/* ============================================================
   THEME TOKENS
   ============================================================ */
:root {
    --accent:            #5cdae9;
    --accent-rgb:        92, 218, 233;
    --secondary:         #4f46e5;
    --secondary-rgb:     79, 70, 229;
    --secondary-text:    #a5b4fc;
    --surface-dark-rgb:  11, 11, 30;
    --surface-mid-rgb:   26, 26, 46;
    --surface-ui:        #11111f;
    --surface-ui-alt:    #1a1a2e;
    --accent-contrast:   #0b0b16;
    --ui-text:           #e2f8fb;
    --accent-light:      #a5f3fc;
}

body[data-theme="bamboo"],
body[data-theme="stream"],
body[data-theme="path"] {
    --accent:           #5cb85c;
    --accent-rgb:       92, 184, 92;
    --secondary:        #2a7a2a;
    --secondary-rgb:    42, 122, 42;
    --secondary-text:   #a5d4a5;
    --surface-dark-rgb: 8, 18, 8;
    --surface-mid-rgb:  14, 30, 14;
    --surface-ui:       #0d1f0d;
    --surface-ui-alt:   #0a180a;
    --accent-contrast:  #0a1a0a;
    --ui-text:          #e4f5e4;
    --accent-light:     #bff0bf;
}

body[data-theme="lavender"] {
    --accent:           #d4a5e8;
    --accent-rgb:       212, 165, 232;
    --secondary:        #a06fc8;
    --secondary-rgb:    160, 111, 200;
    --secondary-text:   #e6cef5;
    --surface-dark-rgb: 26, 18, 32;
    --surface-mid-rgb:  42, 30, 50;
    --surface-ui:       #211730;
    --surface-ui-alt:   #18101f;
    --accent-contrast:  #1d1226;
    --ui-text:          #f4ecf8;
    --accent-light:     #ecd6f8;
}

body[data-theme="dusky"],
body[data-theme="misty"],
body[data-theme="road"] {
    --accent:           #9aa3ad;
    --accent-rgb:       154, 163, 173;
    --secondary:        #6b7480;
    --secondary-rgb:    107, 116, 128;
    --secondary-text:   #c2c8cf;
    --surface-dark-rgb: 18, 20, 23;
    --surface-mid-rgb:  30, 33, 37;
    --surface-ui:       #181b1f;
    --surface-ui-alt:   #121417;
    --accent-contrast:  #15171a;
    --ui-text:          #e6e9ed;
    --accent-light:     #d4d8dd;
}

/* ============================================================
   BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    height: 100dvh;
    overflow: hidden;
    background-image: url(../images/road.jpg);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    -webkit-font-smoothing: antialiased;
}

body[data-theme="stars"]    { background-image: url(../images/stars.jpg); }
body[data-theme="bamboo"]   { background-image: url(../images/bamboo.jpg); }
body[data-theme="dusky"]    { background-image: url(../images/dusky.jpg); }
body[data-theme="jellyfish"]{ background-image: url(../images/jellyfish.jpg); }
body[data-theme="lake"]     { background-image: url(../images/lake.jpg); }
body[data-theme="lavender"] { background-image: url(../images/lavender.jpg); }
body[data-theme="misty"]    { background-image: url(../images/misty.jpg); }
body[data-theme="path"]     { background-image: url(../images/path.jpg); }
body[data-theme="reef"]     { background-image: url(../images/reef.jpg); }
body[data-theme="road"]     { background-image: url(../images/road.jpg); }
body[data-theme="stream"]   { background-image: url(../images/stream.jpg); }
body[data-theme="water"]    { background-image: url(../images/water.jpg); }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ============================================================
   APP LAYOUT
   ============================================================ */
#app-wrapper {
    display: flex;
    flex-direction: column;
    height: 100dvh;
    padding: 16px;
    gap: 12px;
}

/* ── NAVBAR ──────────────────────────────────────────────────── */
#navbar {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 12px 24px;
    background: rgba(var(--surface-dark-rgb), 0.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(var(--accent-rgb), 0.18);
    border-radius: 14px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
    flex-shrink: 0;
    position: relative;
    z-index: 20;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.nav-logo-img {
    height: 36px;
    width: auto;
    flex-shrink: 0;
}

.nav-brand-name {
    font-size: 17px;
    font-weight: 900;
    letter-spacing: 4px;
    color: var(--ui-text);
    text-shadow: 0 0 20px rgba(var(--accent-rgb), 0.4);
}

.nav-tabs {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}

.nav-tab {
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.4px;
    background: transparent;
    color: rgba(var(--accent-rgb), 0.6);
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    text-transform: none;
}

.nav-tab:hover {
    color: var(--ui-text);
    background: rgba(var(--accent-rgb), 0.08);
    border-color: rgba(var(--accent-rgb), 0.15);
}

