/* ============================================
   sora.markets -- Neubrutalist Trading Arena
   ============================================ */

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

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

body {
    font-family: 'Archivo', sans-serif;
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.7;
    color: #1A0A0A;
    background-color: #F5F0E8;
    overflow-x: hidden;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3 {
    font-family: 'Archivo', sans-serif;
    font-weight: 800;
    text-transform: uppercase;
    color: #4A0A1A;
}

.section-heading {
    font-size: clamp(2.2rem, 5vw, 4.5rem);
    font-weight: 800;
    text-transform: uppercase;
    color: #4A0A1A;
    margin-bottom: 3rem;
    letter-spacing: -0.02em;
    border-bottom: 4px solid #1A0A0A;
    display: inline-block;
    padding-bottom: 0.5rem;
}

/* --- DIAGONAL SECTIONS --- */
.diagonal-section {
    position: relative;
    width: 100%;
    overflow: hidden;
}

/* ============================================
   HERO SECTION
   ============================================ */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #F5F0E8;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6vh), 0 100%);
    position: relative;
    z-index: 4;
}

/* Duotone background overlay */
.hero-duotone-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 40px,
            rgba(74, 10, 26, 0.03) 40px,
            rgba(74, 10, 26, 0.03) 80px
        ),
        radial-gradient(
            ellipse at 20% 50%,
            rgba(200, 112, 122, 0.08) 0%,
            transparent 60%
        ),
        radial-gradient(
            ellipse at 80% 30%,
            rgba(74, 10, 26, 0.06) 0%,
            transparent 50%
        );
    z-index: 0;
}

.hero-frame {
    position: relative;
    z-index: 2;
    border: 4px solid #1A0A0A;
    padding: clamp(2rem, 5vw, 5rem) clamp(2rem, 6vw, 6rem);
    background-color: #F5F0E8;
    box-shadow: 12px 12px 0 #1A0A0A;
    text-align: center;
    max-width: 90vw;
}

.hero-title {
    font-size: clamp(4rem, 10vw, 8rem);
    font-weight: 900;
    color: #4A0A1A;
    text-transform: uppercase;
    line-height: 1;
    letter-spacing: -0.03em;
    text-shadow: 4px 4px 0 rgba(26, 10, 10, 0.15);
}

.hero-dot {
    color: #C8707A;
}

.hero-tagline {
    font-size: clamp(0.9rem, 2vw, 1.3rem);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: #1A0A0A;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid #1A0A0A;
}

.nature-motif--hero {
    position: absolute;
    bottom: 2vh;
    right: 5vw;
    width: clamp(100px, 15vw, 200px);
    height: auto;
    z-index: 3;
    opacity: 0.7;
}

/* ============================================
   SECTION 2: MARKET CARDS
   ============================================ */
#market-cards {
    background-color: #E8DCC8;
    padding: clamp(6rem, 10vh, 10rem) clamp(1.5rem, 5vw, 6rem) clamp(8rem, 12vh, 14rem);
    clip-path: polygon(0 4vh, 100% 0, 100% calc(100% - 4vh), 0 100%);
    margin-top: -6vh;
    position: relative;
    z-index: 3;
}

.section-content {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.tilt-card {
    background-color: #F5F0E8;
    border: 4px solid #1A0A0A;
    padding: 2rem;
    box-shadow: 8px 8px 0 #1A0A0A;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.tilt-card:hover {
    transform: perspective(800px) rotateX(2deg) rotateY(-3deg);
    box-shadow: 12px 12px 0 #1A0A0A;
    border-color: #2A0510;
}

.card-number {
    font-size: clamp(2.5rem, 4vw, 4rem);
    font-weight: 900;
    color: #C8707A;
    line-height: 1;
    margin-bottom: 0.75rem;
    opacity: 0.6;
}

.card-title {
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    font-weight: 800;
    text-transform: uppercase;
    color: #4A0A1A;
    margin-bottom: 0.75rem;
    letter-spacing: 0.02em;
}

.card-text {
    font-size: 0.95rem;
    line-height: 1.7;
    color: #1A0A0A;
}

.nature-motif--cards {
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    width: clamp(200px, 30vw, 400px);
    height: auto;
    z-index: 1;
    opacity: 0.4;
}

