/* ========================================
   RAGU DIGITAL - AI Voice Assistant Landing Page
   Color Scheme: ORANGE
   ======================================== */

/* CSS Variables */
:root {
    /* Orange Color Scheme */
    --color-primary: #FF6B35;
    --color-primary-dark: #E55A2B;
    --color-primary-light: #FF8255;
    
    /* Neutrals */
    --color-bg: #0A0A0A;
    --color-bg-light: #111111;
    --color-bg-card: #161616;
    --color-text: #FFFFFF;
    --color-text-muted: #A0A0A0;
    --color-border: #2A2A2A;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-max: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.nav-container,
.hero-container,
.proof-container,
.problem-container,
.features-container,
.roi-container,
.pricing-container,
.testimonials-container,
.faq-container,
.cta-container,
.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

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

.nav-links a {
    color: var(--color-text-muted);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-cta {
    background: var(--color-primary);
    color: var(--color-text) !important;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    transition: background 0.2s, transform 0.2s;
}

.nav-cta:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: transform 0.2s;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    padding: 140px 0 80px;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(255, 107, 53, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
        var(--color-bg);
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: start;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 107, 53, 0.15);
    border: 1px solid rgba(255, 107, 53, 0.3);
    color: var(--color-primary-light);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.headline-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 540px;
}

/* Video Container */
.video-container {
    margin-bottom: 32px;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 16px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Demo Phone */
.demo-phone-section {
    margin-top: 32px;
}

.demo-text {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: 12px;
}

.demo-phone {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 107, 53, 0.1);
    border: 2px solid var(--color-primary);
    color: var(--color-primary-light);
    padding: 16px 28px;
    border-radius: 12px;
    font-size: 20px;
    font-weight: 700;
    transition: all 0.3s;
    position: relative;
}

.demo-phone:hover {
    background: rgba(255, 107, 53, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(255, 107, 53, 0.3);
}

.phone-icon {
    font-size: 24px;
}

.phone-ring {
    position: absolute;
    top: 50%;
    left: 24px;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--color-primary);
    animation: ring 2s ease-out infinite;
    opacity: 0;
}

@keyframes ring {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.8;
    }
    100% {
        transform: translate(-50%, -50%) scale(2);
        opacity: 0;
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.4);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(255, 107, 53, 0);
    }
}

/* ========================================
   OPT-IN FORM
   ======================================== */
.hero-form {
    position: sticky;
    top: 100px;
}

.form-card {
    background: rgba(22, 22, 22, 0.9);
    backdrop-filter: blur(12px);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 40px;
}

.form-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.form-subtitle {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 14px 16px;
    color: var(--color-text);
    font-size: 15px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.15);
}

.form-group input::placeholder {
    color: #666;
}

.form-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-text);
    border: none;
    border-radius: 10px;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.4);
}

.btn-arrow {
    transition: transform 0.2s;
}

.form-submit:hover .btn-arrow {
    transform: translateX(4px);
}

.form-disclaimer {
    text-align: center;
    font-size: 12px;
    color: var(--color-text-muted);
    margin-top: 16px;
}

/* ========================================
   SOCIAL PROOF
   ======================================== */
.social-proof {
    background: var(--color-bg-light);
    padding: 24px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.proof-scroll {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

.proof-item {
    color: var(--color-text-muted);
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ========================================
   PROBLEM SECTION
   ======================================== */
.problem-section {
    padding: var(--section-padding);
}

.section-title {
    text-align: center;
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 18px;
    margin-bottom: 60px;
}

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

.stat-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 40px 32px;
    text-align: center;
    transition: transform 0.3s, border-color 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 107, 53, 0.5);
}

.stat-number {
    font-size: 64px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.stat-symbol {
    font-size: 40px;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-currency {
    font-size: 36px;
    font-weight: 600;
    color: var(--color-primary);
    vertical-align: top;
}

.stat-label {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-top: 16px;
}

/* ========================================
   FEATURES SECTION
   ======================================== */
.features-section {
    padding: var(--section-padding);
    background: var(--color-bg-light);
}

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

.feature-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 107, 53, 0.5);
    box-shadow: 0 20px 40px rgba(255, 107, 53, 0.1);
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: 14px;
    line-height: 1.6;
}

/* ========================================
   ROI CALCULATOR
   ======================================== */
.roi-section {
    padding: var(--section-padding);
}

.roi-card {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(255, 107, 53, 0.05) 100%);
    border: 1px solid rgba(255, 107, 53, 0.3);
    border-radius: 24px;
    padding: 60px;
    text-align: center;
}

