/* 🎨 RESPONSIVE IMPROVEMENTS - SESSION 7 */
/* Améliorations responsive avancées pour une UX optimale */

/* ===========================
   BREAKPOINTS & VARIABLES
   =========================== */
:root {
    /* Spacing responsive */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Font sizes responsive */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
}

/* ===========================
   CONTAINER IMPROVEMENTS
   =========================== */
.responsive-container {
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 576px) {
    .responsive-container {
        max-width: 540px;
        padding: 0 var(--spacing-lg);
    }
}

@media (min-width: 768px) {
    .responsive-container {
        max-width: 720px;
        padding: 0 var(--spacing-xl);
    }
}

@media (min-width: 992px) {
    .responsive-container {
        max-width: 960px;
    }
}

@media (min-width: 1200px) {
    .responsive-container {
        max-width: 1140px;
    }
}

@media (min-width: 1400px) {
    .responsive-container {
        max-width: 1320px;
    }
}/* ===========================
   HERO SECTION RESPONSIVE
   =========================== */
.hero-responsive {
    padding: var(--spacing-xxl) 0;
    min-height: 500px;
    display: flex;
    align-items: center;
}

@media (max-width: 768px) {
    .hero-responsive {
        padding: var(--spacing-xl) 0;
        min-height: 400px;
        text-align: center;
    }
    
    .hero-responsive .mud-text {
        font-size: var(--text-xl) !important;
    }
    
    .hero-responsive .mud-button {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    
    .hero-responsive .mud-stack-row {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero-responsive {
        padding: var(--spacing-lg) 0;
        min-height: 350px;
    }
    
    .hero-responsive .hero-title {
        font-size: var(--text-2xl) !important;
        line-height: 1.3;
    }
    
    .hero-responsive .hero-subtitle {
        font-size: var(--text-base) !important;
    }
}/* ===========================
   CARDS RESPONSIVE
   =========================== */
.responsive-card {
    height: 100%;
    transition: all 0.3s ease;
    margin-bottom: var(--spacing-md);
}

.responsive-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

@media (max-width: 768px) {
    .responsive-card {
        margin-bottom: var(--spacing-lg);
    }
    
    .responsive-card .mud-card-content {
        padding: var(--spacing-lg);
    }
    
    .responsive-card .mud-text.card-title {
        font-size: var(--text-lg) !important;
    }
}

@media (max-width: 480px) {
    .responsive-card .mud-card-content {
        padding: var(--spacing-md);
    }
    
    .responsive-card .mud-icon {
        font-size: 48px !important;
    }
}/* ===========================
   STATISTICS SECTION
   =========================== */
.stats-responsive {
    padding: var(--spacing-xl) 0;
}

.stats-item {
    text-align: center;
    padding: var(--spacing-md);
}

.stats-number {
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stats-label {
    font-size: var(--text-base);
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .stats-responsive {
        padding: var(--spacing-lg) 0;
    }
    
    .stats-item {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }
    
    .stats-number {
        font-size: var(--text-3xl);
    }
    
    .stats-label {
        font-size: var(--text-sm);
    }
}

@media (max-width: 480px) {
    .stats-number {
        font-size: var(--text-2xl);
    }
    
    .stats-item {
        margin-bottom: var(--spacing-lg);
    }
}/* ===========================
   BUTTONS RESPONSIVE
   =========================== */
.btn-responsive {
    transition: all 0.3s ease;
    border-radius: 8px;
    font-weight: 600;
    text-transform: none;
}

.btn-responsive:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

@media (max-width: 768px) {
    .btn-responsive {
        width: 100%;
        margin-bottom: var(--spacing-sm);
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .btn-responsive.size-large {
        font-size: var(--text-base);
        padding: var(--spacing-lg) var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .btn-responsive {
        font-size: var(--text-sm);
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .btn-responsive.size-large {
        font-size: var(--text-base);
        padding: var(--spacing-md) var(--spacing-lg);
    }
}/* ===========================
   NAVIGATION RESPONSIVE  
   =========================== */
.nav-responsive {
    transition: all 0.3s ease;
}

@media (max-width: 960px) {
    .nav-responsive .mud-appbar {
        padding: 0 var(--spacing-md);
    }
    
    .nav-responsive .app-title {
        font-size: var(--text-lg);
    }
}

@media (max-width: 480px) {
    .nav-responsive .mud-appbar {
        padding: 0 var(--spacing-sm);
        min-height: 56px;
    }
    
    .nav-responsive .app-title {
        font-size: var(--text-base);
    }
    
    .nav-responsive .app-logo {
        font-size: var(--text-lg);
    }
}

/* ===========================
   UTILITY CLASSES
   =========================== */
.text-center-mobile {
    text-align: left;
}

@media (max-width: 768px) {
    .text-center-mobile {
        text-align: center !important;
    }
}

.hide-mobile {
    display: block;
}

@media (max-width: 768px) {
    .hide-mobile {
        display: none !important;
    }
}

.show-mobile {
    display: none;
}

@media (max-width: 768px) {
    .show-mobile {
        display: block !important;
    }
}