/* ===== CSS VARIABLES (LIGHT THEME) ===== */
:root {
    --bg-primary: #fafafa;
    --bg-secondary: #f4f7fa;
    --bg-card: #ffffff;
    --bg-footer: #1a2530;
    --text-primary: #2c3e50;
    --text-secondary: #4a4a4a;
    --text-muted: #6b7b8d;
    --text-heading: #1a5276;
    --accent: #2980b9;
    --accent-hover: #1a6fa3;
    --accent-light: #eaf2f8;
    --border: #dce1e6;
    --shadow: rgba(0, 0, 0, 0.06);
    --shadow-hover: rgba(0, 0, 0, 0.1);
    --navbar-bg: #ffffff;
    --navbar-shadow: rgba(0, 0, 0, 0.08);
    --table-header: #1a5276;
    --btn-reset-bg: #ecf0f1;
    --btn-reset-hover: #d5dbdb;
    --btn-reset-text: #34495e;
}

/* ===== DARK THEME ===== */
[data-theme="dark"] {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-card: #0f3460;
    --bg-footer: #0a0a1a;
    --text-primary: #e0e0e0;
    --text-secondary: #b8c5d4;
    --text-muted: #8899aa;
    --text-heading: #64b5f6;
    --accent: #42a5f5;
    --accent-hover: #64b5f6;
    --accent-light: #1a3a5c;
    --border: #2a4a6a;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.5);
    --navbar-bg: #0f3460;
    --navbar-shadow: rgba(0, 0, 0, 0.4);
    --table-header: #0f3460;
    --btn-reset-bg: #1a3a5c;
    --btn-reset-hover: #2a4a6a;
    --btn-reset-text: #b8c5d4;
}

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    color: #2980b9;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #1a5276;
}

ul {
    list-style: none;
}

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

/* ===== CONTAINER ===== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 32px;
    background: var(--navbar-bg);
    box-shadow: 0 2px 12px var(--navbar-shadow);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

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

.logo-img {
    height: 48px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 28px;
}

.nav-links li a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    padding: 8px 4px;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.nav-links li a:hover,
.nav-links li a.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.nav-social {
    display: flex;
    gap: 16px;
    align-items: center;
}

.nav-social a {
    color: var(--text-primary);
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.nav-social a:hover {
    color: var(--accent);
}

/* ===== DARK MODE TOGGLE ===== */
.dark-mode-toggle {
    position: relative;
    width: 48px;
    height: 26px;
    border-radius: 13px;
    border: 2px solid var(--border);
    background: var(--bg-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5px;
    transition: all 0.3s ease;
    margin-left: 8px;
}

.dark-mode-toggle:hover {
    border-color: var(--accent);
}

.dark-mode-toggle .fa-moon {
    font-size: 0.7rem;
    color: #7f8c8d;
    transition: opacity 0.3s ease;
}

.dark-mode-toggle .fa-sun {
    font-size: 0.7rem;
    color: #f39c12;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.dark-mode-toggle::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    transition: transform 0.3s ease;
}

[data-theme="dark"] .dark-mode-toggle::after {
    transform: translateX(22px);
}

[data-theme="dark"] .dark-mode-toggle .fa-moon {
    opacity: 0;
}

[data-theme="dark"] .dark-mode-toggle .fa-sun {
    opacity: 1;
}

/* ===== PAGE HEADER ===== */
.page-header {
    margin-top: 72px;
    padding: 64px 24px;
    background: linear-gradient(135deg, #1a5276 0%, #2980b9 50%, #3498db 100%);
    text-align: center;
}

.page-header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    color: #ffffff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* ===== HERO ===== */
.hero {
    position: relative;
    margin-top: 72px;
    height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a5276 0%, #2980b9 50%, #3498db 100%);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: url('./assets/img_5.png') center/cover no-repeat;
    opacity: 0.15;
}

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

.hero-content h1 {
    font-size: 2.4rem;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.4;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    font-style: italic;
}

