@tailwind base;
@tailwind components;
@tailwind utilities;

/* ========================================================= */
/* [WORKFLOW: SHIFT STACK DUAL-THEME ENGINE]                 */
/* ========================================================= */

/* STRUCTURAL TOKENS (Immutable) */
:root {
    --radius-lg: 24px;
    --radius-md: 12px;
    --font-heading: 'Inter', -apple-system, sans-serif;
}

/* 
 * 1. DEFAULT THEME: STEALTH (Dark Mode)
 * Based on Porsche/Apple Configurator aesthetics.
 */
:root {
    --bg-void: #09090b;             /* Charcoal */
    --surface-carbon: rgba(24, 24, 27, 0.4); 
    --surface-glass-solid: rgba(24, 24, 27, 0.7);
    --surface-hover: rgba(24, 24, 27, 0.8);
    
    --border-glass: rgba(255, 255, 255, 0.05); /* Barely visible */
    --border-hover: rgba(255, 255, 255, 0.15);
    
    --text-primary: #ededed;
    --text-dim: #a1a1aa;
    
    --accent-pure: #ffffff;
    --accent-glow: rgba(255, 255, 255, 0.1);
    
    --danger: #ef4444;
    
    --shadow-soft: 0 20px 40px rgba(0, 0, 0, 0.4);
    --shadow-float: 0 10px 20px rgba(0, 0, 0, 0.2);
    
    /* Input aesthetics */
    --input-bg: rgba(0,0,0,0.2);
    --input-border: rgba(255,255,255,0.05);
}

/* 
 * 2. ALTERNATE THEME: LUXURY LIGHT (Triggered)
 * Based on pristine/clinical corporate sites.
 */
.theme-light {
    --bg-void: #f9fafb;             /* Zinc / Off-White */
    --surface-carbon: rgba(255, 255, 255, 0.6); /* Frosted White */
    --surface-glass-solid: rgba(255, 255, 255, 0.9);
    --surface-hover: rgba(255, 255, 255, 0.95);
    
    --border-glass: rgba(15, 23, 42, 0.08); /* Faint dark border */
    --border-hover: rgba(15, 23, 42, 0.2);
    
    --text-primary: #0f172a;        /* Slate / Near Black */
    --text-dim: #64748b;
    
    --accent-pure: #0f172a;         /* High-contrast pure slate */
    --accent-glow: rgba(15, 23, 42, 0.1);
    
    --shadow-soft: 0 20px 40px rgba(15, 23, 42, 0.06);
    --shadow-float: 0 10px 20px rgba(15, 23, 42, 0.04);
    
    /* Input aesthetics */
    --input-bg: rgba(255,255,255,0.8);
    --input-border: rgba(15, 23, 42, 0.1);
}

/* ========================================================= */
/* BASE STYLES                                               */
/* ========================================================= */

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font-heading);
    background-color: var(--bg-void); /* Handled dynamically by variable engine */
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    display: flex;
    justify-content: center;
    padding: 24px 16px;
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease; /* Smooth toggle */
}

/* Master wrapper that accepts the .theme-light tag */
.vault-container {
    width: 100%;
    max-width: 800px;
    position: relative;
    min-height: 500px;
}

/* ========================================================= */
/* THEME TOGGLE (QA Utility)                                  */
/* ========================================================= */
.theme-switch-btn {
    position: fixed; bottom: 24px; right: 24px; z-index: 1000;
    width: 48px; height: 48px; border-radius: 50%;
    background: var(--surface-glass-solid); border: 1px solid var(--border-glass);
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; color: var(--text-primary);
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-float); transition: all 0.3s ease;
}
.theme-switch-btn:hover { transform: scale(1.1); }
.theme-switch-btn svg { width: 24px; height: 24px; transition: transform 0.5s ease; }

/* ========================================================= */
/* WORKFLOW: PROGRESS BAR                                     */
/* ========================================================= */
.progress-wrap { margin-bottom: 32px; transition: opacity 0.4s ease; }
.progress-wrap.hidden { opacity: 0; pointer-events: none; }
.progress-track {
    width: 100%; height: 2px;
    background: var(--border-glass);
    border-radius: 4px; overflow: hidden; margin-bottom: 8px;
}
.progress-fill {
    height: 100%; background: var(--accent-pure);
    width: 0%; transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 0 10px var(--accent-glow);
}
.progress-labels {
    display: flex; justify-content: space-between;
    font-size: 10px; font-weight: 600;
    color: var(--text-dim); letter-spacing: 1px;
}

