/* 
   JDK Cloud Mail - Developer-First Theme
   Aesthetic: Deep Cyber Dark Mode with Neon Blue & Indigo Purple Glow
*/

:root {
    --bg-dark: hsl(222, 47%, 6%); /* Obsidian Black */
    --bg-card: hsl(222, 47%, 10%); /* Deep Dark Slate */
    --bg-card-light: hsl(222, 47%, 14%);
    --primary-color: hsl(186, 100%, 50%); /* Electric Neon Blue */
    --secondary-color: hsl(239, 84%, 66%); /* Indigo Purple */
    --text-light: hsl(210, 20%, 98%); /* Cyber White */
    --text-muted: hsl(215, 15%, 70%); /* Light Muted Grey */
    --accent-glow: hsla(186, 100%, 50%, 0.15);
    --border-color: hsl(222, 30%, 18%);
    --border-glow: hsla(186, 100%, 50%, 0.3);
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --shadow: 0 15px 35px -10px hsla(222, 100%, 2%, 0.5);
    --font: 'Plus Jakarta Sans', sans-serif;
    --font-mono: 'Fira Code', monospace;
}

/* Reset Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-light);
}

h1 {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    margin-bottom: 24px;
}

h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    margin-bottom: 16px;
    text-align: center;
    background: linear-gradient(135deg, var(--text-light) 30%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

p {
    font-size: 1rem;
    color: var(--text-muted);
}

/* Helpers */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.section-header {
    max-width: 750px;
    margin: 0 auto 60px auto;
    text-align: center;
}

.section-header p {
    font-size: 1.1rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background-color: var(--bg-card);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid var(--border-glow);
    box-shadow: 0 0 15px var(--accent-glow);
}

.highlight {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--accent-glow);
}

.font-small {
    font-size: 0.85rem;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-dark);
    border: none;
    box-shadow: 0 4px 14px hsla(186, 100%, 50%, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px hsla(186, 100%, 50%, 0.5);
    background-color: hsl(186, 100%, 45%);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 36px;
    font-size: 1rem;
}

.btn-full {
    display: flex;
    width: 100%;
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: hsla(222, 47%, 6%, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-light);
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--accent-glow);
}

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

.nav-links a:not(.btn-primary) {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

.nav-links a:not(.btn-primary):hover {
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: clamp(80px, 10vw, 130px) 0;
    position: relative;
}

.hero-desc {
    font-size: 1.15rem;
    margin-bottom: 36px;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-trust {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
}

.hero-trust span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-light);
}

.hero-trust span i {
    color: var(--secondary-color);
}

/* Terminal Card (Hero Visual) */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.terminal-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 480px;
    font-family: var(--font-mono);
    box-shadow: var(--shadow);
    overflow: hidden;
    z-index: 2;
    transition: var(--transition);
}

.terminal-card:hover {
    border-color: var(--border-glow);
    box-shadow: 0 20px 40px -10px hsla(186, 100%, 50%, 0.1);
}

.terminal-header {
    background-color: var(--bg-card-light);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
}

.dots span {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.dots span:nth-child(1) { background-color: #ff5f56; }
.dots span:nth-child(2) { background-color: #ffbd2e; }
.dots span:nth-child(3) { background-color: #27c93f; }

.terminal-title {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.terminal-body {
    padding: 24px;
    font-size: 0.85rem;
}

.terminal-line {
    color: var(--text-light);
    margin-bottom: 10px;
    white-space: pre-wrap;
}

.terminal-line .prompt {
    color: var(--primary-color);
    margin-right: 8px;
    font-weight: bold;
}

.terminal-line.indent-1 {
    padding-left: 20px;
}

.terminal-line.response {
    color: var(--secondary-color);
    margin-top: 15px;
    border-top: 1px dashed var(--border-color);
    padding-top: 15px;
}

.glowing-orb {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, hsla(239, 84%, 66%, 0.2) 0%, transparent 70%);
    filter: blur(40px);
    z-index: 1;
}

/* Features */
.features {
    padding: clamp(60px, 8vw, 110px) 0;
    border-top: 1px solid var(--border-color);
    background-color: hsl(222, 47%, 4%);
}

.feature-box {
    padding: 45px 35px;
    border-radius: var(--radius-md);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-box:hover {
    transform: translateY(-6px);
    border-color: var(--border-glow);
    box-shadow: 0 15px 30px -10px hsla(186, 100%, 50%, 0.1);
}

