/* ═══════════════════════════════════════════════
   MasInfo Landing — Ultra-minimalist
   ═══════════════════════════════════════════════ */

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

:root {
    --text: #1a1a1a;
    --text-muted: #6b7280;
    --text-light: #9ca3af;
    --bg: #ffffff;
    --card-bg: #ffffff;
    --border: #e5e7eb;
    --border-hover: #d1d5db;
    --accent: #2563eb;
    --accent-light: #eff6ff;
    --hover-bg: #f3f4f6;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-focus: 0 0 0 3px rgba(37, 99, 235, 0.1);
    --radius: 12px;
    --transition: 200ms ease;
}

/* ── Dark theme ── */
[data-theme="dark"] {
    --text: #e5e7eb;
    --text-muted: #9ca3af;
    --text-light: #6b7280;
    --bg: #0b1121;
    --card-bg: #111827;
    --border: #1e293b;
    --border-hover: #334155;
    --accent: #60a5fa;
    --accent-light: #1e3a5f;
    --hover-bg: #1e293b;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-focus: 0 0 0 3px rgba(96, 165, 250, 0.15);
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    transition: background var(--transition), color var(--transition);
}

/* ── Layout ── */
.landing {
    margin: 0 auto;
    padding: 32px 32px 48px;
}

/* ── Navbar ── */
.navbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 52px;
    padding: 0 32px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: background var(--transition), border-color var(--transition);
}

.navbar-brand {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    flex-shrink: 0;
    cursor: pointer;
    user-select: none;
    padding: 4px 8px;
    margin: -4px -8px;
    border-radius: 6px;
    transition: background var(--transition);
}

.navbar-brand:hover {
    background: var(--hover-bg);
}

.brand-chevron {
    transition: transform var(--transition);
}

.navbar-brand.open .brand-chevron {
    transform: rotate(180deg);
}

.brand-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    display: inline-block;
}

/* ── Brand dropdown ── */
.navbar-brand-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 180px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    padding: 4px;
    display: none;
    z-index: 20;
    animation: slideDown 0.15s ease;
}

.navbar-brand-dropdown.open {
    display: block;
}

.dropdown-item {
    display: block;
    padding: 8px 14px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 6px;
    transition: background var(--transition), color var(--transition);
}

.dropdown-item:hover {
    background: var(--hover-bg);
    color: var(--text);
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.navbar-link {
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    padding: 6px 14px;
    border-radius: 100px;
    transition: color var(--transition), background var(--transition);
}

.navbar-link:hover {
    color: var(--text);
    background: var(--hover-bg);
}

.navbar-link.active {
    color: var(--accent);
    background: var(--accent-light);
}

/* ── Hamburger (mobile) ── */
.navbar-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
}

.navbar-hamburger:hover {
    border-color: var(--border-hover);
    background: var(--hover-bg);
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: var(--text-muted);
    transition: transform 0.25s ease, opacity 0.25s ease;
}

/* Hamburger → X animation */
.navbar.open .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar.open .hamburger-line:nth-child(2) {
    opacity: 0;
}

.navbar.open .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── Theme toggle ── */
.theme-toggle {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: border-color var(--transition), background var(--transition), color var(--transition);
    margin-left: 8px;
}

.theme-toggle:hover {
    border-color: var(--border-hover);
    color: var(--text);
}

.theme-icon {
    position: absolute;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Light mode: show moon (switch to dark), hide sun */
[data-theme="light"] .theme-icon-moon {
    opacity: 1;
    transform: rotate(0deg);
}
[data-theme="light"] .theme-icon-sun {
    opacity: 0;
    transform: rotate(90deg);
}

/* Dark mode: show sun (switch to light), hide moon */
[data-theme="dark"] .theme-icon-moon {
    opacity: 0;
    transform: rotate(-90deg);
}
[data-theme="dark"] .theme-icon-sun {
    opacity: 1;
    transform: rotate(0deg);
}
}

