/* =============================================
   20MOVE - PRE-LAUNCH PAGE
   Independent, minimal, responsive
   ============================================= */

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(180deg, #0a0a0f 0%, #0f1419 50%, #0a0a0f 100%);
    color: #fff;
    min-height: 100vh;
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

/* ========== HEADER ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 24px 40px;
    z-index: 100;
    background: linear-gradient(180deg, rgba(10, 10, 15, 0.9) 0%, transparent 100%);
}

.logo {
    height: 32px;
    width: auto;
}

/* ========== HERO ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: min(600px, 100vw);
    height: 600px;
    background: radial-gradient(circle, rgba(13, 148, 136, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 700px;
    position: relative;
    z-index: 1;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(13, 148, 136, 0.1);
    border: 1px solid rgba(13, 148, 136, 0.3);
    border-radius: 50px;
    color: #5eead4;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 32px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #0d9488;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero h1 {
    font-size: clamp(32px, 6vw, 56px);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    color: #fff;
}

.gradient-text {
    background: linear-gradient(135deg, #28ccc4, #67e8f9, #28ccc4);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.subtitle {
    font-size: clamp(16px, 2.5vw, 20px);
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ========== CTA BUTTON ========== */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 36px;
    background: linear-gradient(135deg, #0d9488 0%, #0891b2 100%);
    border: none;
    border-radius: 16px;
    color: #fff;
    font-family: inherit;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow:
        0 8px 32px rgba(13, 148, 136, 0.4),
        0 2px 8px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow:
        0 12px 40px rgba(13, 148, 136, 0.5),
        0 4px 12px rgba(0, 0, 0, 0.3);
}

.cta-button:active {
    transform: translateY(0);
}

.cta-button svg {
    transition: transform 0.3s ease;
}

.cta-button:hover svg {
    transform: translateX(4px);
}

/* ========== PROBLEM SECTION ========== */
.problem {
    padding: 80px 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.problem h2 {
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
    letter-spacing: -0.02em;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.problem-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.problem-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.problem-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #f87171;
}

.problem-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #fff;
}

.problem-item p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.5;
}

/* ========== SOLUTION SECTION ========== */
.solution {
    padding: 80px 24px;
    max-width: 700px;
    margin: 0 auto;
}

.solution h2 {
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
    letter-spacing: -0.02em;
}

.solution-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.solution-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background: rgba(13, 148, 136, 0.05);
    border: 1px solid rgba(13, 148, 136, 0.15);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.solution-item:hover {
    background: rgba(13, 148, 136, 0.08);
    border-color: rgba(13, 148, 136, 0.25);
    transform: translateX(8px);
}

.solution-number {
    min-width: 56px;
    height: 40px;
    padding: 0 12px;
    background: linear-gradient(135deg, #0d9488 0%, #0891b2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
    gap: 2px;
}

.solution-unit {
    font-size: 11px;
    font-weight: 500;
    opacity: 0.8;
    margin-top: 2px;
}

.solution-number.agent-icon {
    width: 40px;
    min-width: 40px;
    padding: 0;
}

.solution-number.agent-icon svg {
    width: 20px;
    height: 20px;
}

.solution-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
    color: #fff;
}

.solution-content p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.5;
}

/* ========== FINAL CTA ========== */
.final-cta {
    padding: 100px 24px;
    text-align: center;
    position: relative;
}

.final-cta::before {
    content: '';
    position: absolute;
    bottom: 50%;
    left: 50%;
    transform: translateX(-50%);
    width: min(500px, 100vw);
    height: 500px;
    background: radial-gradient(circle, rgba(13, 148, 136, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.final-cta h2 {
    font-size: clamp(28px, 5vw, 42px);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    position: relative;
}

.final-cta p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 32px;
    position: relative;
}

.final-cta .cta-button {
    position: relative;
}

/* ========== FOOTER ========== */
.footer {
    padding: 40px 24px;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.3);
}

