/**
 * Daily7 Base Styles
 * Foundation CSS with variables and base layout for the Daily7 redesign
 * Modern, elegant design with refined spacing and typography
 */

/* CSS Variables */
:root {
    --daily7-primary: #2563eb;
    --daily7-primary-dark: #1d4ed8;
    --daily7-success: #10b981;
    --daily7-success-dark: #059669;
    --daily7-gray-50: #fafafa;
    --daily7-gray-100: #f4f4f5;
    --daily7-gray-200: #e4e4e7;
    --daily7-gray-300: #d4d4d8;
    --daily7-gray-400: #a1a1aa;
    --daily7-gray-500: #71717a;
    --daily7-gray-600: #52525b;
    --daily7-gray-700: #3f3f46;
    --daily7-gray-900: #18181b;
    --daily7-shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --daily7-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --daily7-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --daily7-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --daily7-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --daily7-radius-sm: 6px;
    --daily7-radius: 8px;
    --daily7-radius-lg: 12px;
    --daily7-radius-xl: 16px;
    --daily7-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --daily7-transition-slow: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Main container */
.daily7-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .daily7-container {
        padding: 0 16px;
    }
}

/* Base body styling for daily7 */
.daily7-page {
    background-color: #fafafa;
    min-height: 100vh;
    padding-top: 24px;
}

/* Two-column layout */
.daily7-layout {
    display: flex;
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.daily7-main-content {
    flex: 1;
    min-width: 0;
}

.daily7-sidebar {
    width: 320px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Header Card - Integrated title and navigation */
.daily7-header-card {
    max-width: 600px;
    margin: 0 auto 20px;
    background: white;
    border-radius: var(--daily7-radius-lg);
    box-shadow: var(--daily7-shadow-sm);
    border: 1px solid var(--daily7-gray-200);
    overflow: hidden;
    animation: titleFadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Title Section */
.daily7-title-section {
    text-align: center;
    padding: 24px 20px 16px;
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.02) 0%, rgba(255, 255, 255, 0) 100%);
}

.daily7-main-title {
    font-family: "Nunito Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0 0 6px 0;
    line-height: 1.1;
}

.daily7-subtitle {
    font-family: "Nunito Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--daily7-gray-500);
    margin: 0;
    letter-spacing: -0.01em;
}

@media (max-width: 1024px) {
    .daily7-layout {
        flex-direction: column;
    }

    .daily7-sidebar {
        width: 100%;
        max-width: 600px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .daily7-page {
        padding-top: 12px;
    }

    .daily7-layout {
        padding: 0 16px;
    }

    .daily7-header-card {
        margin: 0 auto 16px;
    }

    .daily7-title-section {
        padding: 20px 16px 12px;
    }

    .daily7-main-title {
        font-size: 1.75rem;
    }

    .daily7-subtitle {
        font-size: 0.8125rem;
    }
}

@media (max-width: 480px) {
    .daily7-page {
        padding-top: 8px;
    }

    .daily7-header-card {
        margin: 0 12px 12px;
    }

    .daily7-title-section {
        padding: 16px 16px 10px;
    }

    .daily7-main-title {
        font-size: 1.5rem;
    }

    .daily7-subtitle {
        font-size: 0.75rem;
    }
}

/* Challenge navigation container */
.daily7-challenge-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    max-width: 600px;
    margin: 0 auto 48px;
    padding: 0 20px;
}

.daily7-challenge-nav .btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--daily7-radius);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--daily7-transition);
    border: 1px solid var(--daily7-gray-300);
    background: white;
    color: var(--daily7-gray-700);
}

.daily7-challenge-nav .btn:hover:not(:disabled) {
    background: var(--daily7-gray-50);
    border-color: var(--daily7-gray-400);
    transform: translateY(-1px);
    box-shadow: var(--daily7-shadow-sm);
}

.daily7-challenge-nav .btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .daily7-challenge-nav {
        padding: 0 16px;
        margin-bottom: 32px;
    }

    .daily7-challenge-nav .btn {
        padding: 10px 16px;
        font-size: 0.875rem;
    }
}

/* Utility classes */
.daily7-fade-in {
    animation: fadeIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.daily7-fade-out {
    animation: fadeOut 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-8px);
    }
}

@keyframes titleFadeIn {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}