/* ── Search ── */
.search-wrapper {
    margin-bottom: 48px;
}

.search-container {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 0 16px;
    height: 56px;
    max-width: 640px;
    margin: 0 auto;
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.search-container:focus-within {
    border-color: var(--accent);
    box-shadow: var(--shadow-focus);
}

.search-icon {
    flex-shrink: 0;
    color: var(--text-light);
    margin-right: 12px;
    transition: color var(--transition);
}

.search-container:focus-within .search-icon {
    color: var(--accent);
}

.search-input {
    flex: 1;
    border: none;
    outline: none;
    font-family: inherit;
    font-size: 1.05rem;
    font-weight: 400;
    color: var(--text);
    background: transparent;
    height: 100%;
}

.search-input::placeholder {
    color: var(--text-light);
}

.search-clear {
    flex-shrink: 0;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-light);
    padding: 6px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition), background var(--transition);
}

.search-clear:hover {
    color: var(--text-muted);
    background: var(--hover-bg);
}

.search-clear[hidden] {
    display: none;
}

.search-hint {
    text-align: center;
    margin-top: 14px;
    margin-bottom: 24px;
    font-size: 0.85rem;
    color: var(--text-light);
    transition: opacity var(--transition);
}

.search-hint em {
    font-style: normal;
    color: var(--text-muted);
}

.search-hint[hidden] {
    display: none;
}

/* ── Results info ── */
.results-info {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 24px;
    min-height: 0;
}

.results-info:empty {
    display: none;
}

/* ── Cards Grid ── */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

/* ── Card ── */
.card {
    display: flex;
    flex-direction: column;
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition), background var(--transition);
    cursor: pointer;
}

.card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card[hidden] {
    display: none;
}

.card-icon {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.6rem;
    line-height: 1;
    margin-bottom: 14px;
}

.card-price {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    background: var(--accent-light);
    padding: 3px 10px;
    border-radius: 100px;
    white-space: nowrap;
    flex-shrink: 0;
    line-height: 1.3;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.4;
}

.card-desc {
    flex: 1;
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.card-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent);
    background: var(--accent-light);
    padding: 2px 10px;
    border-radius: 100px;
    letter-spacing: 0.01em;
}

/* ── Card footer (tag + action) ── */
.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-top: auto;
}

.card-action {
    flex-shrink: 0;
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent);
    background: transparent;
    border: 1px solid var(--accent);
    border-radius: 100px;
    padding: 3px 14px;
    cursor: pointer;
    text-decoration: none !important;
    transition: background var(--transition), color var(--transition), opacity var(--transition);
}

.card-action:hover {
    background: var(--accent);
    color: #ffffff;
}

/* ── Modal ── */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    padding: 24px;
    animation: fadeIn 0.2s ease;
    overflow-y: auto;
}

.modal-overlay[hidden] {
    display: none;
}

.modal {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 32px 32px;
    max-width: 520px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    animation: slideUp 0.25s ease;
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-light);
    padding: 6px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition), background var(--transition);
}

.modal-close:hover {
    color: var(--text);
    background: var(--hover-bg);
}

.modal-icon {
    display: block;
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: 16px;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
    line-height: 1.3;
}

.modal-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ── Modal use cases ── */
.modal-usecases {
    margin-top: 20px;
    padding: 16px;
    background: var(--hover-bg);
    border-radius: 8px;
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.modal-usecases:empty {
    display: none;
}

.modal-usecases strong {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.modal-usecases p {
    margin: 0;
}

/* ── Modal actions ── */
.modal-actions {
    display: flex;
    gap: 10px;
    margin-top: 24px;
}

.modal-btn {
    flex: 1;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    padding: 10px 12px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: opacity var(--transition), filter var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.modal-btn-demo,
.modal-btn-quote {
    background: var(--border);
    color: var(--text-light);
    cursor: not-allowed;
    opacity: 0.6;
}

.modal-btn-whatsapp {
    background: #25D366;
    color: #ffffff;
}

.modal-btn-whatsapp:hover {
    filter: brightness(1.08);
}

/* ── Animations ── */
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(16px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Service Detail Page ── */
.service-detail {
    max-width: 960px;
    margin: 0 auto;
    padding-top: 48px;
}

