, transparent 100%);
    position: relative;
    overflow: hidden;
}

.indicator-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 15px;
    background: var(--accent-gold);
    animation: scroll-indicator-flow 2s infinite ease-in-out;
}

@keyframes scroll-indicator-flow {
    0% { top: -15px; }
    100% { top: 40px; }
}

/* ==========================================================================
   CINEMATIC PRELOADER STYLES (igloo.inc style)
   ========================================================================== */

.preloader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #000000;
    background-image: radial-gradient(circle at center, #050b14 0%, #000000 100%);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), visibility 1.2s;
}

.preloader-overlay.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-glow {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, rgba(88, 166, 255, 0.03) 50%, transparent 100%);
    filter: blur(60px);
    pointer-events: none;
    animation: preloader-ambient-pulse 6s infinite alternate ease-in-out;
}

@keyframes preloader-ambient-pulse {
    0% {
        transform: translate(-10%, -10%) scale(1.0);
        opacity: 0.7;
    }
    100% {
        transform: translate(10%, 10%) scale(1.2);
        opacity: 1;
    }
}

.preloader-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 600px;
    padding: 0 40px;
    text-align: center;
}

.preloader-tech-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-family: monospace;
    font-size: 10px;
    color: var(--text-dark);
    letter-spacing: 0.15em;
    margin-bottom: 50px;
    text-align: left;
    width: 100%;
    max-width: 320px;
    opacity: 0.6;
}

.tech-log-line {
    overflow: hidden;
    white-space: nowrap;
    border-right: 1px solid transparent;
}

.preloader-logo-wrapper {
    margin-bottom: 50px;
    opacity: 0;
    transform: scale(0.95);
    filter: blur(5px);
    transition: opacity 1.5s cubic-bezier(0.16, 1, 0.3, 1), transform 1.5s cubic-bezier(0.16, 1, 0.3, 1), filter 1.5s;
}

.preloader-logo-wrapper.visible {
    opacity: 1;
    transform: scale(1);
    filter: blur(0px);
}

.preloader-logo-svg {
    filter: drop-shadow(0px 0px 12px rgba(212, 175, 55, 0.35));
}

.preloader-status-container {
    width: 100%;
    max-width: 280px;
    margin-bottom: 16px;
}

.preloader-loading-bar-wrapper {
    position: relative;
    width: 100%;
    height: 2px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 1px;
    overflow: hidden;
    margin-bottom: 10px;
}

.preloader-loading-bar-fill {
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background: linear-gradient(to right, var(--accent-gold), var(--text-pure-white));
    box-shadow: 0 0 8px var(--accent-gold);
    transition: width 0.1s linear;
}

.preloader-percentage-text {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.2em;
    font-family: monospace;
}

.preloader-sub-status {
    height: 16px;
}

.scramble-status-text {
    font-size: 9px;
    color: var(--text-dark);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ==========================================================================
   RESPONSIVE DESIGN RULES
   ========================================================================== */

@media (max-width: 1024px) {
    .main-header {
        padding: 24px 40px;
    }
    .editorial-left-col {
        left: 40px;
        width: 320px;
    }
    .molecular-selector-wrapper {
        right: 40px;
    }
    .footer-minimal-fixed {
        left: 40px;
    }
}

@media (max-width: 768px) {
    /* Disable premium interactive cursor on mobile */
    #custom-cursor, #custom-cursor-follower {
        display: none;
    }
    * {
        cursor: auto !important;
    }
    
    .main-header {
        padding: 20px 24px;
    }
    .system-status-indicator {
        display: none;
    }
    
    .editorial-left-col {
        position: absolute;
        top: auto;
        bottom: 110px;
        left: 24px;
        right: 24px;
        width: calc(100% - 48px);
        transform: none;
        z-index: 10;
        max-height: 250px;
    }
    
