/* ============================================
   MENTAL NICHE - Blueprint & Breakthrough Design
   Brand Bible: Architectural, Workshop Aesthetic
   ============================================ */

/* === VARIABLES === */
:root {
    /* Primary Colors */
    --slate: #2C3E50;
    --slate-dark: #1a252f;
    --slate-light: #34495E;

    /* Accent Colors */
    --amber: #F39C12;
    --amber-dark: #E67E22;
    --teal: #1ABC9C;
    --teal-dark: #16A085;

    /* Backgrounds */
    --paper: #F4F6F7;
    --paper-dark: #ECF0F1;
    --white: #FFFFFF;

    /* Text */
    --text-primary: #2C3E50;
    --text-secondary: #5D6D7E;
    --text-light: #95A5A6;

    /* Typography */
    --font-display: 'Barlow Condensed', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--paper);
}

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

a {
    color: inherit;
    text-decoration: none;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.1;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.section-label {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: var(--space-sm);
}

.section-headline {
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--slate);
    margin-bottom: var(--space-md);
}

.section-subhead {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: var(--space-lg);
}

.highlight {
    color: var(--amber);
}

/* === LAYOUT === */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background-color: var(--amber);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--amber-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(243, 156, 18, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--slate);
    border: 2px solid var(--slate);
}

.btn-secondary:hover {
    background-color: var(--slate);
    color: var(--white);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

/* === NAVIGATION === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(44, 62, 80, 0.1);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-box {
    width: 24px;
    height: 24px;
    background-color: var(--slate);
    position: relative;
}

.logo-box::after {
    content: '';
    position: absolute;
    top: 4px;
    right: -4px;
    width: 8px;
    height: 8px;
    background-color: var(--amber);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--slate);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--slate);
}

.nav-cta {
    background-color: var(--amber);
    color: var(--white) !important;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
}

.nav-cta:hover {
    background-color: var(--amber-dark);
}

/* === HERO === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, var(--white) 0%, var(--paper) 100%);
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    align-items: center;
}

.hero-label {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--amber);
    margin-bottom: var(--space-sm);
}

.hero-headline {
    font-size: clamp(2.5rem, 6vw, 4rem);
    color: var(--slate);
    margin-bottom: var(--space-md);
}

.hero-subhead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* Hero Animation */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.box-animation {
    position: relative;
    width: 300px;
    height: 300px;
}

.box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 180px;
    height: 180px;
    background-color: var(--slate);
    border: 3px solid var(--slate-dark);
}

.box-crack {
    position: absolute;
    top: 20%;
    right: -3px;
    width: 40px;
    height: 60%;
    background: linear-gradient(135deg, var(--amber) 0%, var(--amber-dark) 100%);
    clip-path: polygon(0 0, 100% 10%, 100% 90%, 0 100%);
    animation: crack-pulse 2s ease-in-out infinite;
}

@keyframes crack-pulse {
    0%, 100% { opacity: 0.8; transform: translateX(0); }
    50% { opacity: 1; transform: translateX(5px); }
}

.energy-line {
    position: absolute;
    background: var(--amber);
    border-radius: 2px;
}

.line-1 {
    top: 30%;
    right: 20%;
    width: 60px;
    height: 3px;
    animation: line-shoot 1.5s ease-out infinite;
}

.line-2 {
    top: 50%;
    right: 15%;
    width: 80px;
    height: 3px;
    animation: line-shoot 1.5s ease-out infinite 0.3s;
}

.line-3 {
    top: 70%;
    right: 25%;
    width: 50px;
    height: 3px;
    animation: line-shoot 1.5s ease-out infinite 0.6s;
}

@keyframes line-shoot {
    0% { opacity: 0; transform: translateX(-20px); }
    50% { opacity: 1; }
    100% { opacity: 0; transform: translateX(30px); }
}

/* === SIGNAL SECTION === */
.signal-section {
    padding: var(--space-xl) 0;
    background-color: var(--slate);
}

.signal-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.signal-card {
    text-align: center;
    padding: var(--space-md);
}

.signal-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-sm);
    color: var(--amber);
}

.signal-icon svg {
    width: 100%;
    height: 100%;
}

.signal-text {
    color: var(--paper);
    font-size: 1.125rem;
    line-height: 1.6;
}

.signal-text strong {
    color: var(--amber);
}

.signal-bottom {
    text-align: center;
    color: var(--paper);
    font-size: 1.25rem;
}

.signal-bottom strong {
    color: var(--amber);
}

/* === DEFINITION SECTION === */
.definition-section {
    padding: var(--space-xl) 0;
    background-color: var(--white);
}

.definition-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.definition-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.definition-compare {
    margin-top: var(--space-lg);
}

.compare-item {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--paper-dark);
}

.compare-item:last-child {
    border-bottom: none;
}

.compare-label {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--amber);
    background-color: rgba(243, 156, 18, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 2px;
    margin-bottom: 0.5rem;
}

