:root {
    --ch-color:     #EF4444;
    --ch-color-dark:#dc2626;
    --ch-color-rgb: 239, 68, 68;
}

/* HERO  */
.otp-hero {
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: #FEF2F2;
}

.otp-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 600px 600px at 30% 40%, rgba(220, 38, 38, 0.06) 0%, transparent 70%),
        radial-gradient(ellipse 400px 400px at 80% 60%, rgba(220, 38, 38, 0.04) 0%, transparent 70%);
}

.otp-hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(220, 38, 38, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(220, 38, 38, 0.04) 1px, transparent 1px);
    background-size: 80px 80px;
    z-index: 0;
}

.otp-hero-bg::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(220, 38, 38, 0.08) 0%, rgba(220, 38, 38, 0.03) 30%, transparent 60%);
    border-radius: 50%;
    top: 50%;
    left: 30%;
    transform: translate(-50%, -50%);
    filter: blur(30px);
}

.otp-hero-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 80px 32px 50px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.otp-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(220, 38, 38, 0.08);
    border: 1px solid rgba(220, 38, 38, 0.20);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    color: #dc2626;
    margin-bottom: 24px;
}

.otp-badge-dot {
    width: 8px;
    height: 8px;
    background: #dc2626;
    border-radius: 50%;
    animation: otpPulse 2s infinite;
}

@keyframes otpPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.otp-hero-content h1 {
    font-family: 'Sora', sans-serif;
    font-size: clamp(36px, 5vw, 54px);
    font-weight: 800;
    color: #0a1628;
    line-height: 1.15;
    margin-bottom: 20px;
}

.otp-hero-desc {
    font-size: 17px;
    color: #4a5568;
    line-height: 1.7;
    max-width: 520px;
    margin-bottom: 32px;
}

.otp-hero-actions {
    display: flex;
    gap: 14px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.otp-btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--ch-color), var(--ch-color-dark));
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: 0 4px 20px rgba(var(--ch-color-rgb), 0.3);
}

.otp-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(var(--ch-color-rgb), 0.4);
    color: #fff;
}

.otp-btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: transparent;
    color: #0a1628;
    font-weight: 600;
    font-size: 15px;
    border-radius: 10px;
    border: 1px solid rgba(10, 22, 40, 0.25);
    text-decoration: none;
    transition: all 0.3s;
}

.otp-btn-secondary:hover {
    border-color: #dc2626;
    color: #dc2626;
    background: rgba(220, 38, 38, 0.05);
}

.otp-hero-stats {
    display: flex;
    gap: 40px;
}

.otp-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.otp-stat-icon {
    width: 40px;
    height: 40px;
    background: rgba(220, 38, 38, 0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #dc2626;
    margin-bottom: 4px;
}

.otp-stat-num {
    font-family: 'Sora', sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: #0a1628;
}

.otp-stat-label {
    font-size: 13px;
    color: #5b6780;
}

/* Security Verify Visual */
.otp-hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.otp-verify-mockup {
    position: relative;
    perspective: 1000px;
}

.otp-verify-card {
    width: 340px;
    background: #fff;
    border-radius: 24px;
    padding: 38px 30px 30px;
    box-shadow: 0 30px 80px rgba(10, 22, 40, 0.25), 0 0 0 1px rgba(10, 22, 40, 0.05);
    text-align: center;
    animation: otpFloat 4s ease-in-out infinite;
}

@keyframes otpFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.otp-verify-shield {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, #dc2626, #fa494a);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #fff;
    margin: 0 auto 20px;
    box-shadow: 0 10px 25px rgba(220, 38, 38, 0.35);
}

.otp-verify-title {
    font-family: 'Sora', sans-serif;
    font-size: 19px;
    font-weight: 700;
    color: #0a1628;
    margin-bottom: 8px;
}

.otp-verify-sub {
    font-size: 13px;
    color: #5b6780;
    margin-bottom: 26px;
}

.otp-verify-sub span {
    color: #0a1628;
    font-weight: 600;
}

.otp-verify-inputs {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 22px;
}

.otp-digit {
    width: 42px;
    height: 50px;
    border-radius: 10px;
    border: 2px solid #e5e9f0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Sora', sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: #0a1628;
    background: #f8f9fc;
}

