/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --accent: #14b8a6;
    --text-dark: #1e293b;
    --text-light: #64748b;
    --text-lighter: #94a3b8;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-shadow: 0 8px 32px rgba(31, 38, 135, 0.1);
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Background Decoration */
.bg-decoration {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.blob-1 {
    width: 600px;
    height: 600px;
    background: var(--gradient-1);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: var(--gradient-2);
    bottom: -150px;
    left: -100px;
    animation-delay: -7s;
}

.blob-3 {
    width: 400px;
    height: 400px;
    background: var(--gradient-3);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
    opacity: 0.3;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* Glass Effect */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: var(--glass-shadow);
}

.glass-inner {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 16px;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-dark);
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    padding: 80px 0 60px;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.highlight {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

/* Calculator Section */
.calculator-section {
    padding: 60px 0;
    position: relative;
    z-index: 1;
}

.calculator-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

.calculator-card,
.results-card {
    padding: 32px;
}

.calculator-title,
.results-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.calculator-subtitle {
    color: var(--text-light);
    margin-bottom: 32px;
    font-size: 0.9375rem;
}

/* Form Styles */
.form-section {
    margin-bottom: 28px;
}

.form-section:last-child {
    margin-bottom: 0;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.attendee-tiers {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tier-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    align-items: end;
}

.tier-input label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 8px;
}

.input-group {
    display: flex;
    align-items: center;
    background: var(--white);
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.3s ease;
}

.input-group:focus-within {
    border-color: var(--primary);
}

.btn-counter {
    width: 44px;
    height: 44px;
    border: none;
    background: #f1f5f9;
    color: var(--text-dark);
    font-size: 1.25rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-counter:hover {
    background: var(--primary);
    color: white;
}

.btn-counter:active {
    transform: scale(0.95);
}

.input-group input {
    flex: 1;
    height: 44px;
    border: none;
    text-align: center;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    background: transparent;
    outline: none;
    -moz-appearance: textfield;
}

.input-group input::-webkit-outer-spin-button,
.input-group input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.tier-input input[type="number"]:not(.input-group input) {
    width: 100%;
    height: 44px;
    padding: 0 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    background: var(--white);
    outline: none;
    transition: border-color 0.3s ease;
    -moz-appearance: textfield;
}

.tier-input input[type="number"]:not(.input-group input):focus {
    border-color: var(--primary);
}

.tier-input input[type="number"]::-webkit-outer-spin-button,
.tier-input input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.tier-input select {
    width: 100%;
    height: 44px;
    padding: 0 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-dark);
    background: var(--white);
    outline: none;
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.tier-input select:focus {
    border-color: var(--primary);
}

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

/* Frequency Options */
.frequency-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.freq-option {
    position: relative;
    cursor: pointer;
}

.freq-option input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.freq-option span {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 12px;
    background: var(--white);
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-light);
    transition: all 0.3s ease;
    text-align: center;
}

.freq-option:hover span {
    border-color: var(--primary);
    color: var(--primary);
}

.freq-option input:checked + span {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Results Card */
.main-cost-display {
    text-align: center;
    padding: 32px 0;
    margin-bottom: 24px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
}

.cost-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 8px;
    font-weight: 500;
}

.cost-value {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.cost-breakdown {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 12px;
}

.breakdown-label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

.breakdown-value {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* Annual Projection */
.annual-projection {
    padding: 20px;
    margin-bottom: 20px;
}

.annual-projection h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.annual-cost {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.annual-label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

.annual-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ef4444;
}

.meetings-per-year {
    font-size: 0.8125rem;
    color: var(--text-lighter);
    text-align: right;
}

/* Savings Tip */
.savings-tip {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: 12px;
    margin-bottom: 20px;
}

.tip-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.tip-content {
    font-size: 0.875rem;
    color: var(--text-dark);
    line-height: 1.5;
}

.tip-content strong {
    color: #16a34a;
}

/* Share Button */
.btn-share {
    width: 100%;
    height: 48px;
    border: none;
    border-radius: 12px;
    background: var(--gradient-1);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-share:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.btn-share:active {
    transform: translateY(0);
}

/* Features Section */
.features-section {
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 48px;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--text-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(31, 38, 135, 0.15);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.feature-card p {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* Stats Section */
.stats-section {
    padding: 60px 0;
    position: relative;
    z-index: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.big-stat {
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.big-stat:hover {
    transform: translateY(-4px);
}

.big-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.small-text {
    font-size: 1rem;
    font-weight: 700;
    -webkit-text-fill-color: initial;
    background: none;
    -webkit-background-clip: initial;
    background-clip: initial;
    color: var(--primary);
}

.big-label {
    font-size: 0.8125rem;
    color: var(--text-light);
    line-height: 1.4;
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-question {
    width: 100%;
    padding: 24px;
    border: none;
    background: transparent;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    transition: all 0.3s ease;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-light);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 24px;
}

.faq-answer p {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.7;
}

.faq-answer strong {
    color: var(--text-dark);
}

/* CTA Section */
.cta-section {
    padding: 60px 0 80px;
    position: relative;
    z-index: 1;
}

.cta-card {
    padding: 60px 40px;
    text-align: center;
    background: var(--gradient-1);
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.cta-card::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.cta-card h2 {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.cta-card p {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
    position: relative;
    z-index: 1;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 40px;
    background: white;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* Footer */
.footer {
    padding: 60px 0 32px;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.5);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9375rem;
    color: var(--text-light);
    max-width: 300px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-column h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.footer-column a {
    display: block;
    font-size: 0.875rem;
    color: var(--text-light);
    text-decoration: none;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: var(--primary);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(226, 232, 240, 0.5);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--text-lighter);
}

/* Responsive Design */
@media (max-width: 968px) {
    .calculator-wrapper {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 640px) {
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 60px 0 40px;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .calculator-card,
    .results-card {
        padding: 24px;
    }
    
    .tier-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .frequency-options {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cost-value {
        font-size: 2.25rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .cta-card {
        padding: 40px 24px;
    }
    
    .cta-card h2 {
        font-size: 1.5rem;
    }
    
    .big-number {
        font-size: 2rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.calculator-card,
.results-card {
    animation: fadeInUp 0.6s ease-out;
}

.results-card {
    animation-delay: 0.2s;
}