:root {
    --primary: #415365; /* Slate Primary Corporate Color */
    --accent: #f4b01c; /* Soft Amber Gold Accent */
    --bg-light: #F4F6F9; /* Workspace Background Light Tint */
    --text-dark: #333333; /* Dark Charcoal Text for Optimal Contrast */
    --text-muted: #666666; /* Muted Text Variant */
    --card-bg: #FFFFFF; /* Pure White Card Base */
    --border-color: #E2E8F0; /* Layout Border Separators */
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}
.password{
    padding: 10px;
    border-radius:10px;
    background-color: #000000;
    color: #ffffff;
}
.passwordvalid {
    padding: 10px;
    color: greenyellow;
}
.passwordinvalid {
    padding: 10px;
    color: red;
    font-size: 200%;
}
.passwordspace {
    margin-bottom: 10px;
}
.intro {
    background-color: #415365;
    color: #ffffff;
}
/* Centered Profile Card Wrapper */
.info-card {
    background-color: var(--card-bg);
    max-width: 900px;
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid #E9ECEF;
}

/* Main split row layout wrapper */
.card-body {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    padding: 45px 45px 30px 45px;
}

/* Left Side Content Controls */
.content-panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

h1 {
    color: var(--primary);
    font-size: 2.4rem;
    margin-bottom: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    color: var(--primary);
    font-size: 1.8rem;
    margin-bottom: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

p {
    font-size: 1.05rem;
    line-height: 1.6;
    color: #4A5568;
    margin-bottom: 16px;
}

/* Highlights formatting for actionable text items */
.highlight-term {
    font-weight: 600;
    color: var(--primary);
}

/* Right Side Image Placeholder Frame Container */
.image-panel {
    display: flex;
    align-items: center;
    justify-content: center;
}

.screenshot-placeholder {
    width: 100%;
    max-width: 280px;
    aspect-ratio: 9 / 19; /* Approximates modern mobile screen dimension matrix */
    background-color: #EDF2F7;
    border: 2px dashed #CBD5E0;
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    text-align: center;
    color: var(--text-muted);
}

.placeholder-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
    opacity: 0.7;
}

.placeholder-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: #718096;
}

/* Bottom Action Footer Control Panel */
.card-footer {
    border-top: 1px solid var(--border-color);
    padding: 24px 45px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #FAFAFA;
    gap: 20px;
}

/* Standard Buttons Styling */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    text-align: center;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-prev {
    background-color: #E2E8F0;
    color: #334155;
}

    .btn-prev:hover {
        background-color: #CBD5E1;
    }

.btn-next {
    background-color: var(--primary);
    color: #FFFFFF;
}

    .btn-next:hover {
        background-color: #2D3A47;
    }

/* Custom Dropdown Navigation Select Wrapper */
.nav-dropdown-wrapper {
    flex-grow: 1;
    max-width: 260px;
}

.nav-select {
    width: 100%;
    padding: 11px 16px;
    font-size: 0.95rem;
    font-weight: 600;
    color: #334155;
    background-color: #FFFFFF;
    border: 1px solid #CBD5E0;
    border-radius: 6px;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s ease;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://w3.org' viewBox='0 0 24 24' fill='none' stroke='%234A5568' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 40px;
}

    .nav-select:focus {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(65, 83, 101, 0.15);
    }

/* ==========================================
           MOBILE RESPONSIVE BREAKPOINT MATRIX
           ========================================== */
@media screen and (max-width: 768px) {
    body {
        padding: 20px 10px;
    }

    .card-body {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 30px 20px 20px 20px;
    }

    h2 {
        font-size: 1.5rem;
        text-align: center;
        margin-bottom: 15px;
    }

    .image-panel {
        order: -1;
    }

    .screenshot-placeholder {
        max-width: 220px;
        margin: 0 auto;
    }

    .card-footer {
        padding: 20px;
        flex-direction: column;
        gap: 12px;
    }

    .nav-dropdown-wrapper {
        max-width: 100%;
        width: 100%;
        order: -1;
    }

    .button-group {
        display: flex;
        width: 100%;
        gap: 12px;
    }

    .btn {
        flex: 1;
        padding: 14px 20px;
    }
}