.otp-digit.filled {
    border-color: #dc2626;
    background: rgba(220, 38, 38, 0.05);
}

.otp-digit.active {
    border-color: #fdc733;
    animation: otpBlink 1s infinite;
}

@keyframes otpBlink {
    0%, 100% { border-color: #fdc733; }
    50% { border-color: #e5e9f0; }
}

.otp-verify-timer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 12.5px;
    color: #5b6780;
    margin-bottom: 22px;
}

.otp-timer-num {
    color: #dc2626;
    font-weight: 700;
}

.otp-verify-btn {
    width: 100%;
    padding: 13px;
    border: none;
    border-radius: 12px;
    background: #0a1628;
    color: #fff;
    font-weight: 700;
    font-size: 14.5px;
    cursor: pointer;
    margin-bottom: 14px;
    transition: 0.3s ease;
}

.otp-verify-btn:hover {
    background: #dc2626;
}

.otp-verify-resend {
    font-size: 12.5px;
    color: #5b6780;
    margin: 0;
}

.otp-verify-resend a {
    color: #dc2626;
    font-weight: 600;
    text-decoration: none;
}

.otp-verify-badge-lock {
    position: absolute;
    top: -16px;
    right: -16px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fdc733;
    color: #0a1628;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 10px 25px rgba(253, 199, 51, 0.4);
    animation: otpFloatBadge 3s ease-in-out infinite;
    z-index: 2;
}


/* WHY SECTION */
.otp-why {
    padding: 100px 0;
    background: #fff;
}

.otp-section-header {
    margin-bottom: 60px;
}

.otp-mini-badge {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    color: #fdc733;
    background: rgba(253, 199, 51, 0.08);
    padding: 8px 18px;
    border-radius: 50px;
    margin-bottom: 25px;
    animation: otpFloatBadge 3s ease-in-out infinite;
}

@keyframes otpFloatBadge {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.otp-section-header h2 {
    font-family: 'Sora', sans-serif;
    font-size: clamp(30px, 3.5vw, 42px);
    font-weight: 800;
    color: #071c3d;
    line-height: 1.15;
    margin-bottom: 18px;
}

.otp-section-header p {
    font-size: 18px;
    color: #5b6780;
    line-height: 1.8;
    max-width: 640px;
    margin: 0 auto;
}

.otp-capabilities {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    max-width: 960px;
    margin: 0 auto;
}

.otp-cap-card {
    background: #fefce8;
    border: 1px solid rgba(253, 199, 51, 0.15);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    transition: 0.4s ease;
}

.otp-cap-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.otp-cap-icon {
    font-size: 32px;
    margin-bottom: 16px;
}

.otp-cap-card h4 {
    font-family: 'Sora', sans-serif;
    font-size: 17px;
    font-weight: 700;
    color: #071c3d;
    margin-bottom: 10px;
}

.otp-cap-card p {
    font-size: 14px;
    color: #5b6780;
    line-height: 1.6;
}


/* FEATURES  */
.otp-features {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
    background: #fefce8;
}

.otp-features::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(253, 199, 51, 0.15);
    border-radius: 50%;
    filter: blur(90px);
    top: -100px;
    left: -80px;
    z-index: 0;
}

.otp-features::after {
    content: '';
    position: absolute;
    width: 260px;
    height: 260px;
    background: rgba(253, 199, 51, 0.12);
    border-radius: 50%;
    filter: blur(90px);
    bottom: -100px;
    right: -80px;
    z-index: 0;
}

.otp-features .container {
    position: relative;
    z-index: 2;
}

.otp-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.otp-feature-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 28px;
    padding: 35px 28px;
    transition: 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

.otp-feature-card::before {
    content: "";
    position: absolute;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    top: -70px;
    right: -70px;
    transition: 0.5s;
    z-index: -1;
    opacity: 0.85;
}

.otp-feature-card:nth-child(1)::before { background: #fdc733; }
.otp-feature-card:nth-child(2)::before { background: #fa494a; }
.otp-feature-card:nth-child(3)::before { background: #15aaff; }
.otp-feature-card:nth-child(4)::before { background: #25D366; }
.otp-feature-card:nth-child(5)::before { background: #fdc733; }
.otp-feature-card:nth-child(6)::before { background: #fa494a; }

