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

/* CSS DESIGN SYSTEM */
:root {
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Light Theme Variables (Default) */
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-border: rgba(255, 255, 255, 0.5);
    --card-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.04);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --primary-rgb: 99, 102, 241; /* indigo-500 */
    --secondary-rgb: 124, 58, 237; /* violet-600 */
    --accent-rgb: 6, 182, 212; /* cyan-500 */
    
    --primary: rgb(var(--primary-rgb));
    --secondary: rgb(var(--secondary-rgb));
    --accent: rgb(var(--accent-rgb));
    
    --primary-grad: linear-gradient(135deg, #6366f1 0%, #7c3aed 100%);
    --secondary-grad: linear-gradient(135deg, #f43f5e 0%, #f59e0b 100%);
    --accent-grad: linear-gradient(135deg, #06b6d4 0%, #2563eb 100%);
    
    --border-color: rgba(226, 232, 240, 0.8);
    --input-bg: rgba(255, 255, 255, 0.9);
    --input-border: #cbd5e1;
    --input-focus-border: #6366f1;
    --badge-bg: rgba(99, 102, 241, 0.1);
    --badge-text: #4f46e5;
    
    --transition-speed: 0.3s;
}

[data-theme="dark"] {
    /* Dark Theme Variables */
    --bg-primary: #030712;
    --bg-secondary: #0b0f19;
    --bg-gradient: linear-gradient(135deg, #030712 0%, #0b1329 100%);
    --card-bg: rgba(15, 23, 42, 0.5);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --primary-rgb: 129, 140, 248; /* indigo-400 */
    --secondary-rgb: 167, 139, 250; /* violet-400 */
    --accent-rgb: 34, 211, 238; /* cyan-400 */
    
    --primary: rgb(var(--primary-rgb));
    --secondary: rgb(var(--secondary-rgb));
    --accent: rgb(var(--accent-rgb));
    
    --primary-grad: linear-gradient(135deg, #818cf8 0%, #c084fc 100%);
    --secondary-grad: linear-gradient(135deg, #fb7185 0%, #fbbf24 100%);
    --accent-grad: linear-gradient(135deg, #22d3ee 0%, #60a5fa 100%);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --input-bg: rgba(15, 23, 42, 0.8);
    --input-border: rgba(255, 255, 255, 0.15);
    --input-focus-border: #818cf8;
    --badge-bg: rgba(129, 140, 248, 0.15);
    --badge-text: #a5b4fc;
}

/* GENERAL STYLES */
body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    background-image: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
    position: relative;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
}

p {
    color: var(--text-secondary);
    line-height: 1.6;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-speed);
}
a:hover {
    color: var(--secondary);
}

/* BACKDROP ANIMATED BLOBS */
.bg-blobs {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
    mix-blend-mode: multiply;
    animation: blob-float 20s infinite ease-in-out;
}

[data-theme="dark"] .blob {
    opacity: 0.08;
    mix-blend-mode: screen;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background-color: #6366f1;
    top: -100px;
    right: -50px;
    animation-delay: 0s;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background-color: #7c3aed;
    bottom: -150px;
    left: -100px;
    animation-delay: 5s;
}

.blob-3 {
    width: 350px;
    height: 350px;
    background-color: #06b6d4;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

@keyframes blob-float {
    0% {
        transform: translate(0px, 0px) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.95);
    }
    100% {
        transform: translate(0px, 0px) scale(1);
    }
}

/* GLASSMORPHISM CARD */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    box-shadow: var(--card-shadow);
    padding: 2.5rem;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease, background var(--transition-speed) ease, border var(--transition-speed) ease;
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.08);
}

[data-theme="dark"] .glass-card:hover {
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.6);
}

/* NAVBAR */
.navbar-glass {
    background: rgba(var(--primary-rgb), 0.03);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--card-border);
    transition: background var(--transition-speed), border var(--transition-speed);
}

.navbar-brand {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    background: var(--primary-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.5rem 1rem !important;
    border-radius: 8px;
    transition: color var(--transition-speed), background var(--transition-speed);
}

.nav-link:hover, .nav-link.active {
    color: var(--primary);
    background: rgba(var(--primary-rgb), 0.08);
}

/* THEME TOGGLER */
.theme-toggle-btn {
    border: none;
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background var(--transition-speed), color var(--transition-speed), transform 0.2s;
}

.theme-toggle-btn:hover {
    background: var(--primary-grad);
    color: #fff;
    transform: scale(1.05);
}

.theme-toggle-btn i {
    font-size: 1.2rem;
    transition: transform 0.5s ease;
}

[data-theme="dark"] .theme-toggle-btn i {
    transform: rotate(360deg);
}

/* BUTTONS */
.btn-primary-grad {
    background: var(--primary-grad);
    color: #fff;
    font-weight: 600;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 14px rgba(var(--primary-rgb), 0.3);
    transition: transform 0.2s, box-shadow 0.2s, filter 0.2s;
}

.btn-primary-grad:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.4);
    filter: brightness(1.05);
}

.btn-secondary-outline {
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    border: 2px solid var(--input-border);
    padding: 0.8rem 2rem;
    border-radius: 12px;
    transition: all var(--transition-speed);
}

.btn-secondary-outline:hover {
    border-color: var(--primary);
    background: rgba(var(--primary-rgb), 0.05);
    color: var(--primary);
}

/* HERO SECTION */
.hero-section {
    position: relative;
    padding: 8rem 0 6rem;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-particle-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.badge-glow {
    background: var(--badge-bg);
    color: var(--badge-text);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid rgba(var(--primary-rgb), 0.2);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.1);
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.15;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.15rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
}