/* ========================================================= */
/* WORKFLOW: STAGE CROSSFADES                                 */
/* ========================================================= */
.stage {
    position: absolute; top: 0; left: 0; width: 100%;
    opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity 0.5s ease, transform 0.5s ease;
    transform: scale(0.98);
}
.stage.active {
    opacity: 1; visibility: visible; pointer-events: all;
    transform: scale(1); position: relative;
}

/* ========================================================= */
/* HEADER & BADGES                                            */
/* ========================================================= */
.vault-header { margin-bottom: 40px; text-align: center; }
.covert-badge {
    display: inline-block; background: var(--border-glass);
    color: var(--text-dim); border: 1px solid var(--border-glass);
    font-size: 11px; font-weight: 600; letter-spacing: 1px;
    padding: 6px 14px; border-radius: 9999px; margin-bottom: 16px;
}
.vault-header h1 { 
    font-size: 36px; font-weight: 600; letter-spacing: -0.04em; 
    color: var(--accent-pure); margin-bottom: 12px; 
}
.vault-header p { 
    color: var(--text-dim); font-size: 15px; font-weight: 400;
    max-width: 500px; margin: 0 auto; line-height: 1.6; 
}

/* ========================================================= */
/* THE GRID (BAIT)                                            */
/* ========================================================= */
.bento-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.bento-card {
    background: var(--surface-carbon); 
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); padding: 12px; text-align: left;
    cursor: pointer; backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    color: var(--text-primary); width: 100%;
}
.bento-card:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover); 
    transform: translateY(-4px); 
    box-shadow: var(--shadow-soft);
}

.blur-chamber {
    position: relative; width: 100%; height: 180px;
    border-radius: var(--radius-md); overflow: hidden; background: #000;
}
.tease-image {
    width: 100%; height: 100%; object-fit: cover;
    filter: blur(14px) grayscale(60%); opacity: 0.5;
    transition: filter 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s ease, transform 0.6s ease;
    will-change: filter, opacity, transform;
}
.bento-card:hover .tease-image { 
    filter: blur(4px) grayscale(20%); opacity: 0.8; 
    transform: scale(1.05);
}

.lock-overlay { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 2; }
.sleek-lock {
    width: 40px; height: 40px; color: #ffffff; /* Must stay white to pop against the image */ opacity: 0.5;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.bento-card:hover .sleek-lock { transform: scale(1.1); opacity: 1; color: #fff;}

.card-meta { margin-top: 16px; padding-bottom: 8px; padding-left: 8px; display: flex; flex-direction: column; gap: 4px; }
.meta-tag { font-size: 13px; font-weight: 500; letter-spacing: 0.5px; color: var(--text-primary); }
.decrypt-prompt { font-size: 13px; color: var(--text-dim); font-weight: 400; transition: color 0.3s; }
.bento-card:hover .decrypt-prompt { color: var(--accent-pure); }

/* ========================================================= */
/* QUIZ FUNNEL SLIDE MECHANICS                               */
/* ========================================================= */
.quiz-viewport {
    width: 100%; overflow: hidden; position: relative;
    background: var(--surface-carbon); border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg); backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px); box-shadow: var(--shadow-soft);
}

.quiz-track {
    display: flex; width: 300%;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform;
}

.quiz-panel { width: 33.3333%; flex-shrink: 0; padding: 40px; }

.panel-inner { opacity: 0.3; transition: opacity 0.6s ease; pointer-events: none; }
.quiz-panel.active-panel .panel-inner { opacity: 1; pointer-events: all; }

.step-label {
    font-size: 11px; font-weight: 600; color: var(--text-dim);
    margin-bottom: 12px; letter-spacing: 1px;
}
.quiz-panel h3 { font-size: 26px; font-weight: 600; margin-bottom: 8px; letter-spacing: -0.02em; color: var(--accent-pure); }
.panel-sub { font-size: 15px; color: var(--text-dim); margin-bottom: 32px; line-height: 1.6; }