.service-detail-icon {
    display: block;
    font-size: 3rem;
    line-height: 1;
    margin-bottom: 16px;
}

.service-detail-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
    line-height: 1.3;
}

.service-detail-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent);
    background: var(--accent-light);
    padding: 2px 10px;
    border-radius: 100px;
    margin-bottom: 20px;
}

.service-detail-desc {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
}

.service-detail-usecases {
    padding: 20px;
    background: var(--hover-bg);
    border-radius: var(--radius);
    margin-bottom: 28px;
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.service-detail-usecases strong {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 10px;
}

.service-detail-usecases p {
    margin: 0;
}

.service-detail-actions {
    display: flex;
    gap: 10px;
}

.service-detail-btn {
    flex: 1;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 12px 16px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: opacity var(--transition), filter var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.service-detail-btn-demo,
.service-detail-btn-quote {
    background: var(--border);
    color: var(--text-light);
    cursor: not-allowed;
    opacity: 0.6;
}

.service-detail-btn-demo-active {
    background: #ea580c;
    color: #ffffff;
    cursor: pointer;
    opacity: 1;
}

.service-detail-btn-demo-active:hover {
    filter: brightness(1.12);
}

.service-detail-btn-whatsapp {
    background: #25D366;
    color: #ffffff;
}

.service-detail-btn-whatsapp:hover {
    filter: brightness(1.08);
}

@media (max-width: 640px) {
    .service-detail {
        padding-top: 32px;
    }

    .service-detail-title {
        font-size: 1.25rem;
    }

    .service-detail-actions {
        flex-direction: column;
    }
}

/* ── No Results ── */
.no-results {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}

.no-results[hidden] {
    display: none;
}

.no-results-text {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.no-results-hint {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ── Footer ── */
.landing-footer {
    text-align: center;
    margin-top: 80px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-light);
}

.footer-sep {
    margin: 0 8px;
}

.footer-credit {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-credit:hover {
    color: var(--accent);
}

.footer-h1 {
    display: inline;
    margin: 0;
    font-size: inherit;
    font-weight: inherit;
    color: inherit;
}

/* ── Responsive ── */
@media (max-width: 640px) {
    .navbar {
        padding: 0 16px;
        height: 48px;
    }

    /* Show hamburger, hide horizontal links */
    .navbar-hamburger {
        display: flex;
    }

    .navbar-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--card-bg);
        border-bottom: 1px solid var(--border);
        padding: 4px 16px 16px;
        box-shadow: var(--shadow-md);
        animation: slideDown 0.2s ease;
        z-index: 9;
    }

    .navbar.open .navbar-links {
        display: flex;
    }

    /* Detail page: always show the back link */
    .navbar-detail .navbar-links {
        display: flex;
        position: static;
        background: transparent;
        border: none;
        padding: 0;
        box-shadow: none;
        animation: none;
        width: auto;
    }

    .navbar-link {
        font-size: 0.85rem;
        padding: 10px 14px;
        border-radius: 8px;
        width: 100%;
        text-align: left;
    }

    .landing {
        padding: 24px 16px 32px;
    }

    .search-container {
        height: 48px;
        padding: 0 12px;
    }

    .search-input {
        font-size: 1rem;
    }

    .cards-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .card {
        padding: 20px;
    }

    .modal-overlay {
        padding: 16px;
        align-items: flex-start;
    }

    .modal {
        padding: 32px 20px 24px;
        border-radius: var(--radius) var(--radius) 0 0;
        max-width: none;
    }

    .modal-icon {
        font-size: 2rem;
    }

    .modal-title {
        font-size: 1.1rem;
    }

    .modal-desc {
        font-size: 0.9rem;
    }

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

    .landing-footer {
        margin-top: 48px;
    }
}

/* ── How it works link ── */
.how-link {
    display: block;
    text-align: center;
    font-size: 0.85rem;
    color: var(--accent);
    text-decoration: none;
    margin-bottom: 12px;
    transition: opacity var(--transition);
}
.how-link:hover {
    opacity: 0.7;
    text-decoration: underline;
}