/* ============================================
   PIKTAF STUDIO - Business & Pixel Art Style
   Color: Asagi (teal) + White + Dark Grey
   ============================================ */

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

:root {
    --color-bg: #f5f9f9;
    --color-bg-alt: #eaf3f3;
    --color-surface: #ffffff;
    --color-primary: #00a3a3;
    --color-primary-light: #66c7c7;
    --color-primary-dark: #008080;
    --color-accent: #3a3a3a;
    --color-text: #3a3a3a;
    --color-text-light: #6a6a6a;
    --color-text-heading: #2a2a2a;
    --color-border: #d4e4e4;
    --font-pixel: 'Silkscreen', 'DotGothic16', monospace;
    --font-body: 'Zen Maru Gothic', sans-serif;
    --radius: 16px;
    --radius-sm: 8px;
    --transition: 0.3s ease;
    --shadow: 0 4px 20px rgba(0, 128, 128, 0.06);
    --shadow-hover: 0 8px 32px rgba(0, 128, 128, 0.1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.9;
    overflow-x: hidden;
}

.pixel-font { font-family: var(--font-pixel); }

a {
    color: var(--color-primary-dark);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--color-primary); }

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Loader --- */
.loader {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}
.loader.hidden { opacity: 0; visibility: hidden; }

.loader-pixel {
    width: 12px; height: 12px;
    background: var(--color-primary);
    animation: loaderBounce 0.6s ease-in-out infinite alternate;
}
.loader-text {
    font-family: var(--font-pixel);
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-top: 16px;
    letter-spacing: 2px;
}

@keyframes loaderBounce {
    0% { transform: translateY(0) scale(1); background: var(--color-primary); }
    100% { transform: translateY(-16px) scale(1.2); background: var(--color-primary-light); }
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(245, 249, 249, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}
.nav-inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.nav-logo {
    font-family: var(--font-pixel);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-heading);
    letter-spacing: 2px;
}
.nav-logo span {
    color: var(--color-primary);
    margin-left: 4px;
}
.nav-links {
    display: flex;
    list-style: none;
    gap: 24px;
    align-items: center;
}
.nav-links a {
    color: var(--color-text-light);
    font-size: 0.8rem;
    font-family: var(--font-pixel);
    letter-spacing: 1px;
    transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-primary); }

.nav-cta {
    background: var(--color-primary) !important;
    color: #fff !important;
    padding: 8px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem !important;
    transition: all var(--transition) !important;
}
.nav-cta:hover {
    background: var(--color-primary-dark) !important;
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span {
    display: block;
    width: 22px; height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: var(--transition);
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background: linear-gradient(180deg, var(--color-bg) 0%, #f0f7f7 50%, var(--color-bg-alt) 100%);
}
.hero-pixels {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
}
.pixel-float {
    position: absolute;
    border-radius: 2px;
    animation: pixelFloat 8s ease-in-out infinite;
}
.pixel-1 { width: 10px; height: 10px; background: var(--color-primary-light); top: 15%; left: 10%; animation-delay: 0s; animation-duration: 7s; }
.pixel-2 { width: 8px; height: 8px; background: var(--color-accent); top: 25%; right: 15%; animation-delay: 1s; animation-duration: 9s; opacity: 0.15; }
.pixel-3 { width: 12px; height: 12px; background: var(--color-primary); top: 60%; left: 8%; animation-delay: 2s; animation-duration: 6s; opacity: 0.25; }
.pixel-4 { width: 6px; height: 6px; background: var(--color-primary-light); top: 70%; right: 20%; animation-delay: 3s; animation-duration: 8s; }
.pixel-5 { width: 10px; height: 10px; background: #88c8d0; top: 40%; left: 25%; animation-delay: 1.5s; animation-duration: 10s; }
.pixel-6 { width: 8px; height: 8px; background: var(--color-primary-light); bottom: 25%; right: 30%; animation-delay: 4s; animation-duration: 7s; }
.pixel-7 { width: 6px; height: 6px; background: var(--color-accent); top: 20%; left: 60%; animation-delay: 2.5s; animation-duration: 9s; opacity: 0.12; }
.pixel-8 { width: 14px; height: 14px; background: var(--color-primary-light); bottom: 30%; left: 40%; animation-delay: 0.5s; animation-duration: 11s; opacity: 0.2; }

