/* ========================================
   Email In Your Box — Style System
   ======================================== */

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

:root {
    --navy: #1B2A4A;
    --blue: #2196F3;
    --green: #4CAF50;
    --orange: #F5A623;
    --white: #FFFFFF;
    --light: #F5F7FA;
    --gray: #6B7280;
    --dark-gray: #374151;
    --border: #E5E7EB;
    --shadow: 0 2px 8px rgba(27, 42, 74, 0.08);
    --shadow-lg: 0 8px 32px rgba(27, 42, 74, 0.12);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--dark-gray);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition);
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background: var(--orange);
    color: var(--white);
    border-color: var(--orange);
}

.btn-primary:hover {
    background: #e0941a;
    border-color: #e0941a;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(245, 166, 35, 0.4);
}

.btn-secondary {
    background: var(--navy);
    color: var(--white);
    border-color: var(--navy);
}

.btn-secondary:hover {
    background: #243a63;
    border-color: #243a63;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(27, 42, 74, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--navy);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

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

/* ========================================
   Header
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--white);
    transition: box-shadow var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
}

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

.logo img {
    height: 56px;
    width: auto;
}

.header-contact-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    background: rgba(33, 150, 243, 0.08);
    padding: 8px 18px;
    border-radius: 24px;
    transition: all var(--transition);
    white-space: nowrap;
}

.header-phone i {
    color: var(--blue);
}

.header-phone:hover {
    background: var(--blue);
    color: var(--white);
}

.header-phone:hover i {
    color: var(--white);
}

.header-email {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    background: rgba(76, 175, 80, 0.08);
    padding: 8px 18px;
    border-radius: 24px;
    white-space: nowrap;
}

.header-email i {
    color: var(--green);
}

.email-img {
    height: 18px;
    width: auto;
    vertical-align: middle;
}

.nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--dark-gray);
    position: relative;
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--blue);
    transition: width var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--blue);
}

.nav-social {
    font-size: 1.25rem;
    color: var(--navy);
}

.nav-social:hover {
    color: #E4405F;
}

.nav-social::after {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--navy);
    transition: all var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================
   Hero
   ======================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--navy) 0%, #2a3f6a 50%, #1a3a5c 100%);
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: rgba(33, 150, 243, 0.08);
}

.hero::after {
    content: "";
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(76, 175, 80, 0.06);
}

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

.hero h1 {
    font-size: 3.2rem;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero-sub {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.trust-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--white);
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
}

/* ========================================
   Section Titles
   ======================================== */

.section-title {
    font-size: 2.2rem;
    color: var(--navy);
    text-align: center;
    margin-bottom: 12px;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.section-title-left {
    text-align: left;
}

.section-sub {
    text-align: center;
    color: var(--gray);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 48px;
}

/* ========================================
   Services
   ======================================== */

.services {
    padding: 100px 0;
    background: var(--light);
}

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

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all var(--transition);
    border: 1px solid var(--border);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--blue), #1976D2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.4rem;
    color: var(--white);
}

.service-card h3 {
    font-size: 1.15rem;
    color: var(--navy);
    margin-bottom: 10px;
    font-weight: 700;
}

.service-card p {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========================================
   DNS Explainer
   ======================================== */

.dns-explainer {
    padding: 100px 0;
    background: var(--white);
}

.dns-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 60px;
    padding: 40px 20px;
    background: var(--light);
    border-radius: var(--radius-lg);
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.flow-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--navy);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.flow-check .flow-icon {
    background: var(--green);
}

.flow-inbox .flow-icon {
    background: var(--blue);
}

.flow-step span {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--navy);
    white-space: nowrap;
}

.flow-arrow {
    color: var(--gray);
    font-size: 1rem;
}

.dns-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

.dns-col {
    text-align: center;
    padding: 32px 24px;
}

.dns-col-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--light);
    color: var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 16px;
}

.dns-col h3 {
    font-size: 1.3rem;
    color: var(--navy);
    margin-bottom: 10px;
    font-weight: 800;
}

.dns-col p {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========================================
   About
   ======================================== */

.about {
    padding: 100px 0;
    background: var(--light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    color: var(--gray);
    margin-bottom: 16px;
    font-size: 1.05rem;
    line-height: 1.8;
}

.terminal {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: #1e1e2e;
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: #2a2a3e;
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }

.terminal-title {
    margin-left: 8px;
    font-size: 0.8rem;
    color: #888;
    font-family: monospace;
}

.terminal-body {
    padding: 20px;
    overflow-x: auto;
}

.terminal-body code {
    font-family: "SF Mono", "Fira Code", "Cascadia Code", monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    color: #cdd6f4;
    white-space: pre;
}