/* Visual Selectors (Minimalist Bento) */
.bento-selectors { display: flex; flex-direction: column; gap: 12px; }
.selector-btn {
    width: 100%; background: var(--border-glass); border: 1px solid var(--border-glass);
    border-radius: var(--radius-md); padding: 18px 24px; color: var(--text-primary);
    font-size: 16px; font-weight: 500; text-align: left; display: flex;
    align-items: center; gap: 16px; cursor: pointer; transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.outline-icon { width: 24px; height: 24px; color: var(--text-dim); transition: color 0.3s; }
.selector-btn:hover {
    background: var(--border-hover); border-color: var(--border-hover);
    transform: translateX(4px); box-shadow: var(--shadow-float);
}
.selector-btn:hover .outline-icon { color: var(--accent-pure); }

/* Forms */
.form-header { margin-bottom: 24px; }
.form-header h2 { font-size: 22px; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 6px; }
.form-header p { color: var(--text-dim); font-size: 14px; }
.mono-highlight {
    font-size: 13px; font-weight: 500; color: var(--text-primary); background: var(--border-hover);
    padding: 4px 8px; border-radius: 6px;
}

.input-row { display: flex; gap: 20px; }
.input-row .input-group { flex: 1; }
@media(max-width: 600px) { .input-row { flex-direction: column; gap: 0; } }
.input-group { margin-bottom: 24px; }
.input-group label {
    display: block; font-size: 12px; font-weight: 500;
    color: var(--text-dim); margin-bottom: 10px; letter-spacing: 0.5px;
}

.terminal-input {
    width: 100%; background: var(--input-bg); border: 1px solid var(--input-border);
    color: var(--text-primary); padding: 16px; border-radius: var(--radius-md);
    font-size: 16px; font-family: var(--font-heading); transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.terminal-input:focus { outline: none; border-color: var(--border-hover); background: var(--surface-carbon); }
.terminal-input.invalid { border-color: var(--danger); background: rgba(239, 68, 68, 0.05); }

.inline-error {
    display: block; color: var(--danger); font-size: 12px; font-weight: 500;
    margin-top: 6px; letter-spacing: 0.5px;
}
.inline-error.hidden { display: none; }

/* Buttons */
.btn-back { background: none; border: none; color: var(--text-dim); font-size: 14px; display: flex; align-items: center; gap: 8px; cursor: pointer; margin-bottom: 24px; font-weight: 500; transition: color 0.3s; }
.btn-back svg { width: 18px; height: 18px; }
.btn-back:hover { color: var(--text-primary); }

.btn-authorize {
    width: 100%; background: var(--accent-pure); color: var(--bg-void); border: none;
    padding: 16px; border-radius: var(--radius-md); font-size: 16px; font-weight: 600;
    cursor: pointer; transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); display: flex; justify-content: center; align-items: center; margin-top: 12px;
}
.btn-authorize:hover:not(.disabled) { transform: scale(1.02); box-shadow: 0 0 20px var(--accent-glow); }
.btn-authorize.disabled { background: var(--border-glass); color: var(--text-dim); cursor: not-allowed; }

.spinner-auth { width: 20px; height: 20px; border: 2px solid var(--text-dim); border-top-color: var(--bg-void); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { 100% { transform: rotate(360deg); } }

/* Success */
.success-envelope { text-align: center; max-width: 500px; margin: 60px auto; }
.success-icon-wrap {
    width: 80px; height: 80px; background: var(--border-glass); border-radius: 50%;
    display: flex; align-items: center; justify-content: center; margin: 0 auto 32px;
    border: 1px solid var(--border-glass); box-shadow: 0 0 40px var(--accent-glow);
}
.sleek-check { width: 40px; height: 40px; color: var(--accent-pure); }
.success-envelope h2 { font-size: 32px; font-weight: 600; margin-bottom: 12px; letter-spacing: -0.02em; color: var(--text-primary);}
.success-envelope p { color: var(--text-dim); margin-top: 24px; line-height: 1.6; }