/* ============================================================
   Dependable Water Treatment - Main Stylesheet
   ============================================================ */

:root {
    --blue-dark:    #1a3a5c;
    --blue-mid:     #2e6da4;
    --blue-main:    #5a7fbf;
    --blue-light:   #b3cbf3;
    --blue-pale:    #e8f0fb;
    --white:        #ffffff;
    --gray-dark:    #222222;
    --gray-mid:     #555555;
    --gray-light:   #f4f7fc;
    --accent:       #00b4d8;
    --shadow:       0 4px 24px rgba(26,58,92,0.10);
    --radius:       14px;
    --transition:   0.3s ease;
}

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

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--gray-dark);
    background: var(--white);
    line-height: 1.7;
}

a { color: var(--blue-mid); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--blue-dark); }
img { max-width: 100%; height: auto; display: block; }

/* ---- TOP BAR ---- */
.top-bar {
    background: var(--blue-dark);
    color: var(--white);
    font-size: 0.82rem;
    padding: 7px 0;
}
.top-bar-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px;
}
.top-bar a { color: var(--blue-light); }
.top-bar a:hover { color: var(--white); }
.top-bar i { margin-right: 5px; }

/* ---- LOGO BAR ---- */
.logo-bar {
    background: var(--blue-pale);
    text-align: center;
    padding: 18px 24px;
    border-bottom: 2px solid var(--blue-light);
}
.logo-bar img { max-width: 320px; margin: 0 auto; }

/* ---- NAVBAR ---- */
.navbar {
    background: var(--blue-main);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 12px rgba(26,58,92,0.18);
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 58px;
    position: relative;
}
.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
    justify-content: center;
}
.nav-links a {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: 8px;
    transition: background var(--transition), color var(--transition);
    display: block;
}
.nav-links a:hover { background: rgba(255,255,255,0.18); color: var(--white); }
.nav-links a.nav-cta {
    background: var(--accent);
    color: var(--white);
    border-radius: 25px;
    padding: 10px 22px;
    font-weight: 700;
    margin-left: 8px;
}
.nav-links a.nav-cta:hover { background: #0096b5; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    position: absolute;
    right: 24px;
}
.nav-toggle span {
    display: block;
    width: 26px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: all var(--transition);
}

/* ---- HERO ---- */
.hero {
    position: relative;
    min-height: 560px;
    background: url('/images/dependable_truck.jpg') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(33, 33, 33, 0.641) 0%, rgba(33, 33, 33, 0.641) 100%);
}
.hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    max-width: 780px;
    padding: 40px 24px;
}
.hero-content h1 {
    font-size: clamp(2rem, 5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 18px;
    text-shadow: 0 2px 12px rgba(0,0,0,0.3);
}
.hero-content p {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    margin-bottom: 32px;
    opacity: 0.92;
}
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    text-align: center;
}
.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover { background: #0096b5; color: var(--white); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,180,216,0.4); }
.btn-outline { background: transparent; color: var(--white); border: 2px solid var(--white); }
.btn-outline:hover { background: var(--white); color: var(--blue-dark); transform: translateY(-2px); }
.btn-blue { background: var(--blue-main); color: var(--white); }
.btn-blue:hover { background: var(--blue-dark); color: var(--white); transform: translateY(-2px); }

/* ---- TRUST STRIP ---- */
.trust-strip {
    background: var(--blue-dark);
    color: var(--white);
    padding: 22px 24px;
}
.trust-strip-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 16px;
}
.trust-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 600;
}
.trust-item i { color: var(--accent); font-size: 1.3rem; }

/* ---- SECTIONS ---- */
.section { padding: 70px 24px; }
.section-white { background: var(--white); }
.section-pale { background: var(--blue-pale); }
.section-dark { background: var(--blue-dark); color: var(--white); }
.section-mid { background: var(--blue-mid); color: var(--white); }

.container { max-width: 1200px; margin: 0 auto; }
.section-title {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--blue-dark);
}
.section-dark .section-title,
.section-mid .section-title { color: var(--white); }
.section-subtitle {
    font-size: 1.05rem;
    color: var(--gray-mid);
    margin-bottom: 48px;
    max-width: 600px;
}
.section-dark .section-subtitle,
.section-mid .section-subtitle { color: rgba(255,255,255,0.8); }
.text-center { text-align: center; }
.text-center .section-subtitle { margin-left: auto; margin-right: auto; }

/* ---- CARDS GRID ---- */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
    margin-top: 16px;
}
.card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 36px 28px;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
    border-top: 4px solid var(--blue-main);
}
.card:hover { transform: translateY(-6px); box-shadow: 0 12px 36px rgba(26,58,92,0.15); }
.card-icon { font-size: 2.4rem; color: var(--blue-main); margin-bottom: 16px; }
.card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; color: var(--blue-dark); }
.card p { font-size: 0.95rem; color: var(--gray-mid); }

