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

:root {
    --primary: #4A90E2;
    --primary-light: #EBF3FF;
    --primary-dark: #357ABD;
    --secondary: #6C5CE7;
    --accent: #FF7675;
    --bg: #F0F4F8;
    --card: #FFFFFF;
    --text: #2D3436;
    --text-light: #636E72;
    --border: #E1E8ED;
    --success: #00B894;
    --danger: #D63031;
    --warning: #FDCB6E;
    --radius: 16px;
    --shadow: 0 10px 30px rgba(0,0,0,0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    background-image: radial-gradient(circle at 10% 20%, rgba(74, 144, 226, 0.05) 0%, transparent 20%),
                      radial-gradient(circle at 90% 80%, rgba(108, 92, 231, 0.05) 0%, transparent 20%);
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 12px 0;
    box-shadow: 0 8px 32px rgba(0,0,0,0.04);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    height: 70px;
}

.navbar .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex-shrink: 0;
}

.navbar .logo {
    height: 55px;
    width: 55px;
    border-radius: 12px;
    object-fit: cover;
}

.navbar .brand span {
    font-size: 1.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.navbar .nav-links {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-left: auto;
}

.navbar .nav-links a {
    color: var(--text);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 10px 16px;
    border-radius: 12px;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.navbar .nav-links a:hover {
    background: var(--primary-light);
    color: var(--primary);
    transform: translateY(-2px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text);
    border-radius: 3px;
    transition: var(--transition);
}

/* Dropdown Styles */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
}

.dropdown-toggle::after {
    content: '▾';
    font-size: 0.8rem;
}

.dropdown-content {
    display: none;
    position: absolute;
    background-color: #fff;
    min-width: 220px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    z-index: 1002;
    border-radius: 16px;
    padding: 12px;
    top: calc(100% + 10px);
    right: 0;
    border: 1px solid rgba(0,0,0,0.05);
    animation: dropdownFade 0.3s ease;
}

@keyframes dropdownFade {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.dropdown-content a {
    color: var(--text) !important;
    padding: 12px 16px !important;
    text-decoration: none;
    display: block !important;
    border-radius: 10px !important;
    font-size: 0.95rem !important;
    margin-bottom: 4px !important;
    width: 100% !important;
    background: transparent !important;
    transition: var(--transition) !important;
}

.dropdown-content a:hover {
    background-color: var(--primary-light) !important;
    color: var(--primary) !important;
    transform: translateX(5px) !important;
}

.dropdown:hover .dropdown-content {
    display: block;
}

.btn-explore {
    background: linear-gradient(135deg, #6C5CE7 0%, #4A90E2 100%) !important;
    color: #fff !important;
    padding: 10px 20px !important;
    border-radius: 12px !important;
    font-weight: 800 !important;
    text-decoration: none !important;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px !important;
    border: none !important;
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.2) !important;
    position: relative;
    overflow: hidden;
}

.btn-explore:hover {
    transform: translateY(-3px) scale(1.02) !important;
    box-shadow: 0 8px 25px rgba(108, 92, 231, 0.4) !important;
    background: linear-gradient(135deg, #4A90E2 0%, #6C5CE7 100%) !important;
}

.btn-explore::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: rgba(255,255,255,0.1);
    transform: rotate(45deg);
    transition: 0.5s;
    opacity: 0;
}

.btn-explore:hover::after {
    left: 100%;
    opacity: 1;
}

/* Mobile responsive fixes */
@media (max-width: 768px) {
    .nav-toggle { 
        display: flex; 
    }
    
    .navbar .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 280px;
        background: #fff;
        flex-direction: column;
        padding: 80px 20px;
        margin-left: 0;
        gap: 15px;
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        transition: var(--transition);
        z-index: 1000;
        display: flex; /* Added display flex to ensure it shows when active */
    }
    
    .navbar .nav-links.active {
        right: 0;
    }

    .nav-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        backdrop-filter: blur(4px);
        z-index: 999;
        display: none;
    }

    .nav-overlay.active {
        display: block;
    }

    .navbar .nav-links a { 
        font-size: 1.1rem; 
        padding: 15px 20px; 
        border-radius: 12px; 
        width: 100%; 
        text-align: left; 
        margin-bottom: 5px; 
    }
    
    .navbar .nav-links a:hover { 
        background: var(--primary-light); 
        transform: translateX(5px); 
        color: var(--primary); 
    }

    .doubt-item {
        padding: 15px;
    }

    .doubt-info p {
        word-break: break-word;
    }
}

.btn-view-custom {
    background-color: var(--danger) !important;
    color: white !important;
    border: none !important;
    padding: 8px 16px !important;
    border-radius: 10px !important;
    font-weight: 700 !important;
    text-decoration: none !important;
    display: inline-flex !important;
    align-items: center !important;
    transition: var(--transition) !important;
    font-size: 0.85rem !important;
}

.btn-view-custom:hover {
    background-color: #b91c1c !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.2);
}

.btn-delete-custom {
    background-color: #f3f4f6 !important;
    color: #4b5563 !important;
    border: 1px solid #e5e7eb !important;
    padding: 8px 16px !important;
    border-radius: 10px !important;
    font-weight: 700 !important;
    cursor: pointer;
    transition: var(--transition) !important;
    font-size: 0.85rem !important;
}

.btn-delete-custom:hover {
    background-color: #e5e7eb !important;
    color: var(--danger) !important;
    border-color: var(--danger) !important;
}

