/* Header */
.logo-icon {
    width: 40px;
    height: 40px;
    background: #007AFF;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.logo-icon svg {
    width: 22px;
    height: 22px;
    fill: white;
}
.header-buttons {
    display: flex;
    gap: 12px;
}
.header {
    padding: 20px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #F2F2F7;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 22px;
    font-weight: 700;
    color: #000000;
}

/* Home */
.hero-home {
    padding: 80px 24px 60px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}
.hero-home h1 {
    font-size: 36px;
    font-weight: 800;
    color: #000000;
    margin-bottom: 16px;
    line-height: 1.2;
}
.hero-home p {
    font-size: 17px;
    color: #8E8E93;
    line-height: 1.6;
    margin-bottom: 32px;
}
.hero-home-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}
@media (max-width: 576px) {
    .hero-home h1 {
        font-size: 28px;
    }
}


/* App Alert - Unified & Optimized */
.app-alert-box {
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}
.app-alert-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}
.app-alert-content {
    flex: 1;
}
.app-alert-title {
    font-size: 15px;
    font-weight: 600;
    color: #000;
    margin-bottom: 4px;
}
.app-alert-text {
    font-size: 13px;
    color: #666;
    line-height: 1.5;
}
.app-alert-box.app-success {
    background: rgba(52, 199, 89, 0.1);
    border: 1px solid rgba(52, 199, 89, 0.2);
}
.app-alert-box.app-success .app-alert-icon {
    background: #34C759;
    color: white;
}
.app-alert-box.app-info {
    background: rgba(0, 122, 255, 0.1);
    border: 1px solid rgba(0, 122, 255, 0.2);
}
.app-alert-box.app-info .app-alert-icon {
    background: #007AFF;
    color: white;
}
.app-alert-box.app-warning {
    background: rgba(255, 204, 0, 0.1);
    border: 1px solid rgba(255, 204, 0, 0.2);
}
.app-alert-box.app-warning .app-alert-icon {
    background: #FFCC00;
    color: #000;
}
.app-alert-box.app-error {
    background: rgba(255, 59, 48, 0.1);
    border: 1px solid rgba(255, 59, 48, 0.2);
}
.app-alert-box.app-error .app-alert-icon {
    background: #FF3B30;
    color: white;
}


/* Account */
.account-authentication {
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-container {
    background: white;
    max-width: 100%;
    width: 100%;
}
.app-icon-account-authentication {
    width: 70px;
    height: 70px;
    background: #007AFF;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}
.app-icon-account-authentication svg {
    width: 36px;
    height: 36px;
    fill: white;
}
.subtitle-account-form {
    color: #8E8E93;
    font-size: 15px;
    line-height: 1.4;
    margin: 0;
}
.help-text-account-form {
    text-align: center;
    margin-top: 32px;
    color: #8E8E93;
    font-size: 13px;
}
.help-text-account-form a {
    color: #007AFF;
    text-decoration: none;
    font-weight: 500;
}
@media (min-width: 576px) {
    .login-container {
        max-width: 400px;
        min-height: auto;
    }
}


/* Categories */
@media (max-width: 576px) {
    .app-categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
.app-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
}
.app-categories {
    padding: 20px 24px;
    background: white;
}
.app-categories-container {
    max-width: 1000px;
    margin: 0 auto;
}
.app-section-title {
    font-size: 28px;
    font-weight: 700;
    color: #000000;
    margin-bottom: 32px;
    text-align: center;
}
.app-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 16px;
}
.app-category-card {
    background: #F9F9F9;
    border-radius: 16px;
    padding: 24px 16px;
    text-align: center;
    transition: all 0.2s ease;
    cursor: pointer;
    border: 2px solid transparent;
}
.app-category-card:hover {
    background: #F2F2F7;
}
.app-category-card:active {
    transform: scale(0.96);
    border-color: #007AFF;
}
.app-category-icon {
    width: 56px;
    height: 56px;
    background: white;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}
.app-category-icon svg {
    width: 32px;
    height: 32px;
    fill: #007AFF;
}
.app-category-name {
    font-size: 15px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 4px;
}
.app-category-count {
    font-size: 13px;
    color: #8E8E93;
}


/* Features */
.features {
    padding: 60px 24px;
    background: #F9F9F9;
}
.section-title {
    font-size: 28px;
    font-weight: 700;
    color: #000000;
    margin-bottom: 32px;
    text-align: center;
}
.features-grid {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}
.feature-card {
    background: white;
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
}
.feature-icon
{
    width: 60px;
    height: 60px;
    background: #F2F2F7;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #000000;
    margin-bottom: 12px;
}
.feature-card p {
    font-size: 15px;
    color: #8E8E93;
    line-height: 1.6;
    margin: 0;
}
.feature-icon svg {
    width: 28px;
    height: 28px;
    fill: #007AFF;
}