/* ---- WHY US ---- */
.why-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.why-list { list-style: none; }
.why-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 22px;
}
.why-list li i { color: var(--accent); font-size: 1.3rem; margin-top: 3px; flex-shrink: 0; }
.why-list li strong { display: block; font-size: 1rem; color: var(--blue-dark); }
.why-list li span { font-size: 0.93rem; color: var(--gray-mid); }
.why-image {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    background: var(--blue-light);
    min-height: 340px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-mid);
    font-size: 1rem;
}

/* ---- PROCESS STEPS ---- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    counter-reset: step;
}
.step-card {
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    position: relative;
    border: 1px solid rgba(255,255,255,0.2);
}
.step-number {
    width: 52px;
    height: 52px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--white);
    margin: 0 auto 16px;
}
.step-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.step-card p { font-size: 0.88rem; opacity: 0.85; }

/* ---- CTA BANNER ---- */
.cta-banner {
    background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-mid) 100%);
    color: var(--white);
    padding: 60px 24px;
    text-align: center;
}
.cta-banner h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 14px; }
.cta-banner p { font-size: 1.05rem; margin-bottom: 30px; opacity: 0.9; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---- ACCORDION / FAQ ---- */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
    background: var(--white);
    border-radius: var(--radius);
    margin-bottom: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}
.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 20px 24px;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--blue-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    transition: background var(--transition);
}
.faq-question:hover { background: var(--blue-pale); }
.faq-question i { color: var(--blue-main); transition: transform var(--transition); flex-shrink: 0; }
.faq-question.active { background: var(--blue-dark); color: var(--white); }
.faq-question.active i { color: var(--accent); transform: rotate(180deg); }
.faq-answer {
    display: none;
    padding: 0 24px 20px;
    color: var(--gray-mid);
    font-size: 0.95rem;
    border-top: 1px solid var(--blue-pale);
}
.faq-answer.open { display: block; }

/* ---- FORMS ---- */
.form-section { max-width: 720px; margin: 0 auto; }
.form-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 44px 40px;
    box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 7px;
    color: var(--blue-dark);
    font-size: 0.93rem;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #d0dce8;
    border-radius: 10px;
    font-size: 0.97rem;
    font-family: inherit;
    color: var(--gray-dark);
    transition: border-color var(--transition), box-shadow var(--transition);
    background: #fafcff;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue-main);
    box-shadow: 0 0 0 3px rgba(90,127,191,0.18);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-submit { text-align: center; margin-top: 8px; }
.form-submit .btn { min-width: 200px; font-size: 1.05rem; padding: 15px 40px; }

/* Alert messages */
.alert {
    padding: 16px 20px;
    border-radius: 10px;
    margin-bottom: 24px;
    font-weight: 600;
}
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-error { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

/* ---- PAGE HERO ---- */
.page-hero {
    background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-mid) 100%);
    color: var(--white);
    padding: 70px 24px;
    text-align: center;
}
.page-hero h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; margin-bottom: 12px; }
.page-hero p { font-size: 1.1rem; opacity: 0.88; max-width: 600px; margin: 0 auto; }

/* ---- SERVICE CARDS ---- */
.service-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform var(--transition);
}
.service-card:hover { transform: translateY(-5px); }
.service-card-header {
    background: linear-gradient(135deg, var(--blue-dark), var(--blue-mid));
    color: var(--white);
    padding: 28px 24px;
    text-align: center;
}
.service-card-header i { font-size: 2.5rem; margin-bottom: 12px; color: var(--accent); }
.service-card-header h3 { font-size: 1.15rem; font-weight: 700; }
.service-card-body { padding: 24px; }
.service-card-body p { color: var(--gray-mid); font-size: 0.93rem; margin-bottom: 16px; }
.service-card-body ul { list-style: none; }
.service-card-body ul li {
    padding: 5px 0;
    color: var(--gray-mid);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
.service-card-body ul li::before { content: "✓"; color: var(--accent); font-weight: 700; }

/* ---- TESTIMONIALS ---- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.testimonial-card {
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 28px;
    border: 1px solid rgba(255,255,255,0.15);
}
.testimonial-stars { color: #ffc107; margin-bottom: 12px; font-size: 1rem; }
.testimonial-text { font-size: 0.95rem; opacity: 0.9; margin-bottom: 16px; font-style: italic; }
.testimonial-author { font-weight: 700; font-size: 0.9rem; }

/* ---- WATER TEST RESULTS ---- */
.water-params {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin: 32px 0;
}
.param-card {
    background: var(--white);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    border-top: 3px solid var(--blue-main);
    cursor: pointer;
    transition: all var(--transition);
}
.param-card:hover { transform: translateY(-3px); border-top-color: var(--accent); }
.param-card i { font-size: 1.8rem; color: var(--blue-main); margin-bottom: 10px; }
.param-card h4 { font-size: 0.9rem; color: var(--blue-dark); font-weight: 700; margin-bottom: 4px; }
.param-card p { font-size: 0.8rem; color: var(--gray-mid); }

/* ---- STATS ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
    text-align: center;
}
.stat-item { }
.stat-number {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}
.stat-label { font-size: 0.95rem; opacity: 0.85; margin-top: 6px; }