/* ===== SECTIONS ===== */
.section {
    padding: 72px 0;
    transition: background-color 0.3s ease;
}

.section:nth-child(even) {
    background-color: var(--bg-secondary);
}

.section h2 {
    font-size: 1.9rem;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

.section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}

.section h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    margin-top: 24px;
}

.section p {
    margin-bottom: 16px;
    font-size: 1.05rem;
    color: var(--text-secondary);
}

.section ul {
    margin-bottom: 16px;
    padding-left: 20px;
}

.section ul li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 1.02rem;
    color: var(--text-secondary);
}

.section ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

/* ===== INTRO ===== */
.lead {
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--text-primary);
}

.highlight {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-heading);
    font-style: italic;
}

/* ===== PAIN POINTS ===== */
.pain-points {
    margin: 32px 0;
    padding: 28px 32px;
    background: var(--bg-card);
    border-radius: 12px;
    border-left: 4px solid var(--accent);
    box-shadow: 0 4px 16px var(--shadow);
}

.pain-points h3 {
    margin-top: 0;
    color: var(--text-heading);
}

/* ===== INSIGHT BOX ===== */
.insight-box {
    margin: 32px 0;
    padding: 28px 32px;
    background: var(--accent-light);
    border-radius: 12px;
    border-left: 4px solid var(--accent);
}

.insight-box p {
    color: var(--text-primary);
    font-weight: 500;
}

/* ===== SYMPTOMS GRID ===== */
.symptoms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin: 32px 0;
}

.symptom-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-card);
    border-radius: 8px;
    box-shadow: 0 2px 8px var(--shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.symptom-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

.symptom-item i {
    font-size: 1.3rem;
    color: var(--accent);
    min-width: 28px;
    text-align: center;
}

.symptom-item span {
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* ===== PROCESS STEPS ===== */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 32px;
}

.step {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 32px 28px;
    box-shadow: 0 4px 16px var(--shadow);
    border-top: 4px solid var(--accent);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.step:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow-hover);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--accent);
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 50%;
    margin-bottom: 16px;
}

.step h3 {
    margin-top: 0;
    color: var(--text-heading);
}

.step-note {
    font-style: italic;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ===== RESULTS LIST ===== */
.results-list {
    padding-left: 0;
}

.results-list li {
    padding: 10px 0;
    padding-left: 0;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.05rem;
}

.results-list li::before {
    display: none;
}

.results-list li i {
    color: #27ae60;
    font-size: 1.1rem;
}

/* ===== PHILOSOPHY BOX ===== */
.philosophy-box {
    margin-top: 32px;
    padding: 28px 32px;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--shadow);
    border-left: 4px solid #f39c12;
}

.philosophy-box h3 {
    margin-top: 0;
    color: var(--text-heading);
}

.philosophy-box h3 i {
    color: #f39c12;
    margin-right: 8px;
}

/* ===== ABOUT ===== */
.about-intro {
    display: flex;
    align-items: flex-start;
    gap: 32px;
    margin-bottom: 32px;
}

.about-photo {
    flex-shrink: 0;
}

.about-photo img {
    width: 200px;
    height: 250px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--shadow);
}

.about-intro-text {
    flex: 1;
    display: flex;
    align-items: center;
}

.about-tagline {
    font-size: 1.15rem;
    color: var(--text-heading);
    border-left: 4px solid var(--accent);
    padding-left: 16px;
    margin-bottom: 0;
}

.about-philosophy {
    margin-top: 40px;
    padding: 32px;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--shadow);
    transition: background-color 0.3s ease;
}

.about-philosophy h3 {
    margin-top: 0;
    color: var(--text-heading);
}

.about-values {
    margin-top: 32px;
    padding: 32px;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--shadow);
}

.about-values h3 {
    margin-top: 0;
    color: var(--text-heading);
}

.about-values ul {
    padding-left: 0;
}

.about-values ul li {
    padding: 10px 0;
    padding-left: 0;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.about-values ul li::before {
    display: none;
}

