/* ============================================================
   monopoleai.com - Polarized Minimalism / Magnetic Field Design
   ============================================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background: #F5F5F5;
    overflow-x: hidden;
    position: relative;
}

/* --- CSS Variables (Magnetic Polarity Palette) --- */
:root {
    /* South (Left/Warm) */
    --south-primary: #C85A17;
    --south-secondary: #D97706;
    --south-tertiary: #F59E0B;
    --south-bg: #FFF8F3;
    --south-text: #5A4A42;
    --south-text-secondary: #8B7355;
    --south-glow: #E8551B;

    /* North (Right/Cool) */
    --north-primary: #1E5A96;
    --north-secondary: #0EA5E9;
    --north-tertiary: #38BDF8;
    --north-bg: #F0F9FF;
    --north-text: #1E293B;
    --north-text-secondary: #64748B;
    --north-glow: #0284C7;

    /* Neutral Center */
    --neutral-1: #F5F5F5;
    --neutral-2: #E5E7EB;

    /* Typography */
    --font-south: 'Cormorant Garamond', serif;
    --font-north: 'IBM Plex Sans', sans-serif;
    --font-center: 'Lato', sans-serif;

    /* Sizing */
    --display-size: clamp(2.2rem, 5vw, 4rem);
    --body-size: 1.1rem;
    --center-size: 1.05rem;

    /* Spring easing */
    --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* --- Central Axis Line --- */
#central-axis {
    position: fixed;
    top: 0;
    left: 50%;
    width: 1px;
    height: 100vh;
    background: linear-gradient(to bottom, var(--south-secondary), var(--neutral-2), var(--north-secondary));
    opacity: 0.3;
    z-index: 10;
    pointer-events: none;
    transform: translateX(-0.5px);
}

/* --- Field Canvas (Hero Background) --- */
#field-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    opacity: 0.5;
}

/* --- Section Base --- */
.section {
    position: relative;
    width: 100%;
    min-height: 100vh;
    overflow: hidden;
    z-index: 1;
}

.section-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    z-index: 0;
    pointer-events: none;
}

.bg-south {
    width: 45%;
    height: 100%;
    background: var(--south-bg);
}

.bg-north {
    width: 45%;
    height: 100%;
    background: var(--north-bg);
    margin-left: auto;
}

/* 10% neutral center gap between bg-south and bg-north is inherent from their widths */

/* --- Typography: South Pole (Left, Warm, Serif) --- */
.heading-south, .title-south {
    font-family: var(--font-south);
    color: var(--south-primary);
    font-weight: 700;
    font-size: var(--display-size);
    letter-spacing: 0.02em;
    line-height: 1.2;
}

.text-south, .subtitle-south {
    font-family: var(--font-south);
    color: var(--south-text);
    font-size: var(--body-size);
    letter-spacing: 0.02em;
    line-height: 1.5;
}

.subtitle-south {
    color: var(--south-text-secondary);
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

/* --- Typography: North Pole (Right, Cool, Sans-Serif) --- */
.heading-north, .title-north {
    font-family: var(--font-north);
    color: var(--north-primary);
    font-weight: 600;
    font-size: var(--display-size);
    letter-spacing: 0.03em;
    line-height: 1.2;
}

.text-north, .subtitle-north {
    font-family: var(--font-north);
    color: var(--north-text);
    font-size: var(--body-size);
    letter-spacing: 0.03em;
    line-height: 1.5;
}

.subtitle-north {
    color: var(--north-text-secondary);
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

/* --- Typography: Center / Neutral --- */
.text-center {
    font-family: var(--font-center);
    color: #777;
    font-size: var(--center-size);
    font-weight: 400;
    line-height: 1.5;
    text-align: center;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
#hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    display: flex;
    width: 100%;
    height: 100%;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-south {
    width: 45%;
    padding: 2rem 3rem 2rem 5%;
    text-align: right;
    transform: translateX(-30px);
    opacity: 0;
    transition: transform 800ms var(--spring), opacity 600ms ease;
}

.hero-south.visible {
    transform: translateX(0);
    opacity: 1;
}

.title-south {
    font-size: clamp(2.8rem, 6vw, 5rem);
}

.hero-center-distortion {
    width: 10%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.distortion-svg {
    width: 100%;
    height: 100%;
    opacity: 0.15;
}

