/* ============================================================
   PrintSasa — Paper & Ink Utility Design System
   Company: Gahitwen.com
   Zero-framework, zero-bloat stylesheet (~4KB)
   ============================================================ */

:root {
    --surface: #fff8f5;
    --surface-container-low: #fcf2eb;
    --surface-container-lowest: #ffffff;
    --on-surface: #1f1b17;
    --on-surface-variant: #56423b;
    --outline: #8a7269;
    --outline-variant: #ddc0b6;
    --primary: #9d3e12;
    --primary-hover: #7e3110;
    --secondary: #296959;
    --secondary-hover: #1e5243;
    --tertiary: #62567c;
    --error: #ba1a1a;
    --error-container: #ffdad6;
    --on-error-container: #410002;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 999px;

    --font:
        "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI",
        sans-serif;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background: var(--surface);
    color: var(--on-surface);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1,
h2,
h3,
h4 {
    font-weight: 700;
    line-height: 1.2;
}
h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    letter-spacing: -0.02em;
}
h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
}
h3 {
    font-size: 1.25rem;
}
p {
    color: var(--on-surface-variant);
}

.text-sm {
    font-size: 0.875rem;
}
.text-xs {
    font-size: 0.75rem;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
.nav {
    background: var(--surface-container-lowest);
    border-bottom: 1px solid var(--outline-variant);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--on-surface);
    font-weight: 700;
    font-size: 1.25rem;
}

.nav-logo img {
    height: 32px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--on-surface-variant);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color 0.15s;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-sm);
    padding: 0.5rem;
    cursor: pointer;
    color: var(--on-surface);
}

.nav-toggle svg {
    display: block;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--surface-container-lowest);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        border-bottom: 1px solid var(--outline-variant);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    }
    .nav-links.open {
        display: flex;
    }
    .nav-toggle {
        display: block;
    }
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section-alt {
    background: var(--surface-container-low);
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 3rem;
}

.section-header h2 {
    margin-bottom: 0.75rem;
}
.section-header p {
    font-size: 1.1rem;
}

/* Hero */
.hero {
    padding: 5rem 0 3rem;
    text-align: center;
}

.hero h1 {
    max-width: 720px;
    margin: 0 auto 1rem;
    color: var(--on-surface);
}

.hero p {
    max-width: 560px;
    margin: 0 auto 2rem;
    font-size: 1.15rem;
}

.hero-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font);
    font-weight: 700;
    font-size: 0.9375rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition:
        background 0.15s,
        opacity 0.15s;
}

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

.btn-secondary {
    background: var(--secondary);
    color: #ffffff;
}
.btn-secondary:hover {
    background: var(--secondary-hover);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}
.btn-outline:hover {
    background: var(--primary);
    color: #ffffff;
}

/* Cards */
.card {
    background: var(--surface-container-lowest);
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--surface-container-low);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--primary);
    font-size: 1.5rem;
}

.card h3 {
    margin-bottom: 0.5rem;
}
.card p {
    font-size: 0.9375rem;
}

/* Grid */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

/* App showcase */
.app-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.app-showcase-img {
    background: var(--surface-container-low);
    border-radius: var(--radius-lg);
    border: 1px solid var(--outline-variant);
    aspect-ratio: 16/10;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--outline);
    font-size: 0.875rem;
}

.app-showcase-tag {
    display: inline-block;
    background: var(--surface-container-low);
    color: var(--primary);
    font-size: 0.8125rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    margin-bottom: 0.75rem;
}

.app-showcase h2 {
    margin-bottom: 0.75rem;
}
.app-showcase p {
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    color: var(--on-surface-variant);
    font-size: 0.9375rem;
}

.feature-list li::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    margin-top: 0.55rem;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .app-showcase {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .app-showcase.reverse {
        display: flex;
        flex-direction: column-reverse;
    }
}

/* Contact form */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.375rem;
    color: var(--on-surface);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--outline-variant);
    border-radius: var(--radius-md);
    background: var(--surface-container-low);
    font-family: var(--font);
    font-size: 0.9375rem;
    color: var(--on-surface);
    transition: border-color 0.15s;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--surface-container-lowest);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-hint {
    font-size: 0.8125rem;
    color: var(--on-surface-variant);
    margin-top: 0.375rem;
}

.form-success {
    display: none;
    padding: 1rem;
    background: var(--secondary);
    color: #ffffff;
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 600;
}

.form-success.show {
    display: block;
}

.contact-form-wrapper {
    max-width: 560px;
    margin: 0 auto;
}

.contact-form-wrapper .card {
    padding: 2rem;
}

/* Footer */
.footer {
    background: var(--on-surface);
    color: rgba(255, 255, 255, 0.7);
    padding: 3rem 0 1.5rem;
    margin-top: auto;
}

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

.footer-brand p {
    max-width: 320px;
    margin-top: 0.5rem;
    color: rgba(255, 255, 255, 0.55);
}

.footer h4 {
    color: #ffffff;
    margin-bottom: 1rem;
    font-size: 0.9375rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer a {
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    font-size: 0.875rem;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.15s;
}

.footer a:hover {
    color: #ffffff;
}

.footer-divider {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* Policy / Terms pages */
.policy-content {
    max-width: 720px;
    margin: 0 auto;
}

.policy-content h2 {
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
}

.policy-content h3 {
    margin-top: 2rem;
    margin-bottom: 0.5rem;
}

.policy-content p {
    margin-bottom: 1rem;
}

.policy-content ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.policy-content li {
    color: var(--on-surface-variant);
    margin-bottom: 0.5rem;
}

.policy-content .last-updated {
    color: var(--on-surface-variant);
    font-size: 0.875rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--outline-variant);
}

/* Utility */
.mt-2 {
    margin-top: 2rem;
}
.text-center {
    text-align: center;
}