.about-values ul li i {
    color: #27ae60;
    margin-top: 4px;
}

.about-closing {
    margin-top: 40px;
    text-align: center;
    padding: 32px;
    background: var(--accent-light);
    border-radius: 12px;
}

.about-closing-photo {
    margin: 24px auto 16px;
}

.about-closing-photo img {
    width: 180px;
    height: 220px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--shadow);
}

.about-signature {
    font-size: 1.2rem;
    color: var(--text-heading);
    margin-top: 16px;
}

/* ===== SERVICES ===== */
.service-category {
    margin-bottom: 40px;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.category-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--accent);
    color: #ffffff;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 50%;
    flex-shrink: 0;
}

.category-header h3 {
    margin: 0;
    color: var(--text-heading);
    font-size: 1.2rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.service-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--bg-card);
    border-radius: 8px;
    box-shadow: 0 2px 8px var(--shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.3s ease;
}

.service-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

.service-item i {
    font-size: 1.3rem;
    color: var(--accent);
    min-width: 28px;
    text-align: center;
}

.service-item span {
    font-size: 0.95rem;
    color: var(--text-primary);
}

.services-benefits {
    background: var(--bg-card);
    padding: 32px;
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--shadow);
    transition: background-color 0.3s ease;
    margin-top: 40px;
}

.services-benefits h3 {
    color: var(--text-heading);
    margin-top: 0;
}

.services-benefits ul {
    columns: 2;
    column-gap: 40px;
}

.benefits-highlight {
    margin-top: 24px;
    padding: 16px;
    background: var(--accent-light);
    border-radius: 8px;
    border-left: 4px solid var(--accent);
    font-size: 1.05rem;
}

/* ===== WHEN TO START ===== */
.when-to-start {
    margin-top: 48px;
}

.when-to-start h3 {
    color: var(--text-heading);
    font-size: 1.4rem;
    margin-bottom: 24px;
}

.when-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 12px;
    margin-bottom: 32px;
}

.when-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bg-card);
    border-radius: 8px;
    box-shadow: 0 2px 8px var(--shadow);
    border-left: 3px solid #e74c3c;
}

.when-item i {
    color: #e74c3c;
    font-size: 1.1rem;
    min-width: 24px;
    text-align: center;
}

.when-item span {
    font-size: 0.95rem;
    color: var(--text-primary);
}

.cta-box {
    margin-top: 32px;
    padding: 32px;
    background: var(--accent-light);
    border-radius: 12px;
    text-align: center;
    border: 2px solid var(--accent);
}

.cta-box p {
    color: var(--text-primary);
    font-size: 1.05rem;
}

.cta-box .btn {
    margin-top: 16px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

/* ===== REFERENCES ===== */
.references-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 32px;
    margin-top: 32px;
}

.reference-item {
    text-align: center;
    padding: 24px;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--shadow);
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.reference-item:hover {
    transform: translateY(-4px);
}

.reference-item img {
    width: 160px;
    height: 160px;
    object-fit: contain;
    margin-bottom: 16px;
    border-radius: 8px;
}

.reference-item p {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ===== CONTACT ===== */
.contact-info {
    margin-bottom: 40px;
}

.contact-info table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px var(--shadow);
    transition: background-color 0.3s ease;
}

.contact-info th,
.contact-info td {
    padding: 16px 24px;
    text-align: left;
}

.contact-info th {
    background: var(--table-header);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.95rem;
}

.contact-info td {
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
    color: var(--text-primary);
}

.contact-form-wrapper {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 16px var(--shadow);
    transition: background-color 0.3s ease;
}

.contact-form-wrapper h3 {
    color: var(--text-heading);
    margin-top: 0;
    margin-bottom: 8px;
}

.contact-form {
    margin-top: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.required {
    color: #e74c3c;
}

.form-group input[type="email"],
.form-group input[type="text"],
.form-group input[type="tel"],
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.15);
}