.hero-north {
    width: 45%;
    padding: 2rem 5% 2rem 3rem;
    text-align: left;
    transform: translateX(30px);
    opacity: 0;
    transition: transform 800ms var(--spring), opacity 600ms ease;
}

.hero-north.visible {
    transform: translateX(0);
    opacity: 1;
}

.title-north {
    font-size: clamp(2.8rem, 6vw, 5rem);
}

/* --- Pole Indicators --- */
.pole-indicator {
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    z-index: 5;
}

.pole-south {
    left: 3%;
    top: 50%;
    transform: translateY(-50%);
    background: var(--south-glow);
    box-shadow: 0 0 12px var(--south-glow), 0 0 24px rgba(232, 85, 27, 0.3);
    animation: pulse-south 2.5s ease-in-out infinite;
}

.pole-north {
    right: 3%;
    top: 50%;
    transform: translateY(-50%);
    background: var(--north-glow);
    box-shadow: 0 0 12px var(--north-glow), 0 0 24px rgba(2, 132, 199, 0.3);
    animation: pulse-north 2.5s ease-in-out infinite;
}

@keyframes pulse-south {
    0%, 100% { box-shadow: 0 0 12px var(--south-glow), 0 0 24px rgba(232, 85, 27, 0.3); }
    50% { box-shadow: 0 0 20px var(--south-glow), 0 0 40px rgba(232, 85, 27, 0.5); }
}

@keyframes pulse-north {
    0%, 100% { box-shadow: 0 0 12px var(--north-glow), 0 0 24px rgba(2, 132, 199, 0.3); }
    50% { box-shadow: 0 0 20px var(--north-glow), 0 0 40px rgba(2, 132, 199, 0.5); }
}

/* ============================================================
   POLARITY CASCADE
   ============================================================ */
#cascade {
    min-height: 150vh;
    display: flex;
    flex-direction: column;
}

.cascade-block {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 50vh;
    overflow: hidden;
}

.cascade-block .section-bg {
    position: absolute;
}

.cascade-south, .cascade-north {
    position: relative;
    z-index: 2;
    padding: 3rem;
}

.cascade-south {
    width: 45%;
    text-align: right;
    padding-left: 5%;
    padding-right: 2rem;
}

.cascade-north {
    width: 45%;
    text-align: left;
    padding-right: 5%;
    padding-left: 2rem;
    margin-left: auto;
}

.cascade-minimal {
    display: flex;
    align-items: center;
    justify-content: center;
}

.cascade-axis-line {
    position: absolute;
    left: 50%;
    top: 0;
    width: 1px;
    height: 100%;
    z-index: 3;
    transform: translateX(-0.5px);
}

.cascade-even .cascade-axis-line {
    background: var(--south-secondary);
    opacity: 0.4;
}

.cascade-odd .cascade-axis-line {
    background: var(--north-secondary);
    opacity: 0.4;
}

/* Content slide-in */
.cascade-south, .cascade-north {
    opacity: 0;
    transition: transform 700ms var(--spring), opacity 500ms ease;
}

.cascade-even .cascade-south {
    transform: translateX(-60px);
}

.cascade-even .cascade-south.visible {
    transform: translateX(0);
    opacity: 1;
}

.cascade-odd .cascade-north {
    transform: translateX(60px);
}

.cascade-odd .cascade-north.visible {
    transform: translateX(0);
    opacity: 1;
}

.cascade-minimal.visible {
    opacity: 1;
}

/* Field accents (small decorative elements on minimal side) */
.field-accent {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    opacity: 0.2;
}

.accent-south {
    background: radial-gradient(circle, var(--south-tertiary) 0%, transparent 70%);
}

.accent-north {
    background: radial-gradient(circle, var(--north-tertiary) 0%, transparent 70%);
}

/* Repulsion arrows */
.repulsion-arrow {
    display: inline-block;
    font-family: var(--font-north);
    font-size: 1.4rem;
    opacity: 0.25;
    margin-top: 1rem;
}

.arrow-left {
    color: var(--south-text-secondary);
}

.arrow-right {
    color: var(--north-text-secondary);
}

/* ============================================================
   NEUTRAL CONVERGENCE
   ============================================================ */
#convergence {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.convergence-content {
    display: flex;
    width: 100%;
    align-items: center;
    position: relative;
    z-index: 2;
    padding: 4rem 0;
}

