/* ===== Restart Security - Stylesheet ===== */
/* Mobile-first responsive design with accessibility focus */

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

:root {
    /* Color palette - dark security theme */
    --color-bg: #0a0e14;
    --color-bg-alt: #0f141c;
    --color-bg-elevated: #151b25;
    --color-border: #1f2937;
    --color-border-light: #2d3748;
    --color-text: #e6edf3;
    --color-text-muted: #9ca3af;
    --color-text-dim: #6b7280;
    --color-accent: #00d9a3;
    --color-accent-dark: #00b88a;
    --color-accent-glow: rgba(0, 217, 163, 0.15);
    --color-danger: #ef4444;
    --color-success: #10b981;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;

    /* Spacing scale */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --radius: 8px;
    --radius-lg: 12px;

    /* Effects */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

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

a:hover, a:focus-visible {
    color: var(--color-accent-dark);
}

/* Focus indicators for keyboard users */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
    border-radius: 2px;
}

/* Skip link for screen readers */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-accent);
    color: var(--color-bg);
    padding: 0.75rem 1.25rem;
    font-weight: 600;
    z-index: 1000;
    border-radius: 0 0 var(--radius) 0;
}

.skip-link:focus {
    top: 0;
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

/* --- Section base --- */
.section {
    padding: var(--space-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.section-eyebrow {
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.02em;
}

.section-subtitle {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    line-height: 1.6;
}

/* --- Header / Navigation --- */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 14, 20, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-sm);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--color-text);
    font-weight: 700;
    font-size: 1.125rem;
}

.logo:hover {
    color: var(--color-text);
}

.logo-icon {
    width: 36px;
    height: 36px;
}

.logo-text {
    letter-spacing: -0.01em;
}

.logo-accent {
    color: var(--color-accent);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-md);
    align-items: center;
}

.nav-menu a {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition);
}

.nav-menu a:hover,
.nav-menu a:focus-visible {
    color: var(--color-text);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a:focus-visible::after {
    width: 100%;
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius);
    padding: 0.6rem;
    cursor: pointer;
    color: var(--color-text);
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before {
    top: -7px;
}

.hamburger::after {
    top: 7px;
}

.nav-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

/* --- Hero --- */
.hero {
    position: relative;
    padding: var(--space-2xl) 0 var(--space-xl);
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-eyebrow {
    color: var(--color-accent);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--space-sm);
}

.hero-title {
    font-size: clamp(2rem, 5.5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-md);
}

.text-accent {
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero background effect */
.hero-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition);
    text-align: center;
    line-height: 1;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: var(--color-bg);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--color-accent-glow);
}

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

.btn-secondary:hover,
.btn-secondary:focus-visible {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-1px);
}

/* --- Services Grid --- */
.services {
    background: var(--color-bg-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.service-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

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

.service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-glow);
    border-radius: var(--radius);
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.service-icon svg {
    width: 26px;
    height: 26px;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
    letter-spacing: -0.01em;
}

.service-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--space-sm);
}

.service-list {
    list-style: none;
    margin-top: auto;
}

.service-list li {
    padding: 0.4rem 0 0.4rem 1.25rem;
    position: relative;
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 5px;
    background: var(--color-accent);
    border-radius: 50%;
}

/* --- Approach / Steps --- */
.steps {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-md);
    counter-reset: step;
}

.step {
    position: relative;
    padding: var(--space-md);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.step-number {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.5;
    margin-bottom: var(--space-xs);
    line-height: 1;
}

.step h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.step p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* --- Why Us --- */
.why {
    background: var(--color-bg-alt);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-md);
}

.why-card {
    padding: var(--space-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition);
}

.why-card:hover {
    border-color: var(--color-border-light);
}

.why-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-accent);
}

.why-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* --- Contact Form --- */
.contact {
    padding-bottom: var(--space-2xl);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.form-group {
    margin-bottom: var(--space-sm);
}

