/* ===== CSS Variables & Reset ===== */
:root {
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-200: #bfdbfe;
    --blue-300: #7fc8f8;
    --blue-400: #38bdf8;
    --blue-500: #0ea5e9;
    --blue-600: #0284c7;
    --blue-700: #0369a1;
    --blue-800: #1e3a5f;
    --blue-900: #0c1d33;
    --navy: #1a2e4a;
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 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);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-700);
    line-height: 1.6;
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: inherit;
    line-height: 1.4;
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
    color: white;
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.35);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--blue-400), var(--blue-500));
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.45);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--blue-600);
    border: 2px solid var(--blue-200);
}

.btn-outline:hover {
    background: var(--blue-50);
    border-color: var(--blue-400);
}

.btn-ghost {
    background: transparent;
    color: var(--gray-500);
    padding: 12px 16px;
}

.btn-ghost:hover {
    color: var(--blue-600);
    background: var(--blue-50);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.05rem;
    border-radius: 12px;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    transition: all 0.3s;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 90px;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 72px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-links a {
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--gray-600);
    transition: all 0.2s;
}

.nav-links a:hover {
    color: var(--blue-600);
    background: var(--blue-50);
}

.nav-cta {
    background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
    color: white !important;
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
    transition: all 0.25s;
}

.nav-cta:hover {
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.4);
    transform: translateY(-1px);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gray-600);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    padding: 160px 0 80px;
    overflow: hidden;
    background: linear-gradient(165deg, var(--blue-900) 0%, var(--blue-800) 30%, var(--blue-600) 70%, var(--blue-400) 100%);
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(56, 189, 248, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    padding: 8px 20px;
    border-radius: 100px;
    color: var(--blue-200);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.1;
    color: white;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.gradient-text {
    background: linear-gradient(135deg, var(--blue-300), var(--blue-200), #e0f2fe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero .btn-primary {
    background: white;
    color: var(--blue-700);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.hero .btn-primary:hover {
    background: var(--blue-50);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.hero .btn-outline {
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.hero .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-trust {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    font-weight: 500;
}

.trust-icon {
    width: 18px;
    height: 18px;
    color: var(--blue-300);
}

.hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-logo-img {
    width: 100%;
    max-width: 420px;
    filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.3));
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: auto;
}

/* ===== Section Styles ===== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    background: var(--blue-50);
    color: var(--blue-600);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    color: var(--blue-900);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ===== Services ===== */
.services {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all 0.3s ease;
}

.service-card:hover {
    border-color: var(--blue-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--blue-500);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--blue-900);
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.92rem;
    color: var(--gray-500);
    line-height: 1.65;
}

/* ===== Why Us ===== */
.why-us {
    background: var(--gray-50);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.why-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    border: 1px solid var(--gray-200);
    transition: all 0.3s ease;
    position: relative;
}

.why-card:hover {
    border-color: var(--blue-200);
    box-shadow: var(--shadow-lg);
}

.why-number {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--blue-100), var(--blue-200));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}

.why-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--blue-900);
    margin-bottom: 10px;
}

.why-card p {
    font-size: 0.92rem;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ===== Estimator ===== */
.estimator {
    background: var(--white);
}

.estimator-wrapper {
    max-width: 640px;
    margin: 0 auto;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 48px 40px;
    box-shadow: var(--shadow-lg);
}

.form-step {
    display: none;
}

.form-step.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-step-title {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--blue-900);
    margin-bottom: 28px;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
    color: white;
    font-size: 0.9rem;
    font-weight: 700;
    flex-shrink: 0;
}

.form-group {
    margin-bottom: 24px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group > label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 12px;
    font-size: 0.95rem;
}

.label-hint {
    font-weight: 400;
    color: var(--gray-400);
    font-size: 0.85rem;
}

/* Radio Cards */
.radio-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.radio-card input {
    display: none;
}

.radio-card-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 24px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    font-weight: 600;
    color: var(--gray-600);
}

.radio-card-content:hover {
    border-color: var(--blue-300);
    background: var(--blue-50);
}

.radio-card input:checked + .radio-card-content {
    border-color: var(--blue-500);
    background: var(--blue-50);
    color: var(--blue-700);
    box-shadow: 0 0 0 1px var(--blue-500);
}

.radio-icon {
    width: 40px;
    height: 40px;
    color: inherit;
}

/* Checkbox Cards */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-card input {
    display: none;
}

.checkbox-card-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 16px 20px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
}

.checkbox-card-content:hover {
    border-color: var(--blue-300);
    background: var(--blue-50);
}

.checkbox-card input:checked + .checkbox-card-content {
    border-color: var(--blue-500);
    background: var(--blue-50);
    box-shadow: 0 0 0 1px var(--blue-500);
}

.checkbox-card-content strong {
    font-size: 0.95rem;
    color: var(--gray-700);
}

.checkbox-card-content span {
    font-size: 0.82rem;
    color: var(--gray-400);
}

.checkbox-card input:checked + .checkbox-card-content strong {
    color: var(--blue-700);
}

/* Counter Inputs */
.counter-input {
    display: flex;
    align-items: center;
    gap: 0;
    max-width: 200px;
}

.counter-btn {
    width: 44px;
    height: 44px;
    border: 2px solid var(--gray-200);
    background: var(--white);
    font-size: 1.3rem;
    color: var(--gray-500);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-family: inherit;
}