.convergence-south {
    width: 40%;
    padding: 2rem 2rem 2rem 5%;
    text-align: right;
    transition: transform 600ms var(--spring);
}

.convergence-center {
    width: 20%;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
}

.convergence-distortion {
    width: 80px;
    height: 80px;
    margin-top: 1rem;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(200, 90, 23, 0.15) 0%, rgba(30, 90, 150, 0.15) 50%, transparent 70%);
    filter: blur(2px);
    animation: distort-pulse 3s ease-in-out infinite;
}

@keyframes distort-pulse {
    0%, 100% { transform: scale(1); filter: blur(2px); }
    50% { transform: scale(1.15); filter: blur(4px); }
}

.convergence-north {
    width: 40%;
    padding: 2rem 5% 2rem 2rem;
    text-align: left;
    transition: transform 600ms var(--spring);
}

/* Convergence repulsion animation states */
.convergence-south.repelled {
    transform: translateX(-40px);
}

.convergence-north.repelled {
    transform: translateX(40px);
}

.convergence-south.attracted {
    transform: translateX(30px);
}

.convergence-north.attracted {
    transform: translateX(-30px);
}

/* ============================================================
   FIELD STRESS
   ============================================================ */
#stress {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stress-content {
    display: flex;
    width: 100%;
    align-items: center;
    position: relative;
    z-index: 2;
    padding: 4rem 0;
}

.stress-south {
    width: 35%;
    padding: 2rem 1rem 2rem 3%;
    text-align: right;
    transition: transform 700ms var(--spring);
}

.stress-void {
    width: 30%;
    min-height: 300px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.stress-north {
    width: 35%;
    padding: 2rem 3% 2rem 1rem;
    text-align: left;
    transition: transform 700ms var(--spring);
}

/* Stress pushes content outward */
.stress-south.stressed {
    transform: translateX(-60px);
}

.stress-north.stressed {
    transform: translateX(60px);
}

/* Glitch layers in the void */
.glitch-layer {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 500ms ease;
}

.glitch-1 {
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 4px,
        rgba(200, 90, 23, 0.04) 4px,
        rgba(200, 90, 23, 0.04) 5px
    );
}

.glitch-2 {
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 6px,
        rgba(30, 90, 150, 0.04) 6px,
        rgba(30, 90, 150, 0.04) 7px
    );
}

.glitch-3 {
    background: radial-gradient(
        ellipse at center,
        rgba(245, 158, 11, 0.08) 0%,
        rgba(14, 165, 233, 0.06) 30%,
        transparent 60%
    );
    filter: blur(1px);
}

.stress-void.active .glitch-1 {
    opacity: 1;
    animation: glitch-shift-1 1.5s steps(4) infinite;
}

.stress-void.active .glitch-2 {
    opacity: 1;
    animation: glitch-shift-2 2s steps(3) infinite;
}

.stress-void.active .glitch-3 {
    opacity: 1;
    animation: glitch-shift-3 2.5s ease-in-out infinite;
}

@keyframes glitch-shift-1 {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(3px); }
    50% { transform: translateX(-2px); }
    75% { transform: translateX(1px); }
}

@keyframes glitch-shift-2 {
    0%, 100% { transform: translateY(0); }
    33% { transform: translateY(-2px); }
    66% { transform: translateY(3px); }
}

@keyframes glitch-shift-3 {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 1; }
}

/* ============================================================
   RESOLUTION & POLES SEPARATED
   ============================================================ */
#resolution {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

#resolution .section-bg .bg-south {
    width: 40%;
}

#resolution .section-bg .bg-north {
    width: 40%;
}

.resolution-content {
    display: flex;
    width: 100%;
    align-items: center;
    position: relative;
    z-index: 2;
    padding: 4rem 0;
}

.resolution-south {
    width: 30%;
    padding: 2rem 1rem 2rem 2%;
    text-align: left;
}

.resolution-void {
    width: 40%;
    min-height: 200px;
    position: relative;
}

.resolution-north {
    width: 30%;
    padding: 2rem 2% 2rem 1rem;
    text-align: right;
}

.pole-south-final, .pole-north-final {
    position: relative;
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-top: 1.5rem;
}

.pole-south-final {
    background: var(--south-glow);
    box-shadow: 0 0 16px var(--south-glow);
}

