/* Responsive Variables */
:root {
    --blueprint-blue: #2980B9;
    --safety-yellow: #F39C12;
    --concrete-grey: #BDC3C7;
    --dark-slate: #2C3E50;
    --white: #ffffff;
    
    --font-head: 'Teko', sans-serif;
    --font-mono: 'Roboto Mono', monospace;
}

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

body {
    background-color: #F0F2F5;
    color: var(--dark-slate);
    font-family: var(--font-mono);
    font-size: 15px;
    line-height: 1.6;
    /* Grid background effect */
    background-image: linear-gradient(#e0e0e0 1px, transparent 1px), linear-gradient(90deg, #e0e0e0 1px, transparent 1px);
    background-size: 40px 40px;
}

/* Layout */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}
.section-padding { padding: 80px 0; }
a { text-decoration: none; color: inherit; transition: 0.3s; }
img { max-width: 100%; height: auto; }

/* Header */
.tech-header {
    background: var(--dark-slate);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid var(--safety-yellow);
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-head);
    font-size: 2rem;
    font-weight: 500;
    color: var(--white);
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.yellow { color: var(--safety-yellow); }
.gear-spin { display: inline-block; animation: spin 10s linear infinite; }
@keyframes spin { 100% { transform: rotate(360deg); } }

/* Navigation */
.desktop-nav { display: none; }
.desktop-nav a {
    margin-left: 20px;
    color: var(--concrete-grey);
    font-size: 0.9rem;
    font-weight: 500;
}
.desktop-nav a:hover, .desktop-nav a.active { color: var(--safety-yellow); }

.btn-blueprint {
    border: 1px solid var(--safety-yellow);
    color: var(--safety-yellow) !important;
    padding: 8px 20px;
    border-radius: 0;
}
.btn-blueprint:hover { background: var(--safety-yellow); color: var(--dark-slate) !important; }

/* Mobile Menu */
.mobile-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}
.bar {
    width: 30px;
    height: 3px;
    background: var(--white);
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 250px;
    height: 100%;
    background: var(--dark-slate);
    z-index: 2000;
    transition: 0.3s;
    padding: 20px;
    display: flex;
    flex-direction: column;
    border-left: 3px solid var(--safety-yellow);
    box-shadow: -5px 0 15px rgba(0,0,0,0.5);
}
.mobile-menu.active { right: 0; }

.close-menu {
    align-self: flex-end;
    background: none;
    border: 1px solid var(--concrete-grey);
    color: var(--concrete-grey);
    padding: 5px 10px;
    cursor: pointer;
    font-family: var(--font-mono);
}

.mobile-menu nav a {
    display: block;
    color: var(--white);
    padding: 15px 0;
    border-bottom: 1px dashed #444;
    font-size: 1.1rem;
}

@media (min-width: 900px) {
    .mobile-toggle { display: none; }
    .desktop-nav { display: block; }
}

/* Hero Section */
.hero-blueprint {
    height: 80vh;
    background-size: cover;
    background-position: center;
    position: relative;
    border-bottom: 10px solid var(--dark-slate);
}
.blueprint-overlay {
    width: 100%;
    height: 100%;
    background: rgba(44, 62, 80, 0.9);
    background-image: linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
}
.hero-content { max-width: 800px; color: var(--white); }
.tech-badge {
    border: 1px solid var(--safety-yellow);
    color: var(--safety-yellow);
    display: inline-block;
    padding: 5px 10px;
    font-size: 0.8rem;
    margin-bottom: 20px;
    background: rgba(0,0,0,0.5);
}
.hero-content h1 {
    font-family: var(--font-head);
    font-size: clamp(3rem, 6vw, 6rem);
    line-height: 0.9;
    margin-bottom: 20px;
}
.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 40px;
    color: var(--concrete-grey);
}

/* Booking Engine */
.booking-engine {
    background: var(--white);
    padding: 20px;
    border: 1px solid var(--dark-slate);
    box-shadow: 10px 10px 0 rgba(0,0,0,0.2);
}
.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}
.input-wrap label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--dark-slate);
    margin-bottom: 5px;
    text-align: left;
}
.input-wrap input, .input-wrap select {
    width: 100%;
    padding: 10px;
    border: 2px solid #ddd;
    font-family: var(--font-mono);
    border-radius: 0;
    background: #f9f9f9;
}
.btn-check {
    width: 100%;
    background: var(--safety-yellow);
    color: var(--dark-slate);
    border: none;
    font-weight: 700;
    padding: 12px;
    cursor: pointer;
    font-family: var(--font-head);
    font-size: 1.2rem;
    margin-top: 10px;
}

@media (min-width: 768px) {
    .form-grid { grid-template-columns: 1fr 1fr 1fr auto; align-items: end; }
    .btn-check { margin-top: 0; }
}