.feature-icon {
    width: 55px;
    height: 55px;
    border-radius: var(--radius-sm);
    background-color: var(--bg-card-light);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-box:hover .feature-icon {
    border-color: var(--primary-color);
    background-color: var(--primary-color);
    color: var(--bg-dark);
    box-shadow: 0 0 15px var(--accent-glow);
}

.feature-box h3 {
    margin-bottom: 12px;
}

/* Code Playground */
.code-playground {
    padding: clamp(60px, 8vw, 110px) 0;
    border-top: 1px solid var(--border-color);
}

.playground-content h2 {
    text-align: left;
    margin-bottom: 20px;
}

.tab-buttons {
    display: flex;
    gap: 10px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.tab-btn {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover, .tab-btn.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: var(--bg-card-light);
    box-shadow: 0 0 10px var(--accent-glow);
}

.code-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.code-card .card-header {
    background-color: var(--bg-card-light);
    padding: 14px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-name {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--primary-color);
}

.code-block {
    padding: 24px;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-light);
    background-color: var(--bg-card);
    line-height: 1.5;
}

/* Pricing */
.pricing {
    padding: clamp(60px, 8vw, 110px) 0;
    border-top: 1px solid var(--border-color);
    background-color: hsl(222, 47%, 4%);
}

.pricing-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition);
}

.pricing-card.featured {
    border-color: var(--secondary-color);
    box-shadow: 0 15px 40px -10px hsla(239, 84%, 66%, 0.2);
    transform: scale(1.03);
}

.badge-featured {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--secondary-color);
    color: var(--text-light);
    padding: 5px 16px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
}

.pricing-header h3 {
    margin-bottom: 5px;
}

.pricing-header .price {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-light);
    margin: 20px 0;
}

.pricing-header .price span {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.pricing-features {
    margin-bottom: 30px;
    flex: 1;
}

.pricing-features ul {
    list-style: none;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.pricing-features li i.fa-check {
    color: var(--primary-color);
}

.pricing-features li.disabled {
    color: var(--text-muted);
    opacity: 0.4;
}

.pricing-features li i.fa-xmark {
    color: #ff5f56;
}

/* FAQ Accordion */
.faq {
    padding: clamp(60px, 8vw, 110px) 0;
    border-top: 1px solid var(--border-color);
}

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

.faq-item {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.active {
    border-color: var(--border-glow);
    box-shadow: 0 0 15px var(--accent-glow);
}

.faq-question {
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question h4 {
    margin: 0;
    font-size: 1.05rem;
}

.faq-icon {
    font-size: 0.9rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 24px 20px 24px;
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* Contact Form */
.contact {
    padding: clamp(60px, 8vw, 110px) 0;
    border-top: 1px solid var(--border-color);
    background-color: hsl(222, 47%, 4%);
}

.contact-info h2 {
    text-align: left;
    margin-bottom: 20px;
}

.contact-info p {
    margin-bottom: 30px;
}

.info-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-light);
}

.info-item i {
    font-size: 1.2rem;
    color: var(--primary-color);
    width: 24px;
}

.contact-form-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-light);
}

.form-group input, .form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.95rem;
    background-color: var(--bg-card-light);
    color: var(--text-light);
    outline: none;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Footer */
footer {
    background-color: var(--bg-dark);
    color: var(--text-muted);
    padding: 60px 0 30px 0;
    border-top: 1px solid var(--border-color);
}

footer .logo {
    color: var(--text-light);
    margin-bottom: 15px;
}

.footer-top {
    max-width: 500px;
}

.footer-top p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 40px 0 30px 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    font-size: 0.85rem;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    color: var(--text-muted);
    font-size: 1.2rem;
    transition: var(--transition);
}

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

/* Responsive */
@media (max-width: 992px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .hero-content {
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        margin-top: 20px;
    }
    
    .playground-content {
        text-align: center;
    }
    
    .tab-buttons {
        justify-content: center;
    }
    
    .contact-info h2 {
        text-align: center;
    }
    
    .contact-info {
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-card);
        flex-direction: column;
        padding: 30px;
        border-bottom: 1px solid var(--border-color);
        gap: 20px;
        display: none;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links a {
        width: 100%;
        text-align: center;
    }
    
    .nav-links .btn-primary {
        justify-content: center;
    }
}