.roi-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
}

.roi-subtitle {
    color: var(--color-text-muted);
    font-size: 16px;
    margin-bottom: 48px;
}

.calculator {
    max-width: 800px;
    margin: 0 auto;
}

.calc-inputs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.calc-group {
    text-align: center;
}

.calc-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 12px;
}

.input-wrapper {
    display: flex;
    align-items: center;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
}

.input-wrapper input {
    flex: 1;
    background: transparent;
    border: none;
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    padding: 16px 8px;
}

.input-wrapper input:focus {
    outline: none;
}

.calc-btn {
    background: var(--color-bg-card);
    border: none;
    color: var(--color-text);
    font-size: 20px;
    padding: 16px 20px;
    cursor: pointer;
    transition: background 0.2s;
}

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

.calc-results {
    display: flex;
    gap: 32px;
    justify-content: center;
}

.result-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 24px 48px;
    text-align: center;
}

.result-item.highlight {
    background: rgba(255, 107, 53, 0.15);
    border-color: var(--color-primary);
}

.result-label {
    display: block;
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.result-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary);
}

/* ========================================
   PRICING SECTION
   ======================================== */
.pricing-section {
    padding: var(--section-padding);
    background: var(--color-bg-light);
}

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

.pricing-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 40px 32px;
    position: relative;
    transition: transform 0.3s;
}

.pricing-card:hover {
    transform: translateY(-5px);
}

.pricing-card.featured {
    border-color: var(--color-primary);
    background: linear-gradient(180deg, rgba(255, 107, 53, 0.1) 0%, var(--color-bg-card) 100%);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-text);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
}

.pricing-header h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.price .currency {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text-muted);
}

.price .amount {
    font-size: 56px;
    font-weight: 800;
}

.price .period {
    font-size: 16px;
    color: var(--color-text-muted);
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 14px;
    color: var(--color-text-muted);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-cta {
    display: block;
    text-align: center;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 14px 24px;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.2s;
}

.pricing-cta:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.pricing-card.featured .pricing-cta {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.pricing-card.featured .pricing-cta:hover {
    background: var(--color-primary-dark);
}

/* ========================================
   TESTIMONIALS
   ======================================== */
.testimonials-section {
    padding: var(--section-padding);
}

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

.testimonial-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
}

.testimonial-stars {
    color: #FFB800;
    font-size: 18px;
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 24px;
    color: var(--color-text-muted);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-info strong {
    font-size: 14px;
    font-weight: 600;
}

.author-info span {
    font-size: 12px;
    color: var(--color-text-muted);
}

/* ========================================
   FAQ SECTION
   ======================================== */
.faq-section {
    padding: var(--section-padding);
    background: var(--color-bg-light);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 24px;
}

.faq-question {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.faq-answer {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
    padding: var(--section-padding);
}

.cta-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: 24px;
    padding: 80px 40px;
    text-align: center;
}

.cta-card h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-card p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--color-text);
    color: var(--color-primary);
    padding: 18px 36px;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 700;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.cta-subtext {
    font-size: 14px;
    opacity: 0.8;
    margin-top: 16px;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--color-bg-light);
    border-top: 1px solid var(--color-border);
    padding: 60px 0 24px;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    height: 36px;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--color-text-muted);
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--color-text);
}

.footer-column a {
    display: block;
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 12px;
    transition: color 0.2s;
}

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

.footer-bottom {
    grid-column: 1 / -1;
    border-top: 1px solid var(--color-border);
    padding-top: 24px;
    margin-top: 40px;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--color-text-muted);
}

/* ========================================
   RESPONSIVE STYLES
   ======================================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-form {
        position: static;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .stats-grid,
    .features-grid,
    .pricing-grid,
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .calc-inputs {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .calc-results {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .stats-grid,
    .features-grid,
    .pricing-grid,
    .testimonials-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .roi-card {
        padding: 40px 24px;
    }
    
    .result-item {
        padding: 20px 32px;
    }
    
    .result-value {
        font-size: 28px;
    }
    
    .cta-card {
        padding: 60px 24px;
    }
    
    .cta-card h2 {
        font-size: 28px;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        gap: 40px;
    }
}

@media (max-width: 480px) {
    .form-card {
        padding: 24px;
    }
    
    .demo-phone {
        font-size: 16px;
        padding: 12px 20px;
    }
    
    .stat-number {
        font-size: 48px;
    }
    
    .price .amount {
        font-size: 42px;
    }
}