.form-row .form-group {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 0.9rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius);
    color: var(--color-text);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group input:invalid:not(:placeholder-shown):not(:focus),
.form-group textarea:invalid:not(:placeholder-shown):not(:focus) {
    border-color: var(--color-danger);
}

.form-group textarea {
    resize: vertical;
    min-height: 110px;
    max-height: 400px;
}

.form-group select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%239ca3af' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-error {
    display: block;
    color: var(--color-danger);
    font-size: 0.8rem;
    margin-top: 0.35rem;
    min-height: 1.1em;
}

.form-status {
    margin-top: var(--space-sm);
    padding: 0;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    text-align: center;
    min-height: 1.2em;
}

.form-status.success {
    color: var(--color-success);
}

.form-status.error {
    color: var(--color-danger);
}

/* Honeypot - hidden from users, visible to bots */
.honeypot {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.label-optional {
    color: var(--color-text-dim);
    font-weight: 400;
    font-size: 0.8rem;
    margin-left: 0.25rem;
}

/* --- Success Toast (replaces the form after submit) --- */
.success-toast {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-accent);
    border-radius: var(--radius-lg);
    padding: var(--space-xl) var(--space-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.4s ease-out;
}

.success-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-md);
    background: var(--color-accent-glow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
}

.success-icon svg {
    width: 38px;
    height: 38px;
}

.success-title {
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
    letter-spacing: -0.01em;
}

.success-message {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.success-summary {
    list-style: none;
    text-align: left;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-sm) var(--space-md);
    margin: 0 auto var(--space-md);
    max-width: 480px;
}

.success-summary li {
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.success-summary li:last-child {
    border-bottom: none;
}

.success-summary .summary-label {
    color: var(--color-text-dim);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
}

.success-summary .summary-value {
    color: var(--color-text);
    text-align: right;
    word-break: break-word;
    max-width: 70%;
}

.success-actions {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--space-md);
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* --- Footer --- */
.footer {
    border-top: 1px solid var(--color-border);
    padding: var(--space-lg) 0;
    background: var(--color-bg-alt);
}

.footer-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.footer-logo {
    width: 32px;
    height: 32px;
}

.footer-name {
    font-weight: 700;
    font-size: 1rem;
}

.footer-tagline {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.footer-copy {
    color: var(--color-text-dim);
    font-size: 0.8rem;
}

/* --- Responsive: Tablet --- */
@media (max-width: 768px) {
    .section {
        padding: var(--space-xl) 0;
    }

    .nav-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-bg-alt);
        border-top: 1px solid var(--color-border);
        padding: var(--space-sm);
        gap: 0;
        box-shadow: var(--shadow-md);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: 0.85rem var(--space-sm);
        width: 100%;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .form-row .form-group {
        margin-bottom: var(--space-sm);
    }

    .contact-form {
        padding: var(--space-md);
    }

    .success-toast {
        padding: var(--space-lg) var(--space-md);
    }

    .success-icon {
        width: 60px;
        height: 60px;
    }

    .success-icon svg {
        width: 32px;
        height: 32px;
    }

    .success-actions {
        flex-direction: column;
    }

    .success-actions .btn {
        width: 100%;
    }

    .success-summary .summary-value {
        max-width: 60%;
    }
}

/* --- Responsive: Mobile --- */
@media (max-width: 480px) {
    :root {
        --space-sm: 0.85rem;
        --space-md: 1.25rem;
        --space-lg: 2rem;
        --space-xl: 3rem;
        --space-2xl: 4rem;
    }

    body {
        font-size: 15px;
    }

    .hero {
        padding: var(--space-xl) 0;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .btn {
        padding: 0.9rem 1.5rem;
    }
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* --- Print styles --- */
@media print {
    .header, .nav-toggle, .hero-bg, .footer {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .service-card, .step, .why-card {
        break-inside: avoid;
        border: 1px solid #ccc;
    }
}