.nav-tab.active {
    color: var(--accent);
    background: rgba(var(--accent-rgb), 0.12);
    border-color: rgba(var(--accent-rgb), 0.35);
    box-shadow: 0 0 12px rgba(var(--accent-rgb), 0.15);
}

/* hamburger — hidden on desktop */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-left: auto;
    flex-shrink: 0;
}

.nav-hamburger span {
    display: block;
    height: 2px;
    background: var(--ui-text);
    border-radius: 2px;
    transition: all 0.25s;
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ── CONTENT PANEL ───────────────────────────────────────────── */
#content-panel {
    flex: 1;
    overflow-y: auto;
    background: rgba(var(--surface-dark-rgb), 0.65);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(var(--accent-rgb), 0.15);
    border-radius: 14px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5),
                inset 0 1px 0 rgba(255, 255, 255, 0.05);
    scrollbar-width: thin;
    scrollbar-color: rgba(var(--accent-rgb), 0.3) transparent;
}

#content-panel::-webkit-scrollbar { width: 6px; }
#content-panel::-webkit-scrollbar-thumb { background: rgba(var(--accent-rgb), 0.3); border-radius: 3px; }

/* ── TAB PANELS ──────────────────────────────────────────────── */
.tab-panel {
    display: none;
    padding: 48px 56px 56px;
    animation: fadeIn 0.25s ease;
}

.tab-panel.active { display: block; }

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

/* ============================================================
   SHARED SECTION TYPOGRAPHY
   ============================================================ */
.section-header {
    margin-bottom: 40px;
}

.section-eyebrow,
.hero-eyebrow {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px;
    opacity: 0.8;
}

.section-title {
    margin: 0;
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 900;
    color: #fff;
    letter-spacing: 1px;
}

.section-meta {
    margin-top: 8px;
    font-size: 13px;
    color: rgba(var(--accent-rgb), 0.5);
}

/* ============================================================
   BUTTONS
   ============================================================ */
button {
    font-family: inherit;
    cursor: pointer;
    touch-action: manipulation;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
    display: inline-block;
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
    border-radius: 8px;
    text-shadow: 0 0 2px var(--accent);
}

.btn-primary:hover {
    background: var(--accent);
    color: var(--accent-contrast);
    text-shadow: none;
    box-shadow: 0 0 8px var(--accent), 0 0 24px rgba(var(--accent-rgb), 0.5);
    transform: translateY(-2px);
}

.btn-primary:active { transform: translateY(0); }

.btn-secondary {
    display: inline-block;
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    background: rgba(var(--secondary-rgb), 0.12);
    color: var(--secondary-text);
    border: 2px solid var(--secondary);
    border-radius: 8px;
}

.btn-secondary:hover {
    background: var(--secondary);
    color: #fff;
    box-shadow: 0 0 8px var(--secondary), 0 0 20px rgba(var(--secondary-rgb), 0.4);
    transform: translateY(-2px);
}

.btn-secondary:active { transform: translateY(0); }

/* ============================================================
   HOME TAB
   ============================================================ */
.hero {
    max-width: 680px;
    margin-bottom: 56px;
}

.hero-title {
    margin: 0 0 18px 0;
    font-size: clamp(32px, 5vw, 60px);
    font-weight: 900;
    line-height: 1.1;
    color: #fff;
    letter-spacing: 1px;
}

.hero-subtitle {
    font-size: 16px;
    line-height: 1.7;
    color: rgba(var(--accent-rgb), 0.7);
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.home-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.stat-card {
    background: rgba(var(--surface-mid-rgb), 0.7);
    border: 1px solid rgba(var(--accent-rgb), 0.18);
    border-radius: 12px;
    padding: 24px 20px;
    text-align: center;
    backdrop-filter: blur(8px);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    border-color: rgba(var(--accent-rgb), 0.4);
    box-shadow: 0 0 20px rgba(var(--accent-rgb), 0.1);
}

.stat-number {
    font-size: 32px;
    font-weight: 900;
    color: #fff;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-unit {
    font-size: 18px;
    color: var(--accent);
}

.stat-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: rgba(var(--accent-rgb), 0.55);
}

/* ============================================================
   ABOUT TAB
   ============================================================ */
.about-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-text p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 15px;
    line-height: 1.8;
    margin: 0 0 18px 0;
}

.about-text em {
    color: var(--accent);
    font-style: normal;
    font-weight: 600;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.value-card {
    background: rgba(var(--surface-mid-rgb), 0.6);
    border: 1px solid rgba(var(--accent-rgb), 0.15);
    border-radius: 12px;
    padding: 20px 22px;
    backdrop-filter: blur(6px);
    transition: border-color 0.2s;
}