.counter-btn.minus {
    border-radius: 10px 0 0 10px;
    border-right: none;
}

.counter-btn.plus {
    border-radius: 0 10px 10px 0;
    border-left: none;
}

.counter-btn:hover {
    background: var(--blue-50);
    border-color: var(--blue-300);
    color: var(--blue-600);
}

.counter-input input {
    width: 60px;
    height: 44px;
    border: 2px solid var(--gray-200);
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-700);
    font-family: inherit;
    -moz-appearance: textfield;
}

.counter-input input::-webkit-outer-spin-button,
.counter-input input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Form Navigation */
.form-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-100);
}

.step-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gray-200);
    transition: all 0.3s;
}

.dot.active {
    background: var(--blue-500);
    width: 24px;
    border-radius: 4px;
}

.dot.completed {
    background: var(--blue-300);
}

/* Quote Result */
.quote-result {
    animation: fadeIn 0.4s ease;
}

.quote-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--blue-100);
}

.quote-logo {
    height: 56px;
    width: auto;
}

.quote-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--blue-900);
}

.quote-date {
    font-size: 0.85rem;
    color: var(--gray-400);
    margin-top: 2px;
}

.quote-line-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.quote-line {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

.quote-line-label {
    color: var(--gray-600);
    font-size: 0.95rem;
}

.quote-line-detail {
    font-size: 0.8rem;
    color: var(--gray-400);
}

.quote-line-price {
    font-weight: 600;
    color: var(--gray-700);
}

.quote-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
    border-radius: var(--radius);
    font-weight: 700;
    color: var(--blue-900);
    font-size: 1.15rem;
    margin-bottom: 24px;
}

.quote-price {
    font-size: 1.6rem;
    background: linear-gradient(135deg, var(--blue-600), var(--blue-700));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.quote-estimate-banner {
    display: flex;
    gap: 14px;
    padding: 20px 24px;
    background: #fef3c7;
    border: 2px solid #f59e0b;
    border-radius: var(--radius);
    margin-bottom: 28px;
}

.quote-estimate-banner svg {
    flex-shrink: 0;
    color: #d97706;
    margin-top: 2px;
    width: 24px;
    height: 24px;
}

.quote-estimate-banner strong {
    display: block;
    font-size: 1rem;
    color: #92400e;
    margin-bottom: 6px;
}

.quote-estimate-banner p {
    font-size: 0.88rem;
    color: #a16207;
    line-height: 1.6;
    margin: 0;
}

.quote-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.quote-actions .btn-primary {
    flex: 1;
    justify-content: center;
}

/* ===== Contact ===== */
.contact {
    background: var(--gray-50);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.contact-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: all 0.3s;
}

.contact-card:hover {
    border-color: var(--blue-200);
    box-shadow: var(--shadow-lg);
}

.contact-card.primary-contact {
    border-color: var(--blue-200);
    background: linear-gradient(to bottom, var(--blue-50), var(--white));
    position: relative;
}

.contact-card.primary-contact::before {
    content: 'Preferred';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
    color: white;
    padding: 4px 14px;
    border-radius: 100px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--blue-50), var(--blue-100));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: var(--blue-500);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--blue-900);
    margin-bottom: 8px;
}

.contact-detail {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--blue-600);
    margin-bottom: 8px;
}

.contact-detail a:hover {
    color: var(--blue-500);
}

.contact-note {
    font-size: 0.85rem;
    color: var(--gray-400);
    line-height: 1.6;
}

/* ===== Footer ===== */
.footer-wave-section {
    position: relative;
    margin-top: -1px;
}

.footer-wave-top {
    line-height: 0;
    background: var(--gray-50);
}

.footer-wave-top svg {
    width: 100%;
    height: auto;
    display: block;
}

.footer-wave-body {
    height: 60px;
    background: var(--blue-800);
}

.footer-wave-bottom {
    line-height: 0;
    background: var(--white);
}

.footer-wave-bottom svg {
    width: 100%;
    height: auto;
    display: block;
}

.footer {
    background: var(--white);
    color: var(--gray-600);
    padding-top: 48px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--gray-200);
}

.footer-logo {
    height: 80px;
    width: auto;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 320px;
    color: var(--gray-500);
}

.footer h4 {
    color: var(--blue-900);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}

.footer-links a,
.footer-contact a,
.footer-contact p {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 10px;
    transition: color 0.2s;
    color: var(--gray-500);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--blue-600);
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 0.82rem;
    color: var(--gray-400);
}

/* ===== Mobile ===== */
@media (max-width: 768px) {
    .nav-links, .nav-cta {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .navbar.mobile-open .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        padding: 16px 24px;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--gray-200);
    }

    .navbar.mobile-open .nav-cta {
        display: inline-flex;
        position: absolute;
        top: calc(72px + var(--mobile-links-height, 200px));
    }

    .hero {
        padding: 140px 0 60px;
        min-height: auto;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-trust {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }

    .hero-logo-img {
        max-width: 240px;
    }

    section {
        padding: 64px 0;
    }

    .why-grid {
        grid-template-columns: 1fr;
    }

    .estimator-wrapper {
        padding: 32px 20px;
    }

    .radio-group {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .btn-lg {
        padding: 14px 24px;
        font-size: 0.95rem;
        width: 100%;
        justify-content: center;
    }
}