/* INPUT FORM */
.form-floating > .form-control {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-primary);
    border-radius: 12px;
    transition: all var(--transition-speed);
}

.form-floating > .form-control:focus {
    background-color: var(--input-bg);
    border-color: var(--input-focus-border);
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.15);
}

.form-floating > label {
    color: var(--text-muted);
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
    color: var(--primary);
}

/* RESULTS DASHBOARD */
.results-container {
    display: none; /* Injected by calculator.js upon trigger */
}

.metric-card {
    border-radius: 18px;
    padding: 1.5rem;
    background: rgba(var(--primary-rgb), 0.03);
    border: 1px solid var(--card-border);
    text-align: center;
    transition: all var(--transition-speed);
}

.metric-card:hover {
    background: rgba(var(--primary-rgb), 0.05);
    border-color: rgba(var(--primary-rgb), 0.3);
}

.metric-value {
    font-size: 2rem;
    font-weight: 800;
    background: var(--primary-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.25rem;
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* CIRCULAR PROGRESS */
.progress-ring-container {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto;
}

.progress-ring-circle-bg {
    fill: transparent;
    stroke: var(--border-color);
    stroke-width: 14;
}

.progress-ring-circle {
    fill: transparent;
    stroke: url(#progress-gradient);
    stroke-width: 14;
    stroke-linecap: round;
    transform: rotate(-90deg);
    transform-origin: 50% 50%;
    transition: stroke-dashoffset 1s ease-out;
}

.progress-ring-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.progress-percent {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-primary);
}

.progress-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* COMPARISONS GRID */
.comparison-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    transition: all var(--transition-speed);
}

.comparison-card:hover {
    background: rgba(var(--primary-rgb), 0.05);
    border-color: rgba(var(--primary-rgb), 0.2);
    transform: translateY(-2px);
}

.comparison-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    flex-shrink: 0;
}

.comparison-card:nth-child(2n) .comparison-icon {
    background: rgba(var(--secondary-rgb), 0.1);
    color: var(--secondary);
}

.comparison-card:nth-child(3n) .comparison-icon {
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent);
}

.comparison-info h4 {
    font-size: 1.15rem;
    margin-bottom: 0.25rem;
}

.comparison-info p {
    font-size: 0.85rem;
    margin: 0;
}

/* RELATED TOOLS SECTION */
.tool-card {
    position: relative;
    overflow: hidden;
}

.tool-card .badge-coming-soon {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tool-card-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: var(--badge-bg);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

/* ACCORDIONS (FAQ) */
.accordion-item {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border) !important;
    border-radius: 16px !important;
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
}

.accordion-button {
    background-color: transparent !important;
    color: var(--text-primary) !important;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 1.25rem 1.5rem;
    box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
    background-color: rgba(var(--primary-rgb), 0.04) !important;
    color: var(--primary) !important;
}

.accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2364748b'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e") !important;
    transition: transform var(--transition-speed);
}

.accordion-button:not(.collapsed)::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%236366f1'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e") !important;
}

.accordion-body {
    padding: 1.25rem 1.5rem 1.75rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* FOOTER */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 5rem 0 2rem;
    margin-top: 5rem;
}

.footer-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    background: var(--primary-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
}

.footer-links-header {
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.footer-link {
    color: var(--text-secondary);
    display: block;
    margin-bottom: 0.75rem;
    transition: color var(--transition-speed), transform var(--transition-speed);
}

.footer-link:hover {
    color: var(--primary);
    transform: translateX(4px);
}

.newsletter-input {
    border-radius: 10px 0 0 10px;
    border-right: none;
}

.newsletter-btn {
    border-radius: 0 10px 10px 0;
}

/* CONTACT PAGE MAP PLACEHOLDER */
.map-placeholder {
    width: 100%;
    height: 350px;
    border-radius: 16px;
    background: var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    border: 1px dashed var(--input-border);
}

/* GOOGLE ADSENSE PLACEHOLDER */
.adsense-placeholder {
    margin: 2rem 0;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.02);
    border: 1px dashed var(--border-color);
    border-radius: 8px;
    text-align: center;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}

[data-theme="dark"] .adsense-placeholder {
    background: rgba(255, 255, 255, 0.02);
}

.adsense-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* RESPONSIVE DESIGN TWEAKS */
@media (max-width: 991.98px) {
    .hero-title {
        font-size: 2.8rem;
    }
    .hero-section {
        padding: 6rem 0 4rem;
    }
}

@media (max-width: 767.98px) {
    .hero-title {
        font-size: 2.2rem;
    }
    .glass-card {
        padding: 1.5rem;
    }
    .metric-value {
        font-size: 1.6rem;
    }
}

/* PRINT STYLE SHEET */
@media print {
    body {
        background: #fff !important;
        color: #000 !important;
    }
    .navbar-glass,
    .theme-toggle-btn,
    .bg-blobs,
    .hero-particle-canvas,
    .btn-primary-grad,
    .btn-secondary-outline,
    .adsense-placeholder,
    .tool-card,
    .hero-section,
    footer,
    #faq,
    .tool-section {
        display: none !important;
    }
    .glass-card {
        border: none !important;
        box-shadow: none !important;
        background: transparent !important;
        padding: 0 !important;
    }
    .results-container {
        display: block !important;
    }
    .progress-ring-circle {
        stroke: #000 !important;
    }
}