.value-card:hover { border-color: rgba(var(--accent-rgb), 0.35); }

.value-icon {
    font-size: 20px;
    color: var(--accent);
    margin-bottom: 8px;
    line-height: 1;
}

.value-name {
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: #fff;
    margin-bottom: 6px;
}

.value-desc {
    font-size: 13px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================================
   SERVICES TAB
   ============================================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.service-card {
    background: rgba(var(--surface-mid-rgb), 0.65);
    border: 1px solid rgba(var(--accent-rgb), 0.15);
    border-radius: 14px;
    padding: 28px 24px;
    backdrop-filter: blur(8px);
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.service-card:hover {
    border-color: rgba(var(--accent-rgb), 0.4);
    box-shadow: 0 8px 32px rgba(var(--accent-rgb), 0.08);
    transform: translateY(-3px);
}

.service-icon {
    font-size: 24px;
    color: var(--accent);
    margin-bottom: 14px;
    line-height: 1;
    opacity: 0.7;
}

.service-name {
    font-size: 16px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 10px;
    letter-spacing: 0.3px;
}

.service-desc {
    font-size: 13px;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 16px;
}

.service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tag {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    padding: 3px 9px;
    border-radius: 20px;
    background: rgba(var(--accent-rgb), 0.1);
    color: var(--accent);
    border: 1px solid rgba(var(--accent-rgb), 0.25);
}

/* ============================================================
   CONTACT TAB
   ============================================================ */
.contact-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-block {}

.contact-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    opacity: 0.7;
    margin-bottom: 5px;
}

.contact-value {
    font-size: 14px;
    color: var(--ui-text);
    line-height: 1.6;
}

.contact-addr { color: rgba(255, 255, 255, 0.65); }

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: rgba(var(--accent-rgb), 0.6);
}

.form-input {
    width: 100%;
    padding: 11px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(var(--accent-rgb), 0.22);
    border-radius: 8px;
    color: var(--ui-text);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    appearance: none;
}

.form-input:focus {
    border-color: rgba(var(--accent-rgb), 0.6);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.1);
}

.form-input::placeholder { color: rgba(255, 255, 255, 0.25); }

.form-select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%239aa3ad'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.form-select option {
    background: var(--surface-ui-alt, #121417);
    color: var(--ui-text);
}

.form-textarea { resize: vertical; min-height: 120px; }

.form-submit { align-self: flex-start; }

.form-feedback {
    font-size: 13px;
    line-height: 1.5;
    min-height: 20px;
}

.form-feedback.success { color: #6ee7b7; }
.form-feedback.error   { color: #fca5a5; }

/* ============================================================
   PRIVACY / LEGAL TAB
   ============================================================ */
.legal-body {
    max-width: 760px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.legal-block h3 {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--accent);
    margin: 0 0 10px 0;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 2px;
}

.legal-block p,
.legal-block li {
    font-size: 14px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.65);
    margin: 0 0 8px 0;
}

.legal-block ul {
    padding-left: 20px;
    margin: 8px 0 12px;
}

.legal-block li { margin-bottom: 4px; }

.legal-link {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* ============================================================
   TOAST
   ============================================================ */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: rgba(var(--surface-mid-rgb), 0.95);
    border: 1px solid rgba(var(--accent-rgb), 0.3);
    color: var(--ui-text);
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    backdrop-filter: blur(12px);
    transition: transform 0.3s ease;
    pointer-events: none;
    z-index: 9999;
}

.toast.show { transform: translateX(-50%) translateY(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
    .home-grid         { grid-template-columns: repeat(2, 1fr); }
    .services-grid     { grid-template-columns: repeat(2, 1fr); }
    .about-body        { grid-template-columns: 1fr; gap: 32px; }
    .contact-layout    { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 640px) {
    #app-wrapper { padding: 10px; gap: 8px; }

    #navbar { padding: 10px 16px; }

    .nav-tabs {
        display: none;
        position: absolute;
        top: 70px;
        left: 10px;
        right: 10px;
        flex-direction: column;
        background: rgba(var(--surface-dark-rgb), 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border: 1px solid rgba(var(--accent-rgb), 0.2);
        border-radius: 12px;
        padding: 8px;
        z-index: 100;
        box-shadow: 0 8px 32px rgba(0,0,0,0.6);
    }

    .nav-tabs.open { display: flex; }

    .nav-tab {
        width: 100%;
        text-align: left;
        padding: 12px 16px;
        border-radius: 8px;
    }

    .nav-hamburger { display: flex; }

    .tab-panel { padding: 28px 20px 40px; }

    .hero-title { font-size: 32px; }

    .home-grid     { grid-template-columns: repeat(2, 1fr); }
    .services-grid { grid-template-columns: 1fr; }
    .form-row      { grid-template-columns: 1fr; }
}