/* ==========================================================================
   FF SENSI PRO - 100% A-to-Z Revamped Neumorphic Soft Porcelain Light UI
   Theme: Snow Porcelain White (#f4f6fa), Squircle Cards, Soft Depth Shadows
   Header Dropdown Menu & Real Search Algorithm SEO Suite
   ========================================================================== */

:root {
    --bg-page: #f4f6fa;
    --bg-card: #ffffff;
    --bg-input: #eef2f7;
    --bg-input-focus: #ffffff;
    
    --shadow-soft: 8px 12px 24px rgba(165, 175, 195, 0.25), -8px -12px 24px rgba(255, 255, 255, 0.9);
    --shadow-inset: inset 3px 3px 8px rgba(165, 175, 195, 0.3), inset -3px -3px 8px rgba(255, 255, 255, 0.9);
    --border: #e2e8f0;

    /* Accents */
    --accent: #ff3b5c;
    --accent-gradient: linear-gradient(135deg, #ff3b5c 0%, #ff6b4a 100%);
    --accent-green: #10b981;
    --accent-blue: #2563eb;
    
    /* Text */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;

    /* Fonts */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-page);
    color: var(--text-body);
    font-family: var(--font-body);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f4f6fa;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

/* Floating Navbar */
.header-wrapper {
    max-width: 960px;
    margin: 24px auto 30px;
    padding: 0 20px;
}

.navbar {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 14px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.4px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 20px;
    list-style: none;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s ease;
}

.nav-menu a:hover, .nav-menu a.active {
    color: var(--accent);
}

.nav-menu a i {
    color: var(--accent);
}

/* Header Dropdown Menu (Fixed Mouse Gap) */
.dropdown-menu-item {
    position: relative;
    padding: 10px 0;
}

.dropdown-trigger {
    cursor: pointer;
}

.dropdown-popover {
    position: absolute;
    top: calc(100% - 4px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 10px;
    min-width: 230px;
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.12);
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 1000;
    
    /* Smooth Transition & Hover Bridge */
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

/* Invisible Mouse Hover Bridge */
.dropdown-popover::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 0;
    width: 100%;
    height: 20px;
    background: transparent;
}

.dropdown-menu-item:hover .dropdown-popover,
.dropdown-popover:hover {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.dropdown-popover a {
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.2s ease;
}

.dropdown-popover a:hover {
    background: #fff5f7;
    color: var(--accent);
}

/* Container */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 20px 60px;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 40px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--text-primary);
    line-height: 1.12;
    margin-bottom: 14px;
}

.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 580px;
    margin: 0 auto;
}

/* Ad Placement Banner */
.ad-slot {
    width: 100%;
    margin: 20px 0 40px;
    padding: 10px;
    background: #ffffff;
    border: 1px dashed var(--border);
    border-radius: 20px;
    text-align: center;
    min-height: 90px;
    box-shadow: var(--shadow-soft);
}

/* Selector Panel */
.dial-interactive-wrapper {
    background: var(--bg-card);
    border-radius: 32px;
    padding: 40px 30px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 40px;
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.dial-header {
    text-align: center;
    margin-bottom: 30px;
}

.dial-header h2 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.dial-header p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 3 Column Selector Cards */
.selector-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.selector-card {
    background: var(--bg-input);
    border-radius: 20px;
    padding: 20px;
    box-shadow: var(--shadow-inset);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.selector-card label {
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.clean-select, .clean-input {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px 14px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    outline: none;
    transition: all 0.2s ease;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0,0,0,0.02);
}

.clean-select:focus, .clean-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255, 59, 92, 0.15);
}

.suggestions-box {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: #ffffff;
    border: 1px solid var(--accent);
    border-radius: 14px;
    max-height: 160px;
    overflow-y: auto;
    z-index: 100;
    display: none;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.suggestion-row {
    padding: 10px 14px;
    font-size: 0.85rem;
    color: var(--text-primary);
    cursor: pointer;
    border-bottom: 1px solid var(--border);
}

.suggestion-row:hover {
    background: #fff5f7;
    color: var(--accent);
}

/* Master Action Button */
.btn-master-calculate {
    width: 100%;
    background: var(--accent-gradient);
    border: none;
    color: #ffffff;
    padding: 18px;
    border-radius: 18px;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 10px 25px rgba(255, 59, 92, 0.35);
    transition: all 0.2s ease;
}

.btn-master-calculate:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(255, 59, 92, 0.45);
}

/* Results Display Panel */
.results-display-panel {
    background: var(--bg-card);
    border-radius: 32px;
    padding: 35px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 40px;
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.results-placeholder {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

.results-placeholder i {
    font-size: 2.8rem;
    color: var(--accent);
    margin-bottom: 12px;
}

.sensi-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.sensi-card {
    background: var(--bg-input);
    border-radius: 20px;
    padding: 18px;
    box-shadow: var(--shadow-inset);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.sensi-card.featured {
    background: #fff5f7;
    border: 1px solid rgba(255, 59, 92, 0.2);
}

.sensi-label {
    font-size: 0.82rem;
    font-weight: 800;
    color: var(--text-secondary);
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.sensi-label i {
    color: var(--accent);
}

.sensi-val-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
}

.sensi-val-num {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text-primary);
}

.sensi-card.featured .sensi-val-num {
    color: var(--accent);
}

.secondary-badges-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.badge-card {
    background: var(--bg-input);
    border-radius: 18px;
    padding: 16px;
    text-align: center;
    box-shadow: var(--shadow-inset);
}

.badge-card .lbl {
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
}

.badge-card .val {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--accent-green);
}

.action-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.btn-action {
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 14px;
    border-radius: 14px;
    font-family: var(--font-body);
    font-size: 0.92rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
    box-shadow: 0 4px 10px rgba(0,0,0,0.02);
}

.btn-action:hover {
    background: #ffffff;
    border-color: var(--accent);
    color: var(--accent);
}

/* SEO Article & FAQs */
.seo-panel {
    background: var(--bg-card);
    border-radius: 32px;
    padding: 40px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 40px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.seo-panel h2 {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    margin: 26px 0 12px;
}

.seo-panel h2:first-child {
    margin-top: 0;
}

.seo-panel p {
    margin-bottom: 14px;
    line-height: 1.6;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.faq-item, .faq-card {
    background: var(--bg-input);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-inset);
}

.faq-header {
    padding: 16px 20px;
    font-weight: 700;
    color: var(--text-primary);
    font-size: 0.92rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.faq-header i {
    transition: transform 0.3s ease;
    color: var(--accent);
}

.faq-body {
    padding: 0 20px 16px;
    font-size: 0.88rem;
    color: var(--text-secondary);
    display: none;
    line-height: 1.6;
}

.faq-item.active .faq-body, .faq-card.active .faq-body {
    display: block !important;
}

.faq-item.active .faq-header i, .faq-card.active .faq-header i {
    transform: rotate(180deg);
}

/* Toast */
.toast-box {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--text-primary);
    color: #ffffff;
    padding: 12px 24px;
    border-radius: 14px;
    font-size: 0.88rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.toast-box.show {
    opacity: 1;
    transform: translateY(0);
}

/* Footer */
.footer-bar {
    border-top: 1px solid var(--border);
    padding: 30px 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.82rem;
}

@media (max-width: 850px) {
    .selector-cards-grid {
        grid-template-columns: 1fr;
    }
    .sensi-cards-grid {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 2.2rem;
    }
}