/**
 * ╔══════════════════════════════════════════════════════════════════════════════╗
 * ║                         AT·OM - INFRASTRUCTURE INVISIBLE                      ║
 * ║                                                                              ║
 * ║            PROPRIÉTÉ EXCLUSIVE DE JONATHAN EMMANUEL RODRIGUE                 ║
 * ║                    TOUS DROITS RÉSERVÉS - BREVET EN COURS                    ║
 * ║                                    2025                                       ║
 * ╚══════════════════════════════════════════════════════════════════════════════╝
 */

/* ═══════════════════════════════════════════════════════════════════════════════
   VARIABLES CANON AT·OM
   ═══════════════════════════════════════════════════════════════════════════════ */
:root {
    --noir: #000000;
    --cobalt: #0047AB;
    --cobalt-glow: rgba(0, 71, 171, 0.4);
    --or: #D4AF37;
    --or-glow: rgba(212, 175, 55, 0.4);
    --blanc: #FFFFFF;
    --gris: #6B7280;
    --gris-fonce: #374151;
    --rouge: #DC143C;
    --vert: #10B981;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-left: env(safe-area-inset-left, 0px);
    --safe-right: env(safe-area-inset-right, 0px);
}

/* ═══════════════════════════════════════════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════════════════════════════════════════ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

/* ═══ Sprint F : Accessibility — Focus visible for keyboard users ═══ */
*:focus-visible {
    outline: 2px solid var(--or, #D4AF37) !important;
    outline-offset: 2px;
}
*:focus:not(:focus-visible) {
    outline: none !important;
}

/* ═══ Sprint F : Skip link for keyboard navigation ═══ */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 999999;
    padding: 0.75rem 1.5rem;
    background: var(--or, #D4AF37);
    color: #000;
    font-weight: 600;
    border-radius: 0 0 8px 8px;
    text-decoration: none;
    transition: top 0.2s;
}
.skip-link:focus {
    top: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: var(--noir);
    color: var(--blanc);
    min-height: 100vh;
    min-height: 100dvh;
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
    touch-action: manipulation;
}

/* ═══════════════════════════════════════════════════════════════════════════════
   VIEWS SYSTEM
   ═══════════════════════════════════════════════════════════════════════════════ */
.view {
    position: fixed;
    inset: 0;
    padding: var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left);
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s var(--ease-out), visibility 0.5s;
    z-index: 1;
}

.view.active {
    opacity: 1;
    visibility: visible;
    z-index: 10;
}

/* ═══════════════════════════════════════════════════════════════════════════════
   LE SCEAU - ENGAGEMENT SOUVERAIN
   ═══════════════════════════════════════════════════════════════════════════════ */
#sceau-view {
    align-items: center;
    justify-content: center;
    background: var(--noir);
}

.frequency-indicator {
    position: absolute;
    top: calc(var(--safe-top) + 60px);
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-weight: 300;
    letter-spacing: 0.15em;
    color: var(--gris);
    transition: color 0.3s, text-shadow 0.3s;
}

.frequency-indicator.active { color: var(--cobalt); }
.frequency-indicator.harmony {
    color: var(--or);
    text-shadow: 0 0 30px var(--or-glow);
}

#freq-value {
    font-size: 2rem;
    font-weight: 200;
}

.freq-unit {
    font-size: 1rem;
    opacity: 0.7;
}

#sceau {
    position: relative;
    width: 220px;
    height: 220px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sceau-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.ring-bg {
    fill: none;
    stroke: var(--gris-fonce);
    stroke-width: 2;
}

.ring-progress {
    fill: none;
    stroke: var(--cobalt);
    stroke-width: 3;
    stroke-linecap: round;
    stroke-dasharray: 565.48;
    stroke-dashoffset: 565.48;
    transition: stroke 0.3s;
    filter: drop-shadow(0 0 10px var(--cobalt-glow));
}

#sceau.success .ring-progress {
    stroke: var(--or);
    filter: drop-shadow(0 0 20px var(--or-glow));
}

.sceau-core {
    position: absolute;
    width: 40px;
    height: 40px;
    background: var(--gris-fonce);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s var(--ease-out);
}

#sceau.activating .sceau-core {
    background: var(--cobalt);
    box-shadow: 0 0 30px var(--cobalt-glow);
    transform: scale(1.1);
}

#sceau.success .sceau-core {
    width: 80px;
    height: 80px;
    background: var(--or);
    box-shadow: 0 0 50px var(--or-glow);
}

.sceau-symbol {
    font-size: 1.2rem;
    color: var(--blanc);
    opacity: 0.5;
    transition: opacity 0.3s;
}

#sceau.activating .sceau-symbol,
#sceau.success .sceau-symbol { opacity: 0; }

.sceau-label {
    position: absolute;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.4em;
    color: var(--noir);
    opacity: 0;
    transition: opacity 0.4s;
}