/* ============================================
   SECTION 3: TUTORIAL STEPS
   ============================================ */
#tutorial {
    background-color: #F5F0E8;
    padding: clamp(8rem, 12vh, 14rem) clamp(1.5rem, 5vw, 6rem) clamp(8rem, 12vh, 14rem);
    clip-path: polygon(0 0, 100% 5vh, 100% 100%, 0 calc(100% - 5vh));
    margin-top: -6vh;
    position: relative;
    z-index: 2;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.step-card {
    background-color: #E8DCC8;
    border: 4px solid #1A0A0A;
    padding: 2rem;
    box-shadow: 8px 8px 0 #1A0A0A;
}

.step-card:hover {
    transform: perspective(800px) rotateX(2deg) rotateY(-3deg);
    box-shadow: 12px 12px 0 #1A0A0A;
    background-color: #F5F0E8;
}

.step-number {
    font-family: 'Archivo', sans-serif;
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: #C8707A;
    border: 2px solid #C8707A;
    display: inline-block;
    padding: 0.25rem 0.75rem;
    margin-bottom: 1rem;
}

.step-title {
    font-size: clamp(1.3rem, 2.2vw, 1.8rem);
    font-weight: 800;
    text-transform: uppercase;
    color: #4A0A1A;
    margin-bottom: 0.75rem;
}

.step-text {
    font-size: 0.95rem;
    line-height: 1.7;
    color: #1A0A0A;
}

.nature-motif--tutorial-left {
    position: absolute;
    bottom: 5vh;
    left: 1vw;
    width: clamp(60px, 8vw, 100px);
    height: auto;
    z-index: 1;
    opacity: 0.35;
}

.nature-motif--tutorial-right {
    position: absolute;
    top: 8vh;
    right: 1vw;
    width: clamp(60px, 8vw, 100px);
    height: auto;
    z-index: 1;
    opacity: 0.35;
}

/* ============================================
   SECTION 4: CLOSING
   ============================================ */
#closing {
    background-color: #4A0A1A;
    padding: clamp(8rem, 14vh, 16rem) clamp(1.5rem, 5vw, 6rem);
    clip-path: polygon(0 6vh, 100% 0, 100% 100%, 0 100%);
    margin-top: -6vh;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
}

.closing-content {
    text-align: center;
}

.closing-frame {
    display: inline-block;
    border: 4px solid #F5F0E8;
    padding: clamp(1.5rem, 4vw, 3rem) clamp(2rem, 6vw, 5rem);
    box-shadow: 12px 12px 0 rgba(200, 112, 122, 0.5);
    background-color: transparent;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.closing-frame:hover {
    box-shadow: 16px 16px 0 rgba(200, 112, 122, 0.7);
    transform: translate(-2px, -2px);
}

.closing-domain {
    font-family: 'Archivo', sans-serif;
    font-size: clamp(2.5rem, 7vw, 6rem);
    font-weight: 900;
    color: #F5F0E8;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    line-height: 1;
}

.closing-dot {
    color: #C8707A;
}

.closing-statement {
    font-family: 'Archivo', sans-serif;
    font-size: clamp(0.85rem, 1.5vw, 1.1rem);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: #C8707A;
    margin-top: 2rem;
}

/* ============================================
   ANIMATIONS -- IntersectionObserver reveal
   ============================================ */
.tilt-card,
.step-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.5s ease, transform 0.5s ease, box-shadow 0.3s ease;
}

.tilt-card.visible,
.step-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.tilt-card.visible:hover,
.step-card.visible:hover {
    transform: perspective(800px) rotateX(2deg) rotateY(-3deg);
}

.hero-frame {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.hero-frame.visible {
    opacity: 1;
    transform: translateY(0);
}

.closing-frame {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
}

.closing-frame.visible {
    opacity: 1;
    transform: scale(1);
}

.closing-frame.visible:hover {
    transform: scale(1) translate(-2px, -2px);
    box-shadow: 16px 16px 0 rgba(200, 112, 122, 0.7);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .cards-grid,
    .steps-grid {
        grid-template-columns: 1fr;
    }

    .hero-frame {
        margin: 0 1rem;
        padding: 2rem 1.5rem;
    }

    .nature-motif--hero {
        width: 80px;
        bottom: 1vh;
        right: 2vw;
    }

    .nature-motif--cards {
        width: 150px;
    }

    .nature-motif--tutorial-left,
    .nature-motif--tutorial-right {
        display: none;
    }

    .tilt-card:hover,
    .step-card:hover,
    .tilt-card.visible:hover,
    .step-card.visible:hover {
        transform: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: clamp(2.5rem, 12vw, 4rem);
    }

    .closing-domain {
        font-size: clamp(1.8rem, 10vw, 3rem);
    }
}