@keyframes pixelFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.4; }
    25% { transform: translateY(-20px) rotate(5deg); opacity: 0.7; }
    50% { transform: translateY(-10px) rotate(0deg); opacity: 0.5; }
    75% { transform: translateY(-25px) rotate(-5deg); opacity: 0.8; }
}

.hero-content { position: relative; z-index: 1; padding: 0 24px; }

.hero-label {
    font-size: 0.75rem;
    color: var(--color-primary);
    letter-spacing: 3px;
    margin-bottom: 20px;
}
.hero-title-main {
    display: block;
    font-family: var(--font-pixel);
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    color: var(--color-text-heading);
    letter-spacing: 4px;
    margin-bottom: 20px;
}
.hero-desc {
    font-size: 1.1rem;
    color: var(--color-text-light);
    font-weight: 400;
    line-height: 2;
}
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 36px;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
}
.hero-scroll-dot {
    width: 8px; height: 8px;
    background: var(--color-primary-light);
    border-radius: 2px;
    animation: scrollDot 2s ease-in-out infinite;
}
@keyframes scrollDot {
    0%, 100% { transform: translateY(0); opacity: 0.3; }
    50% { transform: translateY(12px); opacity: 1; }
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 12px 32px;
    font-family: var(--font-pixel);
    font-size: 0.8rem;
    letter-spacing: 1px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
}
.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 4px 16px rgba(0, 163, 163, 0.25);
}
.btn-primary:hover {
    background: var(--color-primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 163, 163, 0.35);
}
.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 1.5px solid var(--color-border);
}
.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
}
.btn-lg {
    padding: 16px 48px;
    font-size: 0.85rem;
}
.btn-full { width: 100%; }

/* --- Sections --- */
.section { padding: 100px 0; }
.section-alt { background: var(--color-bg-alt); }

.section-header {
    text-align: center;
    margin-bottom: 56px;
}
.section-label {
    font-size: 0.7rem;
    color: var(--color-primary);
    letter-spacing: 3px;
    margin-bottom: 8px;
}
.section-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-text-heading);
    margin-bottom: 12px;
}
.section-line {
    width: 40px; height: 3px;
    background: var(--color-primary-light);
    margin: 0 auto;
    border-radius: 2px;
}

/* --- Trust Bar --- */
.trust-bar {
    padding: 40px 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}
.trust-items {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
}
.trust-item { text-align: center; }
.trust-number {
    display: block;
    font-size: 1.1rem;
    color: var(--color-primary);
    letter-spacing: 2px;
    margin-bottom: 2px;
}
.trust-label {
    font-size: 0.75rem;
    color: var(--color-text-light);
}
.trust-divider {
    width: 1px;
    height: 32px;
    background: var(--color-border);
}

/* --- Apps --- */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
}
.app-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
    box-shadow: var(--shadow);
}
.app-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.app-card-image { aspect-ratio: 16 / 10; overflow: hidden; }
.app-card-placeholder {
    width: 100%; height: 100%;
    background: linear-gradient(135deg, #eaf5f5 0%, #f0f5f5 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
}
.pixel-art-icon {
    font-family: var(--font-pixel);
    font-size: 0.5rem;
    color: var(--color-primary-light);
    line-height: 1;
    letter-spacing: 2px;
}
.app-card-placeholder > span {
    font-family: var(--font-pixel);
    font-size: 0.75rem;
    color: var(--color-text-light);
    letter-spacing: 2px;
}
.app-card-body { padding: 24px; }
.app-card-badge {
    display: inline-block;
    font-family: var(--font-pixel);
    font-size: 0.65rem;
    color: var(--color-primary);
    background: rgba(0, 163, 163, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 1px;
    margin-bottom: 8px;
}
.app-card-body h3 {
    font-size: 1.1rem;
    color: var(--color-text-heading);
    margin-bottom: 8px;
}
.app-card-body p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 12px;
}
.app-card-tags { display: flex; gap: 8px; }
.tag {
    font-family: var(--font-pixel);
    font-size: 0.65rem;
    padding: 3px 10px;
    border-radius: 4px;
    background: rgba(0, 163, 163, 0.08);
    color: var(--color-primary);
    letter-spacing: 1px;
}