#sceau.success .sceau-label { opacity: 1; }

.instruction {
    position: absolute;
    bottom: calc(var(--safe-bottom) + 140px);
    font-size: 0.9rem;
    color: var(--gris);
    letter-spacing: 0.08em;
    transition: opacity 0.3s;
}

#sceau-view.completing .instruction { opacity: 0; }

.progress-track {
    position: absolute;
    bottom: calc(var(--safe-bottom) + 100px);
    width: 200px;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

#progress-bar {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--cobalt), var(--or));
    border-radius: 2px;
    transition: width 0.05s linear;
}

/* ═══════════════════════════════════════════════════════════════════════════════
   L'ESSAIM - 350 AGENTS
   ═══════════════════════════════════════════════════════════════════════════════ */
#essaim-view { background: var(--noir); }

.essaim-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    flex-shrink: 0;
}

.header-left, .header-right {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.agent-count {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--cobalt);
}

.agent-label, .freq-label {
    font-size: 0.8rem;
    color: var(--gris);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.header-center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.logo-text {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--blanc);
    opacity: 0.3;
}

#live-freq {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--or);
}

#swarm-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}

#swarm-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.module-navigation {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 20px;
    flex-shrink: 0;
}

.nav-module {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 22px;
    background: transparent;
    border: 1px solid var(--gris-fonce);
    border-radius: 16px;
    color: var(--gris);
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
}

.nav-module:active,
.nav-module:hover {
    border-color: var(--cobalt);
    color: var(--cobalt);
    background: rgba(0, 71, 171, 0.1);
}

.nav-icon { font-size: 1.2rem; }
.nav-text {
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* Agent Panel */
.panel {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: rgba(0, 0, 0, 0.95);
    border: 1px solid var(--cobalt);
    border-radius: 16px;
    padding: 24px 32px;
    min-width: 280px;
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s var(--ease-out);
}

.panel.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.panel-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: none;
    border: none;
    color: var(--gris);
    font-size: 1.5rem;
    cursor: pointer;
}

.sphere-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--cobalt);
    border-radius: 20px;
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.panel h3 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 6px;
}

.panel p {
    font-size: 0.85rem;
    color: var(--gris);
    margin-bottom: 12px;
}

.panel-frequency {
    font-size: 0.9rem;
    color: var(--or);
}

/* ═══════════════════════════════════════════════════════════════════════════════
   MODULES VIEW
   ═══════════════════════════════════════════════════════════════════════════════ */
#module-view { background: var(--noir); }

.module-header {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 20px 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    flex-shrink: 0;
}

.btn-back {
    display: flex;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    color: var(--cobalt);
    font-size: 0.9rem;
    cursor: pointer;
}

#module-title {
    font-size: 1.3rem;
    font-weight: 400;
    letter-spacing: 0.25em;
    color: var(--or);
}

#module-body {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.module-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 16px;
}

.module-card h3 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--cobalt);
    margin-bottom: 8px;
    letter-spacing: 0.1em;
}

.module-card p {
    font-size: 0.85rem;
    color: var(--gris);
    line-height: 1.5;
}

/* Frequency Display (Alchimie) */
.freq-display {
    text-align: center;
    padding: 40px 0;
}

.freq-display .value {
    font-size: 4rem;
    font-weight: 200;
    color: var(--cobalt);
}

.freq-display .label {
    font-size: 1rem;
    letter-spacing: 0.3em;
    color: var(--or);
    margin-top: 10px;
}

.freq-slider {
    width: 100%;
    max-width: 400px;
    margin: 30px auto 0;
    display: block;
    -webkit-appearance: none;
    height: 4px;
    background: var(--gris-fonce);
    border-radius: 2px;
    outline: none;
}

.freq-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--cobalt);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 15px var(--cobalt-glow);
}

/* Flow Display (Flux) */
.flow-container {
    display: flex;
    justify-content: center;
    gap: 60px;
    padding: 40px 0;
}

.flow-item { text-align: center; }

.flow-arrow {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.flow-arrow.in { color: var(--vert); }
.flow-arrow.out { color: var(--or); }

.flow-label {
    font-size: 0.8rem;
    color: var(--gris);
    letter-spacing: 0.1em;
}

.equilibre-bar {
    max-width: 300px;
    margin: 30px auto 0;
    text-align: center;
}

.equilibre-label {
    font-size: 0.8rem;
    color: var(--gris);
    letter-spacing: 0.15em;
    margin-bottom: 10px;
}

.equilibre-track {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.equilibre-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--cobalt), var(--or));
    border-radius: 4px;
    width: 75%;
}