/* ========== MODAL ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    padding: 24px;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: linear-gradient(180deg, #1a1a24 0%, #12121a 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 48px 40px;
    max-width: 400px;
    width: 100%;
    text-align: center;
    position: relative;
    transform: scale(0.9) translateY(20px);
    transition: all 0.3s ease;
    box-shadow:
        0 25px 80px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.05);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.05);
    border: none;
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.modal-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.2), rgba(13, 148, 136, 0.05));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #5eead4;
}

.modal h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #fff;
}

.modal p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.6;
    margin-bottom: 32px;
}

.modal-button {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 40px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    color: #fff;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    margin: 0 auto;
}

.modal-button:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.25);
}

/* ========== RESPONSIVE ========== */

/* Tablet */
@media (max-width: 768px) {
    .header {
        padding: 20px 24px;
    }

    .logo {
        height: 28px;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .badge {
        margin-bottom: 24px;
    }

    .hero h1 {
        margin-bottom: 20px;
    }

    .subtitle {
        margin-bottom: 32px;
    }

    .cta-button {
        padding: 16px 32px;
        font-size: 16px;
        border-radius: 14px;
    }

    .problem {
        padding: 60px 20px;
    }

    .problem h2 {
        margin-bottom: 36px;
    }

    .problem-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .problem-item {
        padding: 24px 20px;
        display: flex;
        align-items: center;
        text-align: left;
        gap: 16px;
    }

    .problem-icon {
        margin: 0;
        width: 48px;
        height: 48px;
        flex-shrink: 0;
    }

    .problem-item h3 {
        font-size: 16px;
        margin-bottom: 4px;
    }

    .problem-item p {
        font-size: 13px;
    }

    .solution {
        padding: 60px 20px;
    }

    .solution h2 {
        margin-bottom: 36px;
    }

    .solution-item {
        padding: 20px;
    }

    .solution-number {
        min-width: 48px;
        height: 36px;
        font-size: 14px;
        border-radius: 10px;
        padding: 0 10px;
    }

    .solution-unit {
        font-size: 9px;
    }

    .solution-number.agent-icon {
        width: 36px;
        min-width: 36px;
        padding: 0;
    }

    .solution-content h3 {
        font-size: 16px;
    }

    .solution-content p {
        font-size: 13px;
    }

    .final-cta {
        padding: 80px 20px;
    }

    .final-cta p {
        font-size: 16px;
    }

    .footer {
        padding: 32px 20px;
    }

    .modal {
        padding: 40px 24px;
        border-radius: 20px;
    }

    .modal-icon {
        width: 64px;
        height: 64px;
        border-radius: 16px;
    }

    .modal-icon svg {
        width: 36px;
        height: 36px;
    }

    .modal h3 {
        font-size: 22px;
    }

    .modal p {
        font-size: 14px;
    }

    .modal-button {
        width: auto;
        padding: 14px 32px;
        display: flex;
        margin: 0 auto;
    }
}

/* Small mobile */
@media (max-width: 480px) {
    .header {
        padding: 16px 20px;
    }

    .logo {
        height: 24px;
    }

    .hero {
        padding: 90px 16px 50px;
    }

    .badge {
        font-size: 11px;
        padding: 6px 12px;
    }

    .cta-button {
        width: 100%;
        justify-content: center;
        padding: 16px 24px;
    }

    .problem {
        padding: 50px 16px;
    }

    .solution {
        padding: 50px 16px;
    }

    .solution-item:hover {
        transform: none;
    }

    .final-cta {
        padding: 60px 16px;
    }

    .final-cta .cta-button {
        width: 100%;
        justify-content: center;
    }

    .modal {
        padding: 32px 20px;
        margin: 16px;
    }

    .modal-icon {
        width: 56px;
        height: 56px;
    }

    .modal-icon svg {
        width: 28px;
        height: 28px;
    }

    .modal h3 {
        font-size: 20px;
    }

    .modal p {
        font-size: 13px;
        margin-bottom: 24px;
    }

    .modal-button {
        width: auto;
        padding: 12px 28px;
        font-size: 14px;
        display: flex;
        margin: 0 auto;
    }
}