    .editorial-heading {
        font-size: 24px;
    }
    
    .editorial-copy {
        font-size: 13px;
        line-height: 1.5;
    }
    
    .molecular-selector-wrapper {
        position: absolute;
        top: 90px;
        right: 24px;
        left: 24px;
        width: calc(100% - 48px);
        transform: none;
        align-items: center;
        text-align: center;
    }
    
    .molecular-selector {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .selector-btn {
        flex-direction: row;
        font-size: 9px;
        padding: 4px 8px;
        border: 1px solid var(--border-gray-light);
        border-radius: 4px;
        gap: 6px;
    }
    
    .selector-btn.active {
        border-color: var(--accent-gold);
    }
    
    .molecular-selector-label, .selector-arrows {
        display: none;
    }
    
    .footer-minimal-fixed {
        left: 24px;
        bottom: 20px;
        font-size: 9px;
    }
    
    .scroll-down-notice {
        bottom: 50px;
    }
    
    .scroll-down-notice span {
        font-size: 8px;
    }
}

/* ==========================================================================
   CASES BACKGROUND REVEAL (Phase 3)
   ========================================================================== */
.cases-bg-reveal {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    pointer-events: none;
    z-index: 5; /* Atrás da tipografia (z-index 20) mas sobre o fundo da section */
    opacity: 0;
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 10s linear;
    transform: scale(1.0);
    filter: brightness(0.6) contrast(1.1); /* Darken so text stays legible */
}

.cases-bg-reveal.visible {
    opacity: 0.4; /* Atmosférico e sutil */
    transform: scale(1.03); /* Parallax drift lento */
}

/* ==========================================================================
   MOBILE RESPONSIVE OVERRIDES (Sections Layout)
   ========================================================================== */
@media (max-width: 768px) {
    /* 1. Hero adjustments */
    .editorial-left-col {
        top: 45% !important; /* Center more appropriately on small screens */
        transform: translateY(-50%) !important;
        text-align: center;
    }
    .editorial-block {
        align-items: center; /* Center the CTA */
    }
    .editorial-heading {
        font-size: clamp(40px, 12vw, 56px) !important;
        line-height: 1.1 !important;
    }
    .editorial-copy {
        font-size: 15px !important;
        padding: 0 10px;
    }
    .header-cta {
        display: none; /* Hide header connect btn on mobile to free up space */
    }

    /* 2. Manifesto Section */
    .manifesto-section {
        padding: 80px 24px !important;
    }
    .manifesto-container {
        grid-template-columns: 1fr !important;
        gap: 40px !important;
        text-align: center;
    }
    .manifesto-container > div:last-child {
        padding-top: 0 !important;
    }
    .manifesto-container h2 {
        font-size: clamp(40px, 12vw, 60px) !important;
        line-height: 1 !important;
    }
    .manifesto-container p {
        font-size: 16px !important;
    }

    /* 3. Cases Section */
    .cases-section {
        padding: 80px 24px 100px !important;
    }
    .cases-list .case-item {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
        padding: 40px 0 !important;
    }
    .cases-list .case-item h3 {
        font-size: 36px !important;
    }
    .cases-list .case-item p {
        padding-right: 0 !important;
        font-size: 15px !important;
    }
    /* Disable hover isolation effect for touch interfaces */
    .cases-list:hover .case-item {
        opacity: 1 !important;
    }
    
    /* 4. Closing Section */
    .closing-section {
        padding: 80px 24px !important;
    }
    .closing-section h2 {
        font-size: clamp(52px, 15vw, 80px) !important;
        margin-bottom: 30px !important;
    }
    .closing-section p {
        font-size: 16px !important;
        margin-bottom: 50px !important;
    }
    .closing-section a {
        padding: 16px 36px !important;
        font-size: 14px !important;
    }
    .closing-section > div:last-child {
        flex-direction: column;
        gap: 20px;
        bottom: 30px !important;
    }
    .closing-section > div:last-child > div {
        gap: 20px !important;
    }
}