/* ============================================================
   PHAIR Trust Index — Cluster Wrapper Styles
   /assets/wrapper.css
   ============================================================ */

/* ===== DESIGN TOKENS ===== */
:root {
    --color-bg: #0B1220;
    --color-bg-elevated: rgba(11, 18, 32, 0.95);
    --color-surface: #16233D;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-strong: rgba(255, 255, 255, 0.16);
    
    --color-text-primary: #F5F7FA;
    --color-text-secondary: #B7C1CE;
    --color-text-muted: #7A8599;
    
    --color-accent-gold: #C9A227;
    --color-accent-gold-hover: #D4B02F;
    --color-accent-gold-soft: rgba(201, 162, 39, 0.15);
    --color-accent-gold-border: rgba(201, 162, 39, 0.3);
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    --header-height: 64px;
    
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-full: 9999px;
    
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text-primary);
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== HEADER ===== */
.wrapper-header {
    background: var(--color-bg-elevated);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 0 var(--space-lg);
    height: var(--header-height);
    flex-shrink: 0;
    z-index: 10;
    position: relative;
}

.wrapper-header__inner {
    max-width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
}

/* ===== LOGO ===== */
.wrapper-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
    transition: opacity var(--transition-fast);
    flex-shrink: 0;
}

.wrapper-logo:hover {
    opacity: 0.85;
}

.wrapper-logo__icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.wrapper-logo__text {
    display: flex;
    align-items: baseline;
    gap: 6px;
    line-height: 1;
}

.wrapper-logo__phair {
    color: var(--color-accent-gold);
    font-weight: 800;
    letter-spacing: 0.08em;
    font-size: 1.1rem;
}

.wrapper-logo__trustindex {
    color: var(--color-text-primary);
    font-weight: 500;
    letter-spacing: 0.12em;
    font-size: 0.75rem;
    text-transform: uppercase;
}

/* ===== CLUSTER INFO (CENTER) ===== */
.wrapper-header__info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    justify-content: center;
    min-width: 0;
}

.wrapper-header__cluster {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.wrapper-header__badge {
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 3px 10px;
    background: var(--color-accent-gold-soft);
    color: var(--color-accent-gold);
    border: 1px solid var(--color-accent-gold-border);
    border-radius: var(--radius-full);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
    flex-shrink: 0;
}

/* ===== BACK BUTTON ===== */
.wrapper-back {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 8px 16px;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
    flex-shrink: 0;
}

.wrapper-back:hover {
    color: var(--color-accent-gold);
    border-color: var(--color-accent-gold);
    background: rgba(201, 162, 39, 0.05);
}

/* ===== MAIN (IFRAME CONTAINER) ===== */
.wrapper-main {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: var(--color-bg);
}

#cluster-iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
    background: #FFFFFF;
}

/* ===== LOADER ===== */
.wrapper-loader {
    position: absolute;
    inset: var(--header-height) 0 0 0;
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    z-index: 5;
    transition: opacity var(--transition-slow);
    pointer-events: none;
}

.wrapper-loader__spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--color-accent-gold-soft);
    border-top-color: var(--color-accent-gold);
    border-radius: 50%;
    animation: wrapper-spin 800ms linear infinite;
}

@keyframes wrapper-spin {
    to { transform: rotate(360deg); }
}

.wrapper-loader__text {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    letter-spacing: 0.02em;
    font-weight: 500;
}

.wrapper-loader a {
    color: var(--color-accent-gold);
    text-decoration: underline;
    text-underline-offset: 2px;
    pointer-events: auto;
    font-weight: 500;
}

.wrapper-loader a:hover {
    color: var(--color-accent-gold-hover);
}

/* ===== NOSCRIPT FALLBACK ===== */
.wrapper-noscript {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    text-align: center;
    background: var(--color-bg);
    color: var(--color-text-secondary);
}

.wrapper-noscript p {
    font-size: 1rem;
    line-height: 1.6;
}

.wrapper-noscript a {
    color: var(--color-accent-gold);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.wrapper-noscript a:hover {
    color: var(--color-accent-gold-hover);
}

/* ===== RESPONSIVE — TABLET ===== */
@media (max-width: 900px) {
    .wrapper-header__info {
        display: none;
    }
    
    .wrapper-header {
        padding: 0 var(--space-md);
    }
}

/* ===== RESPONSIVE — MOBILE ===== */
@media (max-width: 640px) {
    .wrapper-logo__trustindex {
        display: none;
    }
    
    .wrapper-logo__phair {
        font-size: 1rem;
    }
    
    .wrapper-logo__icon {
        width: 28px;
        height: 28px;
    }
    
    .wrapper-back {
        padding: 6px 12px;
        font-size: 0.8125rem;
    }
    
    .wrapper-header {
        padding: 0 var(--space-sm);
    }
    
    .wrapper-loader__spinner {
        width: 40px;
        height: 40px;
    }
    
    .wrapper-loader__text {
        font-size: 0.875rem;
        padding: 0 var(--space-md);
        text-align: center;
    }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}