.t-comment { color: #6c7086; }
.t-type { color: #89b4fa; font-weight: bold; }
.t-success { color: #a6e3a1; }

/* ========================================
   How It Works
   ======================================== */

.how-it-works {
    padding: 100px 0;
    background: var(--white);
}

.timeline {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 28px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-step {
    display: flex;
    gap: 24px;
    margin-bottom: 40px;
    position: relative;
}

.timeline-step:last-child {
    margin-bottom: 0;
}

.timeline-number {
    width: 56px;
    height: 56px;
    min-width: 56px;
    border-radius: 50%;
    background: var(--blue);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 800;
    z-index: 1;
}

.timeline-content h3 {
    font-size: 1.2rem;
    color: var(--navy);
    margin-bottom: 6px;
    font-weight: 700;
    padding-top: 4px;
}

.timeline-content p {
    color: var(--gray);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ========================================
   Pricing
   ======================================== */

.pricing {
    padding: 100px 0;
    background: var(--light);
}

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

.pricing-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    border: 1px solid var(--border);
    text-align: center;
    transition: all var(--transition);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-featured {
    border-color: var(--blue);
    border-width: 2px;
    transform: scale(1.04);
}

.pricing-featured:hover {
    transform: scale(1.04) translateY(-4px);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--blue);
    color: var(--white);
    padding: 4px 20px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-header h3 {
    font-size: 1.3rem;
    color: var(--navy);
    margin-bottom: 12px;
    font-weight: 700;
}

.pricing-price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--navy);
    line-height: 1;
}

.pricing-term {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 28px;
}

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

.pricing-features li {
    padding: 8px 0;
    font-size: 0.95rem;
    color: var(--dark-gray);
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.pricing-features li i {
    color: var(--green);
    margin-top: 4px;
    font-size: 0.85rem;
}

/* ========================================
   Contact
   ======================================== */

.contact {
    padding: 100px 0;
    background: var(--white);
}

.contact-info-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.contact-info-item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--navy);
    background: rgba(33, 150, 243, 0.08);
    padding: 14px 28px;
    border-radius: 32px;
    transition: all var(--transition);
}

.contact-info-item i {
    color: var(--blue);
    font-size: 1.1rem;
}

a.contact-info-item:hover {
    background: var(--blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(33, 150, 243, 0.3);
}

a.contact-info-item:hover i {
    color: var(--white);
}

.email-img-lg {
    height: 24px;
    width: auto;
    vertical-align: middle;
}

.contact-form {
    max-width: 640px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
    background: var(--white);
    color: var(--dark-gray);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--navy);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-logo {
    height: 44px;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-links h4,
.footer-social h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 16px;
    font-weight: 700;
}

.footer-links a {
    display: block;
    padding: 4px 0;
    font-size: 0.9rem;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    transition: color var(--transition);
}

.footer-social a:hover {
    color: var(--white);
}

.footer-email-row {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.email-img-footer {
    height: 16px;
    width: auto;
    vertical-align: middle;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
}

/* ========================================
   Reveal Animation
   ======================================== */

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1024px) {
    .header-email {
        display: none;
    }

    .services-grid,
    .dns-columns,
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-featured {
        transform: scale(1);
    }

    .pricing-featured:hover {
        transform: translateY(-4px);
    }

    .hero h1 {
        font-size: 2.6rem;
    }

    .about-grid {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .header-phone span {
        display: none;
    }

    .header-phone {
        font-size: 0.9rem;
        padding: 8px 14px;
    }

    .hamburger {
        display: flex;
    }

    .nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--border);
    }

    .nav.open {
        display: flex;
    }

    .nav-link::after {
        display: none;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-sub {
        font-size: 1.1rem;
    }

    .services-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .dns-columns {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .trust-stats {
        gap: 24px;
    }

    .stat-divider {
        display: none;
    }

    .dns-flow {
        gap: 8px;
        padding: 24px 12px;
    }

    .flow-arrow {
        font-size: 0.8rem;
    }

    .flow-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .flow-step span {
        font-size: 0.7rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0 60px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-ctas {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .services,
    .dns-explainer,
    .about,
    .how-it-works,
    .pricing,
    .contact {
        padding: 60px 0;
    }

    .dns-flow {
        flex-direction: column;
        gap: 4px;
    }

    .flow-arrow {
        transform: rotate(90deg);
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-number {
        width: 40px;
        height: 40px;
        min-width: 40px;
        font-size: 1rem;
    }
}