/* Specs Section */
.section-head { text-align: center; margin-bottom: 50px; }
.section-head h2 { font-family: var(--font-head); font-size: 2.5rem; color: var(--dark-slate); margin-bottom: 10px; }
.ruler-line { width: 100px; height: 5px; background: repeating-linear-gradient(90deg, var(--dark-slate), var(--dark-slate) 10px, transparent 10px, transparent 20px); margin: 0 auto; }
.ruler-line.left { margin: 20px 0; }

.spec-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}
.spec-card {
    background: var(--white);
    padding: 30px;
    border: 2px solid #ddd;
    text-align: center;
    transition: 0.3s;
}
.spec-card:hover { border-color: var(--blueprint-blue); transform: translateY(-5px); }
.icon { font-size: 3rem; margin-bottom: 15px; display: block; }
.spec-card h3 { font-family: var(--font-head); font-size: 1.5rem; color: var(--dark-slate); }

@media (min-width: 768px) {
    .spec-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Blueprint Layout */
.blueprint-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
    align-items: center;
}
.blueprint-text h1 { font-family: var(--font-head); font-size: 2.5rem; color: var(--dark-slate); line-height: 1.1; }
.specs-list { list-style: none; margin-top: 20px; padding: 0; }
.specs-list li {
    background: var(--dark-slate);
    color: var(--white);
    padding: 10px;
    margin-bottom: 10px;
    font-size: 0.9rem;
}
.blueprint-img { position: relative; }
.blueprint-img img { border: 5px solid var(--dark-slate); filter: grayscale(20%); }
.dimension-lines {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: var(--safety-yellow);
    padding: 5px 10px;
    font-weight: 700;
    color: var(--dark-slate);
}

@media (min-width: 900px) {
    .blueprint-layout { grid-template-columns: 1fr 1fr; }
}

/* Feedback Grid */
.feedback-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}
.feedback-card {
    background: var(--white);
    padding: 30px;
    border: 1px solid #ccc;
    box-shadow: 5px 5px 0 rgba(0,0,0,0.1);
}
.highlight { border-top: 5px solid var(--safety-yellow); }
.card-header { display: flex; justify-content: space-between; border-bottom: 1px dashed #ccc; padding-bottom: 10px; margin-bottom: 15px; }
.role { font-weight: 700; color: var(--blueprint-blue); }
.author { margin-top: 15px; font-size: 0.8rem; text-align: right; color: #666; }

@media (min-width: 768px) {
    .feedback-grid { grid-template-columns: repeat(3, 1fr); }
}

/* Contact Grid */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
}
.info-module { background: var(--dark-slate); color: var(--white); padding: 40px; }
.info-module h2 { font-family: var(--font-head); font-size: 2rem; color: var(--safety-yellow); }
.data-block { margin-top: 30px; border-top: 1px solid #555; padding-top: 20px; }
.data-block p { margin-bottom: 10px; }

.tech-form .form-group { margin-bottom: 20px; }
.tech-form label { display: block; font-weight: 700; margin-bottom: 5px; font-size: 0.8rem; }
.tech-form input, .tech-form select, .tech-form textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--dark-slate);
    background: transparent;
    font-family: var(--font-mono);
}
.btn-submit {
    background: var(--dark-slate);
    color: var(--white);
    border: none;
    padding: 15px 30px;
    font-family: var(--font-head);
    font-size: 1.5rem;
    cursor: pointer;
    width: 100%;
}
.btn-submit:hover { background: var(--safety-yellow); color: var(--dark-slate); }

@media (min-width: 900px) {
    .contact-grid { grid-template-columns: 1fr 1.5fr; }
}

/* Legal */
.legal-doc {
    background: var(--white);
    padding: 40px;
    border: 1px solid var(--dark-slate);
    max-width: 800px;
    margin: 0 auto;
}
.legal-doc h3 { color: var(--blueprint-blue); margin-top: 30px; font-family: var(--font-head); font-size: 1.5rem; }

/* Footer */
.tech-footer {
    background: var(--dark-slate);
    color: var(--concrete-grey);
    padding: 50px 0 20px;
    margin-top: 80px;
    border-top: 5px solid var(--safety-yellow);
}
.footer-stack {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}
.f-brand h4 { font-family: var(--font-head); font-size: 2rem; color: var(--white); margin: 0; }
.f-links a { color: var(--safety-yellow); margin: 0 10px; }

@media (min-width: 768px) {
    .footer-stack { flex-direction: row; justify-content: space-between; }
}

/* Cookie */
.cookie-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--blueprint-blue);
    color: var(--white);
    padding: 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    z-index: 3000;
    display: none;
}
.cookie-bar.active { display: flex; }
.cookie-bar button {
    background: var(--safety-yellow);
    border: none;
    padding: 5px 15px;
    font-weight: 700;
    cursor: pointer;
}