:root {
    --primary-color: #007AFF;
    --text-color: #1D1D1F;
    --secondary-text: #86868B;
    --background-color: #FFFFFF;
    --section-background: #F5F5F7;
    --border-radius: 12px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --border-color: #E5E5E7;
}

[data-theme="dark"] {
    --primary-color: #0A84FF;
    --text-color: #FFFFFF;
    --secondary-text: #A1A1A6;
    --background-color: #1C1C1E;
    --section-background: #2C2C2E;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --border-color: #38383A;
}

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

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.5;
    color: var(--text-color);
    background-color: var(--background-color);
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Arabic font support */
html[lang="ar"] body {
    font-family: 'Noto Sans Arabic', 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Settings Panel */
.settings-button {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 1000;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(20px);
}

.settings-button:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    border-color: var(--primary-color);
}

.settings-button:active {
    transform: scale(0.95);
}

.settings-panel {
    position: fixed;
    top: 90px;
    right: 24px;
    z-index: 999;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: 0 16px 64px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 280px;
    backdrop-filter: blur(20px);
    overflow: hidden;
}

.settings-panel.active {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.settings-content {
    padding: 24px;
}

.settings-group {
    margin-bottom: 20px;
}

.settings-group:last-child {
    margin-bottom: 0;
}

.settings-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
    font-size: 15px;
    letter-spacing: -0.01em;
}

.settings-select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--section-background);
    color: var(--text-color);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 12px center;
    background-repeat: no-repeat;
    background-size: 16px;
    padding-right: 40px;
}

.settings-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
}

.settings-select:hover {
    border-color: var(--primary-color);
    background-color: var(--background-color);
}

.settings-select option {
    background: var(--background-color);
    color: var(--text-color);
    padding: 12px;
}

/* Button-based settings options */
.settings-options {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.settings-option {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--section-background);
    color: var(--text-color);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.settings-option:hover {
    border-color: var(--primary-color);
    background: rgba(0, 122, 255, 0.08);
}

.settings-option.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.settings-option.active:hover {
    background: var(--primary-color);
    opacity: 0.9;
}

/* RTL Support */
html[dir="rtl"] .settings-button {
    left: 24px;
    right: auto;
}

html[dir="rtl"] .settings-panel {
    left: 24px;
    right: auto;
}

html[dir="rtl"] .hero-content {
    padding-left: 2rem;
    padding-right: 0;
}

html[dir="rtl"] .hero-image {
    padding-right: 2rem;
    padding-left: 0;
}

.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    flex: 1;
}

.hero-content {
    flex: 1;
    padding-right: 2rem;
}

.hero-logo {
    margin-bottom: 3rem;
}

.hero-logo img {
    height: 120px;
    width: auto;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
    border-radius: 12px;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.1;
}

.subtitle {
    font-size: 1.5rem;
    color: var(--secondary-text);
    margin-bottom: 2rem;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding-left: 2rem;
}

.hero-image img {
    width: 375px;
    height: auto;
    border-radius: 20px;
    object-fit: contain;
    mix-blend-mode: multiply;
    transition: filter 0.3s ease;
}

[data-theme="dark"] .hero-image img {
    mix-blend-mode: normal;
    filter: none;
}

.features {
    background-color: var(--section-background);
    padding: 4rem 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature {
    background: var(--background-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.app-store-button {
    margin-top: 2rem;
}

.app-store-button img {
    height: 60px;
    transition: transform 0.2s ease;
}

.app-store-button img:hover {
    transform: scale(1.05);
}

footer {
    background-color: var(--section-background);
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100px;
}

.footer-content {
    text-align: center;
    color: var(--secondary-text);
}

.footer-content p {
    margin-bottom: 0.5rem;
}

.footer-content p:last-child {
    margin-bottom: 0;
}

.footer-links {
    margin: 1rem 0;
}

.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0 0.5rem;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.built-with {
    font-weight: 500;
    color: var(--text-color);
}

@media (max-width: 768px) {
    .settings-button {
        width: 45px;
        height: 45px;
        font-size: 16px;
    }

    .settings-panel {
        right: 10px;
        left: 10px;
        max-width: calc(100vw - 20px);
    }

    html[dir="rtl"] .settings-panel {
        left: 10px;
        right: 10px;
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding: 2rem 1rem;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 2rem;
    }

    .hero-image {
        padding-left: 0;
    }

    .hero-image img {
        width: 100%;
        max-width: 375px;
    }

    .hero-logo {
        margin-bottom: 2rem;
    }

    .hero-logo img {
        height: 120px;
        width: auto;
    }

    h1 {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.25rem;
    }

    /* RTL mobile adjustments */
    html[dir="rtl"] .hero-content {
        padding-left: 0;
    }

    html[dir="rtl"] .hero-image {
        padding-right: 0;
    }
}