/* =========================================
   NIGHT CHECK - BRAND STYLE GUIDE
   ========================================= */

:root {
    /* Primary Palette */
    --c-midnight: #0A0D17;
    --c-sodium: #F0A500;
    --c-chalk: #EDE9E1;

    /* Secondary Palette */
    --c-dusk: #1A2744;
    --c-concrete: #6B6D73;
    --c-signal: #DCF0FF;

    /* Typography */
    --ff-display: 'Playfair Display', serif; /* Canela fallback */
    --ff-body: 'Inter', sans-serif; /* Suisse Int'l fallback */
    --ff-data: 'Roboto Mono', monospace; /* iA Writer Mono fallback */

    /* Spacing */
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;

    /* Layout */
    --container-max: 1200px;
    --grid-gap: 2rem;
}

/* =========================================
   GLOBAL RESET & BASE
   ========================================= */

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

body {
    background-color: var(--c-midnight);
    color: var(--c-chalk);
    font-family: var(--ff-body);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Typography Hierarchy */
h1, h2, h3, .brand .wordmark {
    font-family: var(--ff-display);
    font-weight: 400;
    color: var(--c-chalk);
    line-height: 1.1;
}

.brand .descriptor {
    font-family: var(--ff-body);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--c-concrete);
    text-transform: uppercase;
}

.section-heading {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--space-lg);
}

.large-text {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--space-md);
    color: var(--c-chalk);
}

.highlight-text {
    font-weight: 700;
    color: var(--c-sodium);
    margin-top: var(--space-md);
}

a {
    color: var(--c-sodium);
    text-decoration: none;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.8;
}

/* Data Typography */
.timestamp, .data-row, .report-id, .step-num {
    font-family: var(--ff-data);
    color: var(--c-concrete);
    font-size: 0.9rem;
}

/* Layout Utilities */
.container {
    width: 90%;
    max-width: var(--container-max);
    margin: 0 auto;
}

.section {
    padding: var(--space-xl) 0;
}

.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--grid-gap);
}

@media (min-width: 768px) {
    .grid {
        grid-template-columns: repeat(12, 1fr);
    }
    .col-6 { grid-column: span 6; }
    .col-5 { grid-column: span 5; }
    .col-7 { grid-column: span 7; }
}

.text-center { text-align: center; }
.bg-midnight { background-color: var(--c-midnight); }
.bg-dusk { background-color: var(--c-dusk); }

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-family: var(--ff-body);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--c-sodium);
    color: var(--c-midnight);
}

.btn-primary:hover {
    background-color: transparent;
    border-color: var(--c-sodium);
    color: var(--c-sodium);
}

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

/* =========================================
   COMPONENTS & SECTIONS
   ========================================= */

/* Navigation */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 100;
    background: linear-gradient(to bottom, rgba(10, 13, 23, 0.9) 0%, rgba(10, 13, 23, 0) 100%);
    backdrop-filter: blur(4px);
}

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

.brand {
    display: flex;
    flex-direction: column;
}

.brand .wordmark {
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    position: relative;
    display: inline-block;
    padding-bottom: 2px;
}

/* The subtle sightline */
.brand .wordmark::after {
    content: '';
    position: absolute;
    bottom: 45%;
    left: -10%;
    width: 120%;
    height: 1px;
    background-color: var(--c-sodium);
    opacity: 0.3;
}

.time-display {
    text-align: right;
    font-family: var(--ff-data);
}

.time-display .time-label {
    display: block;
    font-size: 0.6rem;
    color: var(--c-concrete);
    letter-spacing: 0.1em;
}

.time-display .time-value {
    font-size: 1.2rem;
    color: var(--c-chalk);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--space-xl);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
    filter: brightness(0.6) contrast(1.2) sepia(0.3) hue-rotate(-20deg); /* Mimic sodium warm/grain */
}

/* Gradient overlay for text readability */
.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, var(--c-midnight) 0%, transparent 100%);
    z-index: -1;
}

.hero-tagline {
    font-size: clamp(3rem, 6vw, 5.5rem);
    font-style: italic;
    max-width: 900px;
    margin-bottom: var(--space-md);
    position: relative;
}

