/* Trustenergy.nl – Vue 3 样式 */
:root {
    --color-primary: #0f766e;
    --color-primary-light: #14b8a6;
    --color-teal: #0d9488;
    --color-text: #134e4a;
    --color-text-muted: #5eead4;
    --color-bg: #f0fdfa;
    --color-white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --radius: 12px;
    --radius-lg: 16px;
    --font: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font-family: var(--font); color: var(--color-text); line-height: 1.6; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: 640px; }

/* Navbar */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    transition: box-shadow 0.2s;
}
.navbar.scrolled { box-shadow: var(--shadow); }
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo { font-weight: 700; font-size: 1.25rem; color: var(--color-primary); }
.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-links a { font-weight: 500; color: var(--color-text); transition: color 0.2s; }
.nav-links a:hover { color: var(--color-primary); }

.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px; height: 44px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: var(--radius);
}
.mobile-toggle span {
    display: block;
    width: 22px; height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: transform 0.3s, opacity 0.3s;
}
.mobile-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.mobile-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0;
}
.mobile-menu a { display: block; padding: 0.75rem 1rem; font-weight: 500; color: var(--color-text); border-radius: var(--radius); }
.mobile-menu a:hover { background: var(--color-bg); color: var(--color-primary); }

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-toggle { display: flex; }
    .nav-container { position: relative; }
}

/* Vue transition */
.slide-enter-active, .slide-leave-active { transition: opacity 0.2s, transform 0.2s; }
.slide-enter-from, .slide-leave-to { opacity: 0; transform: translateY(-10px); }

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem 0 4rem;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0f766e 0%, #0d9488 50%, #14b8a6 100%);
    z-index: 0;
}
.grid-pattern {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255,255,255,0.08) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255,255,255,0.08) 1px, transparent 1px);
    background-size: 40px 40px;
}
.float-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.35;
    animation: float 15s ease-in-out infinite;
}
.orb-1 { width: 300px; height: 300px; background: #5eead4; top: 10%; left: 10%; animation-delay: 0s; }
.orb-2 { width: 200px; height: 200px; background: #0f766e; bottom: 20%; right: 15%; animation-delay: -5s; }
@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(20px, -20px); }
    66% { transform: translate(-15px, 15px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}
.hero-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    color: #fff;
    margin: 0 0 1rem;
}
.hero-subtitle {
    font-size: 1.125rem;
    color: rgba(255,255,255,0.92);
    margin: 0 0 1.5rem;
    line-height: 1.7;
}
.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    background: #fff;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin: 0 0.5rem 0.5rem 0;
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-cta:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }
.btn-cta.btn-secondary {
    background: rgba(255,255,255,0.2);
    color: #fff;
    border: 2px solid rgba(255,255,255,0.6);
}
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}
.stat { text-align: center; color: #fff; }
.stat-num { display: block; font-size: 1.75rem; font-weight: 800; }
.stat-label { font-size: 0.875rem; opacity: 0.9; }
.hero-wave {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    z-index: 1;
    line-height: 0;
}
.hero-wave svg { width: 100%; height: 80px; }

/* Over Ons 独立页面 */
.over-ons-page {
    min-height: 100vh;
    padding: 5rem 0 4rem;
    background: var(--color-bg);
}
.over-ons-content {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1.5rem;
}
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 2rem;
    transition: color 0.2s;
}
.back-link:hover { color: var(--color-teal); }
.over-ons-title {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 800;
    color: var(--color-text);
    margin: 0 0 0.5rem;
}
.over-ons-tagline {
    font-size: 1.125rem;
    color: var(--color-primary);
    font-weight: 600;
    margin: 0 0 2rem;
}
.over-ons-section h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 1rem;
}
.over-ons-section p {
    margin: 0 0 1rem;
    color: var(--color-text);
    line-height: 1.75;
}
.over-ons-section p:last-child { margin-bottom: 0; }

/* Diensten 页面列表 */
.diensten-section { margin-bottom: 2rem; }
.diensten-section:last-of-type { margin-bottom: 0; }
.diensten-list {
    margin: 0.75rem 0 0;
    padding-left: 1.5rem;
    color: var(--color-text);
    line-height: 1.7;
}
.diensten-list li { margin-bottom: 0.35rem; }

/* Contact 页面 */
.contact-content { max-width: 560px; }
.contact-form-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 1rem;
}
.contact-form {
    background: var(--color-white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}
.contact-form .form-group { margin-bottom: 1rem; }
.contact-form .form-group label { display: block; font-weight: 600; margin-bottom: 0.35rem; font-size: 0.9375rem; }
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
}
.contact-form textarea { resize: vertical; min-height: 100px; }
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(15,118,110,0.2);
}
.contact-form input.error,
.contact-form textarea.error { border-color: #dc2626; }
.field-error {
    display: block;
    font-size: 0.8125rem;
    color: #dc2626;
    margin-top: 0.25rem;
}
.contact-info {
    padding: 1rem 0;
    border-top: 1px solid #e5e7eb;
}
.contact-info p {
    margin: 0 0 0.75rem;
    font-size: 1rem;
}
.contact-info p:last-child { margin-bottom: 0; }
.contact-info a { color: var(--color-primary); font-weight: 500; }
.contact-info a:hover { text-decoration: underline; }
.address-line { display: block; margin-top: 0.15rem; }

/* Sections */
.section { padding: 4rem 0; }
.section-light { background: var(--color-bg); }
.section-teal { background: linear-gradient(135deg, #0f766e 0%, #0d9488 100%); color: #fff; }
.section-title {
    text-align: center;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    margin: 0 0 0.5rem;
    color: var(--color-text);
}
.section-title.light { color: #fff; }
.section-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    margin: 0 0 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.section-subtitle.light { color: rgba(255,255,255,0.9); }

/* Diensten grid */
.diensten-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}
.dienst-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}
.dienst-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.dienst-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    background: rgba(15,118,110,0.12);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}
.dienst-card h3 { font-size: 1.125rem; margin: 0 0 0.5rem; color: var(--color-text); }
.dienst-card p { margin: 0 0 0.75rem; font-size: 0.9375rem; color: var(--color-text-muted); }
.dienst-tag {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* Testimonials */
.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.testimonial-card {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid rgba(255,255,255,0.2);
}
.testimonial-text { margin: 0 0 0.75rem; font-style: italic; line-height: 1.6; }
.testimonial-name { font-weight: 600; font-size: 0.9375rem; }
.features-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}
.feature-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255,255,255,0.2);
    border-radius: 9999px;
    font-size: 0.9375rem;
    font-weight: 500;
}

/* Profiler form */
.profiler-features {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
}
.profiler-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}
.profiler-features i { color: var(--color-primary); }
.profiler-form {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}
.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.35rem;
    font-size: 0.9375rem;
}
.form-group input {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid #e5e7eb;
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
}
.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(15,118,110,0.2);
}
.form-message { margin-top: 1rem; padding: 0.5rem; border-radius: var(--radius); font-size: 0.9375rem; }
.form-message.success { background: #d1fae5; color: #065f46; }
.form-message.error { background: #fee2e2; color: #991b1b; }

/* Footer */
.footer {
    background: #134e4a;
    color: #99f6e4;
    padding: 3rem 0 1.5rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}
.footer-col h4 {
    color: #fff;
    font-size: 1rem;
    margin: 0 0 0.75rem;
}
.footer-col p, .footer-col ul {
    margin: 0;
    font-size: 0.9375rem;
    line-height: 1.6;
}
.footer-col ul { list-style: none; padding: 0; }
.footer-col a { color: #99f6e4; transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.15);
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.9;
}