.otp-feature-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

.otp-feature-card:hover::before {
    transform: scale(1.5);
}

.otp-feature-icon {
    width: 65px;
    height: 65px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 28px;
    transition: 0.4s;
}

.otp-feature-card h4 {
    font-family: 'Sora', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: #071c3d;
    margin-bottom: 12px;
}

.otp-feature-card p {
    font-size: 15px;
    color: #5b6780;
    line-height: 1.7;
}


/* HOW IT WORKS  */
.otp-how {
    padding: 100px 0;
    background: #fff;
}

.otp-steps {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    max-width: 960px;
    margin: 0 auto;
}

.otp-step {
    flex: 1;
    text-align: center;
    padding: 0 24px;
    position: relative;
}

.otp-step-num {
    font-family: 'Sora', sans-serif;
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1;
}

.otp-step:nth-child(1) .otp-step-num {
    background: linear-gradient(135deg, #fdc733, #e5b200);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.otp-step:nth-child(3) .otp-step-num {
    background: linear-gradient(135deg, #fa494a, #d93c3d);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.otp-step:nth-child(5) .otp-step-num {
    background: linear-gradient(135deg, #25D366, #1ea855);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.otp-step-content h4 {
    font-family: 'Sora', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: #071c3d;
    margin-bottom: 10px;
}

.otp-step-content p {
    font-size: 14px;
    color: #5b6780;
    line-height: 1.7;
}

.otp-step-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #fdc733, #e5b200);
    margin-top: 32px;
    border-radius: 3px;
    flex-shrink: 0;
}


/* USE CASES */
.otp-usecases {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
    background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
}

.otp-usecases::before {
    content: '';
    position: absolute;
    width: 280px;
    height: 280px;
    background: rgba(253, 199, 51, 0.12);
    border-radius: 50%;
    filter: blur(90px);
    top: 50px;
    right: -60px;
    z-index: 0;
}

.otp-usecases .container {
    position: relative;
    z-index: 2;
}

.otp-usecase-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}

.otp-usecase-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 28px;
    padding: 35px 24px;
    text-align: center;
    transition: 0.4s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

.otp-usecase-card::before {
    content: "";
    position: absolute;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    bottom: -90px;
    left: -70px;
    transition: 0.5s;
    z-index: -1;
    opacity: 0.8;
}

.otp-usecase-card:nth-child(1)::before { background: #fdc733; }
.otp-usecase-card:nth-child(2)::before { background: #15aaff; }
.otp-usecase-card:nth-child(3)::before { background: #fa494a; }
.otp-usecase-card:nth-child(4)::before { background: #25D366; }

.otp-usecase-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

.otp-usecase-card:hover::before {
    transform: scale(1.6);
}

.otp-usecase-icon {
    width: 65px;
    height: 65px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin: 0 auto 20px;
    transition: 0.4s;
}

.otp-usecase-card:nth-child(1) .otp-usecase-icon {
    background: rgba(253, 199, 51, 0.1);
    color: #d4a500;
}

.otp-usecase-card:nth-child(2) .otp-usecase-icon {
    background: rgba(21, 170, 255, 0.1);
    color: #15aaff;
}

.otp-usecase-card:nth-child(3) .otp-usecase-icon {
    background: rgba(250, 73, 74, 0.1);
    color: #fa494a;
}

.otp-usecase-card:nth-child(4) .otp-usecase-icon {
    background: rgba(37, 211, 102, 0.1);
    color: #25D366;
}

.otp-usecase-card h4 {
    font-family: 'Sora', sans-serif;
    font-size: 17px;
    font-weight: 700;
    color: #071c3d;
    margin-bottom: 12px;
}

.otp-usecase-card p {
    font-size: 14px;
    color: #5b6780;
    line-height: 1.6;
}


/* CTA  */
.otp-cta {
    padding: 100px 0;
    background: #fff;
}

.otp-cta-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    background: linear-gradient(135deg, #1a1508 0%, #2d2510 50%, #3d3218 100%);
    border-radius: 24px;
    padding: 60px;
    overflow: hidden;
    position: relative;
}

.otp-cta-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(253, 199, 51, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.otp-cta-content {
    position: relative;
    z-index: 1;
}

.otp-cta-content .otp-mini-badge {
    background: rgba(253, 199, 51, 0.2);
    color: #fde68a;
}