.compare-item p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Diagram */
.definition-visual {
    display: flex;
    justify-content: center;
}

.niche-diagram {
    position: relative;
    width: 100%;
    max-width: 350px;
}

.diagram-box {
    background-color: var(--slate);
    padding: var(--space-md);
    position: relative;
}

.diagram-label {
    position: absolute;
    top: -12px;
    left: var(--space-sm);
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--amber);
    background-color: var(--white);
    padding: 0 0.5rem;
}

.diagram-contents {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.diagram-contents span {
    color: var(--paper);
    font-size: 0.9375rem;
    padding: 0.5rem;
    background-color: rgba(255, 255, 255, 0.1);
    border-left: 3px solid var(--amber);
}

.diagram-pressure {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.pressure-arrow {
    flex: 1;
    height: 3px;
    background: linear-gradient(90deg, var(--amber) 0%, transparent 100%);
    position: relative;
}

.pressure-arrow::before {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: var(--amber);
}

.pressure-label {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--amber);
}

/* === SIGNS SECTION === */
.signs-section {
    padding: var(--space-xl) 0;
    background-color: var(--paper);
}

.signs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.sign-card {
    background-color: var(--white);
    padding: var(--space-lg) var(--space-md);
    border-left: 4px solid var(--amber);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.sign-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 40px rgba(44, 62, 80, 0.1);
}

.sign-number {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--paper-dark);
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.sign-title {
    font-size: 1.5rem;
    color: var(--slate);
    margin-bottom: var(--space-sm);
    text-transform: none;
}

.sign-text {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* === STAGES SECTION === */
.stages-section {
    padding: var(--space-xl) 0;
    background-color: var(--white);
}

.stages-timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
}

.stages-timeline::before {
    content: '';
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--paper-dark);
}

.stage-item {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    position: relative;
}

.stage-marker {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    background-color: var(--slate);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.stage-num {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
}

.stage-content {
    flex: 1;
    padding-bottom: var(--space-md);
}

.stage-title {
    font-size: 1.25rem;
    color: var(--slate);
    margin-bottom: 0.5rem;
    text-transform: none;
}

.stage-text {
    color: var(--text-secondary);
}

.stage-danger .stage-marker {
    background-color: var(--amber);
}

.stage-flag {
    display: inline-block;
    margin-top: 0.75rem;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--white);
    background-color: var(--amber);
    padding: 0.25rem 0.75rem;
    border-radius: 2px;
}

/* === QUIZ SECTION === */
.quiz-section {
    padding: var(--space-xl) 0;
    background-color: var(--slate);
}

.quiz-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
    background-color: var(--slate-dark);
    padding: var(--space-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.quiz-card .section-label {
    color: var(--teal);
}

.quiz-headline {
    font-size: clamp(2rem, 4vw, 2.5rem);
    color: var(--white);
    margin-bottom: var(--space-md);
}

.quiz-text {
    color: var(--paper);
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.quiz-note {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-top: var(--space-sm);
}

/* Diagnostic Animation */
.quiz-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.diagnostic-animation {
    width: 250px;
    height: 200px;
    background-color: rgba(0, 0, 0, 0.3);
    border: 2px solid var(--teal);
    position: relative;
    overflow: hidden;
}

.scan-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--teal), transparent);
    animation: scan 2s linear infinite;
}

@keyframes scan {
    0% { top: 0; }
    100% { top: 100%; }
}

.diagnostic-text {
    position: absolute;
    bottom: var(--space-sm);
    left: var(--space-sm);
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--teal);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

/* === BOTTOM CTA === */
.bottom-cta {
    padding: var(--space-xl) 0;
    background-color: var(--paper);
    text-align: center;
}

.bottom-headline {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--slate);
    margin-bottom: var(--space-md);
}

.bottom-text {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

/* === FOOTER === */
.footer {
    padding: var(--space-lg) 0 var(--space-md);
    background-color: var(--slate-dark);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 2fr;
    gap: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer .logo-text {
    color: var(--white);
}

.footer-tagline {
    color: var(--text-light);
    margin-top: 0.5rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--paper);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

.footer-disclaimer p {
    color: var(--text-light);
    font-size: 0.8125rem;
    line-height: 1.7;
}

.footer-bottom {
    padding-top: var(--space-md);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 0.8125rem;
}

/* === RESPONSIVE === */
@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-visual {
        display: none;
    }

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

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

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

    .definition-visual {
        order: -1;
    }

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

    .quiz-card {
        grid-template-columns: 1fr;
    }

    .quiz-visual {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-links {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
}

@media (max-width: 600px) {
    .nav-links a:not(.nav-cta) {
        display: none;
    }

    .hero {
        padding-top: 100px;
    }

    .btn {
        width: 100%;
    }

    .hero-cta {
        flex-direction: column;
    }
}