/* --- Service --- */
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 36px 28px;
    transition: all var(--transition);
    box-shadow: var(--shadow);
}
.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--color-primary-light);
}
.service-icon {
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-bottom: 16px;
    letter-spacing: 2px;
}
.service-card h3 {
    font-size: 1.05rem;
    color: var(--color-text-heading);
    margin-bottom: 12px;
}
.service-card p {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}
.service-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.service-list li {
    font-size: 0.82rem;
    color: var(--color-text);
    padding-left: 16px;
    position: relative;
}
.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px; height: 6px;
    background: var(--color-primary-light);
    border-radius: 1px;
}

/* --- Flow --- */
.flow-steps {
    max-width: 600px;
    margin: 0 auto;
}
.flow-step {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}
.flow-step-num {
    flex-shrink: 0;
    width: 48px; height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    letter-spacing: 1px;
}
.flow-step-body h3 {
    font-size: 1rem;
    color: var(--color-text-heading);
    margin-bottom: 4px;
}
.flow-step-body p {
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.8;
}
.flow-connector {
    width: 2px;
    height: 32px;
    background: var(--color-border);
    margin-left: 23px;
}

/* --- CTA Section --- */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
}
.cta-box {
    text-align: center;
    color: #fff;
}
.cta-box h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}
.cta-box p {
    font-size: 0.95rem;
    opacity: 0.85;
    margin-bottom: 32px;
    line-height: 2;
}
.cta-box .btn-primary {
    background: #fff;
    color: var(--color-primary-dark);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}
.cta-box .btn-primary:hover {
    background: #fff;
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}

/* --- Contact --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 800px;
    margin: 0 auto;
}
.contact-info p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: 24px;
    line-height: 2;
}
.contact-info strong {
    color: var(--color-primary-dark);
}
.contact-links {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.contact-link {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-text);
    font-size: 0.9rem;
    transition: color var(--transition);
}
.contact-link:hover { color: var(--color-primary); }
.contact-link-icon {
    width: 40px; height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--color-primary);
    flex-shrink: 0;
}
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-size: 0.82rem;
    color: var(--color-text-light);
    margin-bottom: 6px;
}
.form-required { color: var(--color-primary); font-size: 0.8rem; }
.form-optional { color: var(--color-text-light); font-size: 0.7rem; }

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: border-color var(--transition);
    outline: none;
    -webkit-appearance: none;
}
.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236a6a6a' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 3px rgba(0, 163, 163, 0.1);
}

/* --- Footer --- */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}
.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer-logo {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-heading);
    letter-spacing: 2px;
}
.footer-copy {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

/* --- Scroll Animation --- */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 64px; left: 0;
        width: 100%;
        flex-direction: column;
        background: rgba(245, 249, 249, 0.97);
        backdrop-filter: blur(12px);
        padding: 24px;
        gap: 18px;
        border-bottom: 1px solid var(--color-border);
    }
    .nav-links.active { display: flex; }
    .nav-cta { text-align: center; }

    .trust-items { flex-wrap: wrap; gap: 20px; }
    .trust-divider { display: none; }

    .service-grid { grid-template-columns: 1fr; gap: 16px; }
    .contact-grid { grid-template-columns: 1fr; gap: 32px; }

    .hero-actions { flex-direction: column; align-items: center; }
    .hero-desc br { display: none; }
    .cta-box p br { display: none; }
    .contact-info br { display: none; }

    .footer-inner {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    .section { padding: 64px 0; }
}