.radio-group {
    display: flex;
    gap: 24px;
    margin-top: 8px;
}

.radio-label,
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 400;
    font-size: 1rem;
    color: var(--text-secondary);
}

.radio-label input,
.checkbox-label input {
    accent-color: var(--accent);
    width: 18px;
    height: 18px;
}

.checkbox-group {
    margin-top: 8px;
}

.form-buttons {
    display: flex;
    gap: 16px;
    margin-top: 28px;
}

.btn {
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-reset {
    background: var(--btn-reset-bg);
    color: var(--btn-reset-text);
}

.btn-reset:hover {
    background: var(--btn-reset-hover);
}

.btn-submit {
    background: var(--accent);
    color: #ffffff;
}

.btn-submit:hover {
    background: var(--accent-hover);
    box-shadow: 0 4px 12px rgba(41, 128, 185, 0.3);
}

/* ===== FORM STATUS ===== */
.form-status {
    padding: 14px 20px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 16px;
    display: none;
}

.form-status-success {
    display: block;
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-status-error {
    display: block;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

[data-theme="dark"] .form-status-success {
    background: #1a3a2a;
    color: #7dcea0;
    border-color: #2a5a3a;
}

[data-theme="dark"] .form-status-error {
    background: #3a1a1a;
    color: #e07070;
    border-color: #5a2a2a;
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-footer);
    padding: 40px 0;
    color: #bdc3c7;
    transition: background-color 0.3s ease;
}

.footer-content {
    text-align: center;
}

.footer-logo-img {
    height: 40px;
    margin-bottom: 16px;
    filter: brightness(1.5);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 16px;
}

.footer-links a {
    color: #bdc3c7;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

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

.footer-copy {
    font-size: 0.85rem;
    color: #7f8c8d;
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 999;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    background: var(--accent);
    color: #ffffff;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(41, 128, 185, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--accent-hover);
    box-shadow: 0 6px 20px rgba(41, 128, 185, 0.5);
    transform: translateY(-2px);
}

/* ===== NAV RIGHT ===== */
.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ===== HAMBURGER BUTTON ===== */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.hamburger:hover {
    background: var(--bg-secondary);
}

.hamburger-line {
    display: block;
    width: 22px;
    height: 2.5px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== MOBILE MENU ===== */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
    display: block;
    opacity: 1;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--navbar-bg);
    z-index: 999;
    box-shadow: 0 8px 24px var(--shadow);
    transform: translateY(-100%);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav-links {
    padding: 16px 0;
}

.mobile-nav-links li {
    border-bottom: 1px solid var(--border);
}

.mobile-nav-links li:last-child {
    border-bottom: none;
}

.mobile-nav-links li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.mobile-nav-links li a:hover {
    background: var(--bg-secondary);
    color: var(--accent);
}

.mobile-nav-links li a.active {
    color: var(--accent);
    background: var(--accent-light);
    font-weight: 600;
    border-left: 4px solid var(--accent);
}

.mobile-nav-links li a i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .navbar {
        padding: 10px 16px;
    }

    .nav-links {
        display: none;
    }

    .nav-social {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .hero {
        height: 320px;
    }

    .hero-content h1 {
        font-size: 1.6rem;
    }

    .section {
        padding: 48px 0;
    }

    .section h2 {
        font-size: 1.5rem;
    }

    .about-intro {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .about-photo img {
        width: 160px;
        height: 200px;
    }

    .about-tagline {
        border-left: none;
        padding-left: 0;
        border-top: 4px solid var(--accent);
        padding-top: 16px;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

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

    .services-benefits ul {
        columns: 1;
    }

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

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

    .references-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .radio-group {
        flex-direction: column;
        gap: 12px;
    }

    .form-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .contact-form-wrapper {
        padding: 24px;
    }

    .pain-points,
    .insight-box,
    .philosophy-box {
        padding: 20px 24px;
    }
}

@media (max-width: 480px) {
    .references-grid {
        grid-template-columns: 1fr;
    }

    .hero-content h1 {
        font-size: 1.3rem;
    }
}