/* Health Display (Sante) */
.health-metrics {
    display: flex;
    justify-content: center;
    gap: 50px;
    padding: 30px 0;
}

.health-item { text-align: center; }

.health-icon {
    font-size: 2rem;
    margin-bottom: 8px;
}

.health-value {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--cobalt);
}

.health-label {
    font-size: 0.8rem;
    color: var(--gris);
    letter-spacing: 0.1em;
    margin-top: 4px;
}

.breathing-circle {
    width: 80px;
    height: 80px;
    border: 2px solid var(--cobalt);
    border-radius: 50%;
    margin: 30px auto;
    animation: breathe 4s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.4); opacity: 1; }
}

.breathing-text {
    text-align: center;
    font-size: 0.85rem;
    color: var(--gris);
}

/* ═══════════════════════════════════════════════════════════════════════════════
   PROTOCOL-999 - BRISE-CIRCUIT
   ═══════════════════════════════════════════════════════════════════════════════ */
#protocol-view {
    background: rgba(0, 0, 0, 0.97);
    align-items: center;
    justify-content: center;
}

.protocol-container {
    text-align: center;
    padding: 40px;
    max-width: 400px;
}

.protocol-warning { margin-bottom: 40px; }

.warning-icon {
    font-size: 3rem;
    color: var(--rouge);
    display: block;
    margin-bottom: 20px;
}

.protocol-warning h1 {
    font-size: 1.8rem;
    font-weight: 300;
    letter-spacing: 0.4em;
    color: var(--rouge);
    margin-bottom: 10px;
}

.protocol-warning p {
    font-size: 0.9rem;
    color: var(--gris);
    letter-spacing: 0.1em;
}

.dispersion-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 30px;
}

.dispersion-level {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: transparent;
    border: 1px solid var(--gris-fonce);
    border-radius: 12px;
    color: var(--gris);
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
}

.dispersion-level:hover {
    border-color: var(--or);
    color: var(--or);
}

.dispersion-level.critical {
    border-color: var(--rouge);
    color: var(--rouge);
}

.dispersion-level.critical:hover {
    background: var(--rouge);
    color: var(--blanc);
}

.dispersion-level.selected {
    border-color: var(--or);
    background: var(--or);
    color: var(--noir);
}

.level-percent {
    font-size: 1.2rem;
    font-weight: 500;
}

.level-name {
    font-size: 0.85rem;
    letter-spacing: 0.1em;
}

.confirm-section {
    margin-top: 20px;
    transition: all 0.3s var(--ease-out);
}

.confirm-section.hidden {
    opacity: 0;
    visibility: hidden;
    height: 0;
    margin: 0;
    overflow: hidden;
}

#confirm-input {
    width: 100%;
    padding: 16px;
    background: transparent;
    border: 1px solid var(--rouge);
    border-radius: 8px;
    color: var(--blanc);
    font-size: 1rem;
    text-align: center;
    letter-spacing: 0.2em;
    margin-bottom: 16px;
}

#confirm-input::placeholder { color: var(--gris); }

.btn-execute {
    width: 100%;
    padding: 16px;
    background: var(--rouge);
    border: none;
    border-radius: 8px;
    color: var(--blanc);
    font-size: 1rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-execute:hover { background: #FF1744; }

.btn-cancel {
    margin-top: 30px;
    padding: 12px 30px;
    background: transparent;
    border: 1px solid var(--gris-fonce);
    border-radius: 8px;
    color: var(--gris);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-cancel:hover {
    border-color: var(--blanc);
    color: var(--blanc);
}

/* ═══════════════════════════════════════════════════════════════════════════════
   PARTICLES
   ═══════════════════════════════════════════════════════════════════════════════ */
#particles-container {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 100;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--or);
    border-radius: 50%;
    animation: particle-explode 1.2s var(--ease-out) forwards;
}

@keyframes particle-explode {
    0% { transform: translate(0, 0) scale(1); opacity: 1; }
    100% { transform: translate(var(--tx), var(--ty)) scale(0.3); opacity: 0; }
}

/* ═══════════════════════════════════════════════════════════════════════════════
   UTILITIES & RESPONSIVE
   ═══════════════════════════════════════════════════════════════════════════════ */
.hidden {
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

@media (max-width: 480px) {
    #sceau { width: 180px; height: 180px; }
    .module-navigation { gap: 8px; }
    .nav-module { padding: 12px 16px; }
    .nav-icon { font-size: 1rem; }
    .nav-text { font-size: 0.8rem; }
}

@media (min-width: 768px) {
    #sceau { width: 260px; height: 260px; }
    .sceau-label { font-size: 1.2rem; }
    .module-navigation { gap: 20px; }
    .nav-module { padding: 18px 32px; }
}

@media (min-width: 1024px) {
    #sceau { width: 300px; height: 300px; }
}