.otp-cta-content h2 {
    font-family: 'Sora', sans-serif;
    font-size: clamp(26px, 3vw, 34px);
    font-weight: 700;
    color: #fff;
    margin-bottom: 14px;
}

.otp-cta-content p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 28px;
}

.otp-cta-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.otp-cta-visual {
    position: relative;
    z-index: 1;
}

.otp-cta-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 28px;
    backdrop-filter: blur(10px);
}

.otp-cta-card-top {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
}

.otp-dot-green {
    width: 10px;
    height: 10px;
    background: #fdc733;
    border-radius: 50%;
    animation: otpPulse 2s infinite;
}

.otp-cta-card-top span {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

.otp-cta-metrics {
    display: flex;
    gap: 32px;
}

.otp-cta-metric {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.otp-metric-num {
    font-family: 'Sora', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: #fff;
}

.otp-metric-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.45);
}


/* ========================= RESPONSIVE ========================= */
@media (max-width: 991px) {
    .otp-hero-inner {
        grid-template-columns: 1fr;
        padding: 120px 24px 60px;
    }

    .otp-hero-visual {
        display: none;
    }

    .otp-hero-content {
        text-align: center;
    }

    .otp-hero-badge {
        margin-left: auto;
        margin-right: auto;
    }

    .otp-hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .otp-hero-actions {
        justify-content: center;
    }

    .otp-hero-stats {
        justify-content: center;
    }

    .otp-capabilities {
        grid-template-columns: 1fr;
    }

    .otp-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .otp-usecase-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .otp-cta-wrapper {
        grid-template-columns: 1fr;
        padding: 40px 28px;
    }

    .otp-why {
        padding: 70px 0;
    }

    .otp-features {
        padding: 70px 0;
    }

    .otp-section-header h2 {
        font-size: 30px;
    }
}

@media (max-width: 767px) {
    .otp-hero-inner {
        padding: 100px 20px 40px;
    }

    .otp-hero-content h1 {
        font-size: 30px;
    }

    .otp-hero-desc {
        font-size: 15px;
    }

    .otp-hero-badge {
        font-size: 12px;
        padding: 5px 12px;
    }

    .otp-hero-stats {
        flex-wrap: wrap;
        gap: 16px;
        justify-content: center;
    }

    .otp-features-grid {
        grid-template-columns: 1fr;
    }

    .otp-usecase-grid {
        grid-template-columns: 1fr;
    }

    .otp-steps {
        flex-direction: column;
        gap: 32px;
        align-items: center;
    }

    .otp-step-line {
        width: 2px;
        height: 40px;
        margin-top: 0;
    }

    .otp-step {
        padding: 0 12px;
    }

    .otp-cta-metrics {
        flex-direction: column;
        gap: 16px;
    }

    .otp-why {
        padding: 50px 0;
    }

    .otp-features {
        padding: 50px 0;
    }

    .otp-section-header h2 {
        font-size: 26px;
    }

    .otp-section-header p {
        font-size: 15px;
    }

    .otp-cta-wrapper {
        padding: 30px 20px;
        border-radius: 16px;
    }

    .otp-feature-card {
        padding: 24px;
    }

    .otp-usecase-card {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .otp-hero-inner {
        padding: 90px 16px 32px;
    }

    .otp-hero-content h1 {
        font-size: 26px;
    }

    .otp-hero-desc {
        font-size: 14px;
    }

    .otp-hero-stats {
        gap: 12px;
    }

    .otp-stat-num {
        font-size: 20px;
    }

    .otp-stat-label {
        font-size: 11px;
    }

    .otp-stat-icon {
        width: 34px;
        height: 34px;
        font-size: 15px;
    }

    .otp-why {
        padding: 40px 0;
    }

    .otp-features {
        padding: 40px 0;
    }

    .otp-section-header h2 {
        font-size: 22px;
    }

    .otp-section-header p {
        font-size: 14px;
    }

    .otp-step-num {
        font-size: 36px;
    }

    .otp-cta-wrapper {
        padding: 24px 16px;
    }

    .otp-capabilities {
        gap: 16px;
    }

    .otp-features-grid {
        gap: 16px;
    }

    .otp-usecase-grid {
        gap: 16px;
    }
}