.pole-north-final {
    background: var(--north-glow);
    box-shadow: 0 0 16px var(--north-glow);
    float: right;
}

/* ============================================================
   COMPASS MARKERS
   ============================================================ */
.compass-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 15;
    opacity: 0.3;
}

#compass-1 {
    top: calc(100vh - 20px);
}

#compass-2 {
    top: calc(250vh - 20px);
}

/* ============================================================
   PARTICLE ANIMATION (Canvas overlay elements)
   ============================================================ */
.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
}

/* ============================================================
   RESPONSIVE: Tablet (<=1024px)
   ============================================================ */
@media (max-width: 1024px) {
    #central-axis {
        display: none;
    }

    /* Hero stacks vertically */
    .hero-content {
        flex-direction: column;
    }

    .hero-south, .hero-north {
        width: 100%;
        text-align: center;
        padding: 2rem 5%;
    }

    .hero-south {
        transform: translateY(-20px);
    }

    .hero-south.visible {
        transform: translateY(0);
    }

    .hero-north {
        transform: translateY(20px);
    }

    .hero-north.visible {
        transform: translateY(0);
    }

    .hero-center-distortion {
        width: 100%;
        height: 40px;
    }

    /* Section backgrounds become top/bottom */
    .section-bg {
        flex-direction: column;
    }

    .bg-south {
        width: 100%;
        height: 50%;
    }

    .bg-north {
        width: 100%;
        height: 50%;
        margin-left: 0;
    }

    /* Cascade blocks stack */
    .cascade-block {
        flex-direction: column;
        min-height: auto;
        padding: 2rem 0;
    }

    .cascade-south, .cascade-north {
        width: 100%;
        text-align: center;
        padding: 2rem 5%;
    }

    .cascade-south {
        margin-left: 0;
    }

    .cascade-north {
        margin-left: 0;
    }

    .cascade-axis-line {
        left: 0;
        top: 50%;
        width: 100%;
        height: 1px;
    }

    .cascade-even .cascade-south {
        transform: translateY(-30px);
    }

    .cascade-even .cascade-south.visible {
        transform: translateY(0);
    }

    .cascade-odd .cascade-north {
        transform: translateY(30px);
    }

    .cascade-odd .cascade-north.visible {
        transform: translateY(0);
    }

    /* Convergence stacks */
    .convergence-content {
        flex-direction: column;
    }

    .convergence-south, .convergence-center, .convergence-north {
        width: 100%;
        text-align: center;
        padding: 2rem 5%;
    }

    .convergence-south.repelled {
        transform: translateY(-30px);
    }

    .convergence-north.repelled {
        transform: translateY(30px);
    }

    .convergence-south.attracted {
        transform: translateY(20px);
    }

    .convergence-north.attracted {
        transform: translateY(-20px);
    }

    /* Stress stacks */
    .stress-content {
        flex-direction: column;
    }

    .stress-south, .stress-void, .stress-north {
        width: 100%;
        text-align: center;
        padding: 2rem 5%;
    }

    .stress-south.stressed {
        transform: translateY(-40px);
    }

    .stress-north.stressed {
        transform: translateY(40px);
    }

    /* Resolution stacks */
    .resolution-content {
        flex-direction: column;
    }

    .resolution-south, .resolution-void, .resolution-north {
        width: 100%;
        text-align: center;
        padding: 2rem 5%;
    }

    .compass-marker {
        display: none;
    }
}

/* ============================================================
   RESPONSIVE: Mobile (<=480px)
   ============================================================ */
@media (max-width: 480px) {
    :root {
        --display-size: clamp(1.6rem, 7vw, 2.4rem);
        --body-size: 0.95rem;
    }

    .hero-south, .hero-north {
        padding: 1.5rem 4%;
    }

    .cascade-south, .cascade-north {
        padding: 1.5rem 4%;
    }

    .convergence-south, .convergence-center, .convergence-north {
        padding: 1.5rem 4%;
    }

    .stress-south, .stress-void, .stress-north {
        padding: 1.5rem 4%;
    }

    .resolution-south, .resolution-void, .resolution-north {
        padding: 1.5rem 4%;
    }

    .pole-indicator {
        width: 8px;
        height: 8px;
    }

    #field-canvas {
        opacity: 0.25;
    }
}