/* ---- CONTACT INFO ---- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}
.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
}
.contact-info-item i {
    font-size: 1.4rem;
    color: var(--accent);
    margin-top: 3px;
    flex-shrink: 0;
}
.contact-info-item h4 { font-size: 0.95rem; font-weight: 700; color: var(--blue-dark); margin-bottom: 4px; }
.contact-info-item p, .contact-info-item a { font-size: 0.93rem; color: var(--gray-mid); }

/* ---- MAP PLACEHOLDER ---- */
.map-placeholder {
    width: 100%;
    height: 300px;
    background: var(--blue-pale);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-mid);
    font-size: 1rem;
    font-weight: 600;
    margin-top: 24px;
    border: 2px dashed var(--blue-light);
}

/* ---- FOOTER ---- */
.site-footer { background: var(--blue-dark); color: rgba(255,255,255,0.85); }
.footer-top { padding: 60px 24px 40px; }
.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
}
.footer-logo { max-width: 180px; margin-bottom: 16px; filter: brightness(0) invert(1); opacity: 0.9; }
.footer-col p { font-size: 0.9rem; line-height: 1.7; }
.footer-col h4 { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: 16px; border-bottom: 2px solid var(--accent); padding-bottom: 8px; display: inline-block; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 0.9rem; color: rgba(255,255,255,0.75); transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--accent); }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px; font-size: 0.9rem; }
.footer-contact li i { color: var(--accent); margin-top: 3px; flex-shrink: 0; }
.footer-contact a { color: rgba(255,255,255,0.75); }
.footer-contact a:hover { color: var(--accent); }
.footer-social { display: flex; gap: 12px; margin-top: 20px; }
.footer-social a {
    width: 38px;
    height: 38px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: background var(--transition);
}
.footer-social a:hover { background: var(--accent); }
.footer-bottom {
    background: rgba(0,0,0,0.25);
    padding: 16px 24px;
    text-align: center;
    font-size: 0.83rem;
    color: rgba(255,255,255,0.55);
}

/* ---- INTERACTIVE WATER QUALITY CHECKER ---- */
.checker-wrap {
    background: var(--white);
    border-radius: var(--radius);
    padding: 36px;
    box-shadow: var(--shadow);
    max-width: 700px;
    margin: 0 auto;
}
.checker-wrap h3 { color: var(--blue-dark); font-size: 1.3rem; margin-bottom: 20px; }
.slider-group { margin-bottom: 24px; }
.slider-group label { font-weight: 600; color: var(--blue-dark); font-size: 0.93rem; display: flex; justify-content: space-between; margin-bottom: 8px; }
.slider-group label span { color: var(--blue-main); }
input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    height: 6px;
    border-radius: 3px;
    background: var(--blue-light);
    outline: none;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--blue-main);
    cursor: pointer;
    transition: background var(--transition);
}
input[type="range"]::-webkit-slider-thumb:hover { background: var(--blue-dark); }
.checker-result {
    background: var(--blue-pale);
    border-radius: 10px;
    padding: 20px;
    margin-top: 24px;
    border-left: 4px solid var(--blue-main);
}
.checker-result h4 { color: var(--blue-dark); margin-bottom: 8px; }
.checker-result p { color: var(--gray-mid); font-size: 0.93rem; }

/* ---- RESPONSIVE ---- */
/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
    .why-grid { grid-template-columns: 1fr; }
    .why-image { min-height: 220px; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        padding: 16px 0;
        background: var(--blue-dark);
        position: absolute;
        top: 58px;
        left: 0;
        gap: 2px;
        align-items: stretch;
    }
    .nav-links.open { display: flex; }
    .nav-links a { border-radius: 0; padding: 12px 24px; }
    .nav-links a.nav-cta { border-radius: 0; margin-left: 0; }
    .nav-inner { justify-content: flex-start; }
    .form-row { grid-template-columns: 1fr; }
    .form-card { padding: 28px 20px; }
    .trust-strip-inner { flex-direction: column; align-items: flex-start; }
    .cards-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 1.8rem; }
    .section { padding: 40px 16px; }
    .page-hero { padding: 50px 16px; }
    .cta-banner { padding: 40px 16px; }
    .top-bar-inner { flex-direction: column; gap: 4px; }
    .water-params { grid-template-columns: repeat(2, 1fr); }
    .checker-wrap { padding: 24px 16px; }
}

@media (max-width: 600px) {
    .footer-grid { grid-template-columns: 1fr; }
    .cards-grid { grid-template-columns: 1fr; }
    .hero { min-height: 420px; }
    .section { padding: 36px 14px; }
    .card { padding: 24px 18px; }
    .service-card-body { padding: 18px; }
    .form-card { padding: 22px 14px; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    body { overflow-x: hidden; }
    .container { padding: 0 14px; }
    .nav-inner { padding: 0 14px; }
    .top-bar-inner { padding: 0 14px; }
    .logo-bar { padding: 12px 14px; }
}

html, body {
    width: 100%;
    overflow-x: hidden;
}

.section,
.cta-banner,
.trust-strip,
.page-hero,
.hero,
.top-bar,
.logo-bar,
.navbar,
.site-footer {
    width: 100%;
    box-sizing: border-box;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
    box-sizing: border-box;
}