:root {
    --color-cyan: #00d1ff;
    --color-mint: #adffed;
    --color-lime: #e4ff36;
    --color-purple: #e077ff;
    --color-dark: #1a1a1a;
    --color-gray: #666;
}

/* Hero Section */
.whyopen-hero {
    background: #1a1a1a;
    padding: 140px 20px 100px;
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
}

.hero-shape.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--color-cyan);
    top: -150px;
    right: -100px;
    animation: float-shape 20s ease-in-out infinite;
}

.hero-shape.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--color-purple);
    bottom: -100px;
    left: -80px;
    animation: float-shape 15s ease-in-out infinite reverse;
}

.hero-shape.shape-3 {
    width: 200px;
    height: 200px;
    background: var(--color-mint);
    top: 40%;
    right: 25%;
    animation: float-shape 18s ease-in-out infinite;
}

@keyframes float-shape {
    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30px, -30px) rotate(120deg);
    }
    66% {
        transform: translate(-20px, 20px) rotate(240deg);
    }
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(0, 209, 255, 0.1);
    border: 2px solid var(--color-cyan);
    padding: 12px 24px;
    border-radius: 50px;
    margin-bottom: 40px;
    backdrop-filter: blur(10px);
}

.hero-badge svg {
    color: var(--color-cyan);
}

.hero-badge span {
    color: var(--color-cyan);
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.whyopen-hero h1 {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 30px;
    line-height: 1.1;
    color: white;
    background: linear-gradient(135deg, #fff 0%, var(--color-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-lead {
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    max-width: 700px;
    margin: 0 auto;
}

/* Content Section */
.content-section {
    padding: 100px 20px;
    background: white;
}

.content-container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Introduction Box */
.intro-box {
    background: linear-gradient(135deg, #f0f9ff, #e0f7fa);
    padding: 50px 60px;
    border-radius: 24px;
    display: flex;
    gap: 40px;
    align-items: flex-start;
    margin-bottom: 80px;
    border: 2px solid var(--color-cyan);
    box-shadow: 0 10px 40px rgba(0, 209, 255, 0.15);
}

.intro-icon {
    width: 100px;
    height: 100px;
    background: white;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 8px 25px rgba(0, 209, 255, 0.2);
}

.intro-icon svg {
    color: var(--color-cyan);
}

.intro-text p {
    font-size: 1.15rem;
    line-height: 1.9;
    color: var(--color-dark);
    margin-bottom: 20px;
}

.intro-text p:last-child {
    margin-bottom: 0;
}

/* Value Section */
.value-section {
    margin-bottom: 80px;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--color-dark);
    margin-bottom: 20px;
    text-align: center;
}

.section-intro {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--color-gray);
    max-width: 800px;
    margin: 0 auto 60px;
    text-align: center;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.benefit-card {
    background: white;
    padding: 35px 30px;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    border: 2px solid #f0f0f0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.benefit-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-cyan), var(--color-mint));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 50px rgba(0, 209, 255, 0.2);
    border-color: var(--color-cyan);
}

.benefit-card:hover::before {
    transform: scaleX(1);
}

.benefit-number {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-cyan), #00b8e6);
    color: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1rem;
    box-shadow: 0 4px 15px rgba(0, 209, 255, 0.3);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #f0f9ff, #e0f7fa);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.benefit-card:hover .benefit-icon {
    background: linear-gradient(135deg, var(--color-cyan), #00b8e6);
    transform: scale(1.1) rotate(5deg);
}

.benefit-icon svg {
    color: var(--color-cyan);
    transition: color 0.3s ease;
}

.benefit-card:hover .benefit-icon svg {
    color: white;
}

.benefit-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-dark);
    line-height: 1.4;
}

/* Quote Box */
.quote-box {
    background: linear-gradient(135deg, #1a1a1a, #2d2d2d);
    padding: 60px 80px;
    border-radius: 24px;
    position: relative;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
}

.quote-icon {
    position: absolute;
    top: 30px;
    left: 40px;
    color: var(--color-cyan);
    opacity: 0.3;
}

blockquote {
    font-size: 1.8rem;
    font-weight: 500;
    line-height: 1.6;
    color: white;
    margin: 0;
    position: relative;
    z-index: 1;
    font-style: italic;
}

/* Responsive */
@media (max-width: 768px) {
    .whyopen-hero h1 {
        font-size: 2.5rem;
    }

    .hero-lead {
        font-size: 1.1rem;
    }

    .content-section {
        padding: 60px 20px;
    }

    .intro-box {
        flex-direction: column;
        padding: 40px 30px;
        gap: 25px;
    }

    .intro-icon {
        width: 80px;
        height: 80px;
        margin: 0 auto;
    }

    .intro-text p {
        font-size: 1.05rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .section-intro {
        font-size: 1.05rem;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .benefit-card {
        padding: 30px 25px;
    }

    .quote-box {
        padding: 50px 30px;
    }

    .quote-icon {
        width: 40px;
        height: 40px;
        top: 20px;
        left: 20px;
    }

    blockquote {
        font-size: 1.3rem;
    }
}

/* Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.benefit-card {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.benefit-card:nth-child(1) {
    animation-delay: 0.1s;
}
.benefit-card:nth-child(2) {
    animation-delay: 0.15s;
}
.benefit-card:nth-child(3) {
    animation-delay: 0.2s;
}
.benefit-card:nth-child(4) {
    animation-delay: 0.25s;
}
.benefit-card:nth-child(5) {
    animation-delay: 0.3s;
}
.benefit-card:nth-child(6) {
    animation-delay: 0.35s;
}
.benefit-card:nth-child(7) {
    animation-delay: 0.4s;
}
.benefit-card:nth-child(8) {
    animation-delay: 0.45s;
}

@media (max-width: 768px) {
    nav {
        display: none;
        flex-direction: column;
        width: 100%;
        background: white;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        z-index: 999;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        padding: 10px 0;
    }

    nav.active {
        display: flex !important;
    }

    .nav-item {
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
    }

    .nav-link {
        padding: 14px 20px;
        width: 100%;
        display: flex;
        justify-content: space-between;
    }

    .dropdown-menu {
        position: static !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        box-shadow: none !important;
        background: #f8f9fa;
        display: none;
        padding: 0;
        margin: 0;
    }

    .nav-item.has-dropdown.active .dropdown-menu {
        display: block !important;
    }

    .dropdown-item {
        padding: 12px 30px;
        border-left: 3px solid var(--color-cyan);
        color: #333;
    }

    .dropdown-arrow {
        transition: transform 0.3s ease;
    }

    .nav-item.has-dropdown.active .dropdown-arrow {
        transform: rotate(180deg);
    }
}