/* 
   ==========================================================================
   💎 EDUHUB AI PREMIUM DESIGN SYSTEM CONFIGURATION
   Theme: Linear Pro Max Dark Aesthetic (2026)
   Generated by: Autonomous SaaS CEO Agent
   Standards: Linear, Stripe & Raycast Dark Aesthetics (2026)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Montserrat:wght@600;700;800;900&display=swap');

:root {
    --bg-global: #030712;
    --text-main: #FFFFFF;
    --text-muted: #94A3B8;
    --font-head: Montserrat, system-ui, sans-serif;
    --font-body: Inter, system-ui, sans-serif;
    --linear-glass: rgba(17, 24, 39, 0.7);
    --linear-border: rgba(255, 255, 255, 0.08);
    --linear-accent-blue: #2563EB;
    --linear-accent-indigo: #4F46E5;
    --linear-accent-purple: #7C3AED;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-global);
    color: var(--text-main);
}

h1, h2, h3, h4, .font-heading {
    font-family: var(--font-head);
}

/* ==========================================================================
   PREMIUM GLASS & CARD COMPONENTS
   ========================================================================== */
.premium-card {
    background: rgba(17, 24, 39, 0.7);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.premium-card:hover {
    border-color: #4F46E5;
    box-shadow: 0 0 25px rgba(79, 70, 229, 0.2), 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    transform: translateY(-2px);
}

/* ==========================================================================
   GLOW BUTTON CTA (LINEAR / STRIPE STYLE)
   ========================================================================== */
.glow-btn-cta {
    background: linear-gradient(135deg, #2563EB 0%, #4F46E5 50%, #7C3AED 100%);
    border-radius: 12px;
    font-weight: 700;
    transition: all 0.2s ease-in-out;
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.glow-btn-cta:hover {
    transform: scale(1.02);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
}

.glow-btn-cta:active {
    transform: scale(0.98);
}

/* ==========================================================================
   SANDBOX CHAT INPUT (ULTRA-DARK ELEVATED)
   ========================================================================== */
.sandbox-chat-input {
    background-color: #0B0F19 !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    color: #F8FAFC !important;
    transition: all 0.25s ease !important;
}

.sandbox-chat-input:focus {
    border: 1px solid #3B82F6 !important;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.2) !important;
    outline: none !important;
}

.sandbox-chat-input::placeholder {
    color: #475569;
}

/* ==========================================================================
   INTERACTIVE SEGMENTED TABS CONTROLLER (LINEAR / RAYCAST STYLE)
   ========================================================================== */
.segmented-tabs-container {
    display: flex;
    background: rgba(11, 15, 25, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    padding: 6px;
    gap: 6px;
    backdrop-filter: blur(16px);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6), inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

.segmented-tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    font-family: var(--font-head);
    font-size: 13px;
    font-weight: 700;
    color: #94A3B8;
    background: transparent;
    border-radius: 12px;
    border: 1px solid transparent;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
    user-select: none;
}

.segmented-tab-btn:hover {
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.04);
}

.segmented-tab-btn.active-tab-hub {
    color: #FFFFFF;
    background: linear-gradient(135deg, #1D4ED8 0%, #2563EB 100%);
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.35);
    border-color: rgba(96, 165, 250, 0.4);
}

.segmented-tab-btn.active-tab-resume {
    color: #FFFFFF;
    background: linear-gradient(135deg, #047857 0%, #059669 100%);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.35);
    border-color: rgba(52, 211, 153, 0.4);
}

.segmented-tab-btn.active-tab-factories {
    color: #FFFFFF;
    background: linear-gradient(135deg, #6D28D9 0%, #7C3AED 100%);
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.35);
    border-color: rgba(192, 132, 252, 0.4);
}

/* Crossfade transitions for Tab Panes */
.tab-pane-crossfade {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    display: none;
}

.tab-pane-crossfade.pane-visible {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   PAYWALL BLUR EFFECT & GRADIENT MASK (LAST 70% OF RESPONSE)
   ========================================================================== */
.paywall-container {
    position: relative;
    overflow: hidden;
}

.paywall-blur-mask {
    filter: blur(5px);
    user-select: none;
    pointer-events: none;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.4) 40%, rgba(0, 0, 0, 0) 90%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.4) 40%, rgba(0, 0, 0, 0) 90%);
    opacity: 0.55;
    max-height: 240px;
    overflow: hidden;
}

.paywall-floating-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    padding-bottom: 24px;
    background: linear-gradient(to bottom, rgba(3, 7, 18, 0) 0%, rgba(3, 7, 18, 0.85) 60%, rgba(3, 7, 18, 0.98) 100%);
    z-index: 20;
}

.paywall-glass-card {
    background: rgba(15, 23, 42, 0.88);
    border: 1px solid rgba(124, 58, 237, 0.45);
    box-shadow: 0 0 35px rgba(124, 58, 237, 0.3), 0 20px 40px -15px rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-radius: 20px;
    padding: 22px 26px;
    text-align: center;
    max-width: 520px;
    width: 92%;
    animation: paywallPulseGlow 3s infinite alternate ease-in-out;
}

@keyframes paywallPulseGlow {
    0% {
        box-shadow: 0 0 20px rgba(124, 58, 237, 0.2), 0 10px 25px rgba(0, 0, 0, 0.7);
    }
    100% {
        box-shadow: 0 0 38px rgba(124, 58, 237, 0.45), 0 15px 35px rgba(0, 0, 0, 0.9);
    }
}