.cursor {
    display: inline-block;
    color: var(--c-sodium);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-subtext {
    font-family: var(--ff-body);
    font-size: 1.2rem;
    color: var(--c-concrete);
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Problem Section */
.problem p {
    margin-bottom: 1.5rem;
    color: #b0ada6; /* slightly darker than chalk for body */
}

/* What We Do */
.image-container {
    position: relative;
}

.image-container img {
    width: 100%;
    height: auto;
    display: block;
    opacity: 0.8;
    filter: grayscale(0.2) contrast(1.1);
}

.image-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1rem;
    background: rgba(10, 13, 23, 0.85);
    font-family: var(--ff-data);
    font-size: 0.8rem;
    color: var(--c-concrete);
    border-top: 1px solid rgba(240, 165, 0, 0.3);
}

/* Service Tiers */
.tiers-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: var(--space-xl);
}

@media (min-width: 992px) {
    .tiers-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.tier-card {
    border: 1px solid var(--c-concrete);
    padding: 3rem 2rem;
    position: relative;
    background: rgba(26, 39, 68, 0.2);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.tier-card:hover {
    transform: translateY(-5px);
    border-color: rgba(240, 165, 0, 0.5);
}

.tier-card.featured {
    border-color: var(--c-sodium);
    background: rgba(26, 39, 68, 0.5);
}

.tier-name {
    font-family: var(--ff-body);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--c-chalk);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tier-desc {
    color: var(--c-concrete);
    font-size: 0.95rem;
    margin-bottom: 2rem;
    min-height: 4.5rem;
}

.tier-features {
    list-style: none;
}

.tier-features li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #b0ada6;
}

.tier-features li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--c-sodium);
}

/* Report Preview */
.report-sample {
    margin-top: 2rem;
    border: 1px solid var(--c-concrete);
    background-color: var(--c-midnight);
    padding: 2rem;
}

.report-header {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid var(--c-concrete);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.report-title, .report-id {
    font-family: var(--ff-data);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
}

.report-title { color: var(--c-chalk); }
.report-id { color: var(--c-sodium); }

.report-body .data-row {
    margin-bottom: 1rem;
    font-family: var(--ff-data);
    color: #b0ada6;
    font-size: 0.85rem;
}

.report-body .timestamp {
    color: var(--c-concrete);
    margin-right: 1rem;
}

/* Process Steps */
.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-top: var(--space-xl);
}

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

.step {
    border-top: 1px solid var(--c-concrete);
    padding-top: 1.5rem;
}

.step-num {
    color: var(--c-sodium);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.step-title {
    font-family: var(--ff-body);
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.step p {
    color: #b0ada6;
    font-size: 0.95rem;
}

/* Contact Form */
.form-container {
    max-width: 600px;
    margin: 0 auto;
}

.form-intro {
    text-align: center;
    color: var(--c-concrete);
    margin-bottom: 3rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    font-family: var(--ff-data);
    font-size: 0.8rem;
    color: var(--c-concrete);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

input, select {
    width: 100%;
    background: transparent;
    border: 1px solid var(--c-concrete);
    padding: 1rem;
    color: var(--c-chalk);
    font-family: var(--ff-body);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--c-sodium);
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B6D73' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
}

select option {
    background-color: var(--c-dusk);
    color: var(--c-chalk);
}

/* Footer */
.site-footer {
    border-top: 1px solid rgba(107, 109, 115, 0.3);
    padding: 3rem 0;
}

.flex-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

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

.brand-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
}

@media (min-width: 768px) {
    .brand-footer {
        align-items: flex-start;
    }
}

.brand-footer .wordmark-small {
    font-family: var(--ff-display);
    font-size: 1.2rem;
    color: var(--c-concrete);
}

.brand-footer .descriptor-small {
    font-family: var(--ff-data);
    font-size: 0.6rem;
    color: var(--c-concrete);
    letter-spacing: 0.1em;
}

.footer-links {
    font-family: var(--ff-data);
    font-size: 0.75rem;
    color: var(--c-concrete);
}

/* Utils */
.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Add subtle entry animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}