.search-box {
    margin: 0 0 30px;
    position: relative;
    width: 100%;
}

.search-box input {
    width: 100%;
    padding: 16px 24px;
    padding-left: 54px;
    border-radius: 20px;
    border: 2px solid #E2E8F0;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    color: var(--text);
}

.search-box::before {
    content: "";
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 22px;
    height: 22px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%234A90E2' stroke-width='2.5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M21 21l-5.197-5.197m0 0A7.5 7.5 0 105.196 5.196a7.5 7.5 0 0010.607 10.607z' /%3E%3C/svg%3E");
    background-repeat: no-repeat;
    z-index: 10;
    pointer-events: none;
}

.search-box input:focus {
    border-color: var(--primary);
    box-shadow: 0 10px 25px rgba(74, 144, 226, 0.1);
    outline: none;
    transform: translateY(-2px);
    background: #fff;
}

.search-box input::placeholder {
    color: #94a3b8;
}

/* Answered Doubts Styling */
.doubt-item-container.answered {
    background: #fdfdfd;
    border-left: 5px solid var(--success);
}

.doubt-item-container.answered .doubt-info h3 {
    color: var(--text-light);
}

.doubt-item-container.answered .badge-answered {
    background: var(--success);
    color: #fff;
    box-shadow: 0 4px 10px rgba(0, 184, 148, 0.2);
}

@media (max-width: 768px) {
    .card-header-flex {
        gap: 15px;
        margin-bottom: 20px;
    }
    
    .card-header-flex div {
        width: 100%;
        display: grid !important;
        grid-template-columns: repeat(3, 1fr);
        gap: 8px !important;
    }
    
    .card-header-flex div .btn {
        padding: 10px 5px !important;
        font-size: 0.8rem !important;
        text-align: center;
        border-radius: 10px !important;
    }

    .doubt-item {
        padding: 20px;
    }

    .doubt-meta {
        margin-top: 15px;
        padding-top: 15px;
        border-top: 1px solid #f1f5f9;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }
    
    .doubt-meta .badge {
        margin-bottom: 0;
    }
    
    .doubt-info h3 {
        font-size: 1.1rem;
    }
    
    .doubt-info p {
        font-size: 0.95rem;
    }
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--card);
    padding: 25px;
    border-radius: 24px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card .number {
    font-size: 2rem;
    font-weight: 900;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-card .label {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.alert {
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-weight: 600;
}

.alert-error {
    background: #FFF5F5;
    color: var(--danger);
    border: 1px solid #FED7D7;
}

.alert-success {
    background: #F0FFF4;
    color: var(--success);
    border: 1px solid #C6F6D5;
}

.badge {
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-open { background: var(--warning); color: #855B00; }
.badge-answered { background: var(--success); color: #fff; }
.badge-secondary { background: var(--primary-light); color: var(--primary); }
.badge-success { background: var(--success); color: #fff; }

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-light);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
    color: var(--text);
}

.hint {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 5px;
}

.hero {
    text-align: center;
    padding: 80px 20px 60px;
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 15px;
    letter-spacing: -2px;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 35px;
    font-weight: 500;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 12px;
    font-weight: 700;
    letter-spacing: 0.2px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.3);
}

.btn-secondary {
    background: var(--secondary);
    color: #fff;
}

.btn-block { display: block; width: 100%; }

/* Chat Box Upgrade */
.chat-container {
    max-width: 900px;
    margin: 40px auto;
    background: #fff;
    border-radius: 32px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
    border: 1px solid rgba(0,0,0,0.05);
    overflow: hidden;
    animation: slideUp 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

.chat-header {
    background: #fff;
    padding: 24px 40px;
    border-bottom: 1px solid var(--border);
}

.chat-header-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-header-info h2 {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--success);
}

.status-dot {
    width: 10px;
    height: 10px;
    background: var(--success);
    border-radius: 50%;
    position: relative;
}

.status-dot::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(2.5); opacity: 0; }
}

.chat-messages {
    height: 550px;
    background: #F8FAFC;
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
}

.chat-msg {
    max-width: 75%;
    padding: 16px 24px;
    border-radius: 24px;
    font-size: 1.05rem;
    font-weight: 500;
    line-height: 1.5;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}

.chat-msg.bot {
    background: #fff;
    color: var(--text);
    border-bottom-left-radius: 4px;
    border: 1px solid rgba(0,0,0,0.05);
    align-self: flex-start;
}

.chat-msg.user {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    border-bottom-right-radius: 4px;
    align-self: flex-end;
    box-shadow: 0 8px 25px rgba(74, 144, 226, 0.2);
}

.chat-input-area {
    padding: 30px 40px;
    background: #fff;
    display: flex;
    gap: 15px;
    border-top: 1px solid var(--border);
}

.chat-input-area input {
    flex: 1;
    background: #F1F5F9;
    padding: 18px 28px;
    border-radius: 18px;
    font-size: 1.1rem;
    font-weight: 500;
    border: 2px solid transparent;
    transition: var(--transition);
    outline: none;
}

.chat-input-area input:focus {
    background: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(74, 144, 226, 0.1);
}

.chat-send-btn {
    background: var(--primary);
    color: #fff;
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.chat-send-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.05) rotate(-5deg);
}

/* Auth Redirect Styling */
.auth-redirect-box {
    margin: 60px auto;
    max-width: 900px;
    padding: 40px;
    background: var(--primary-light);
    border-radius: 32px;
    text-align: center;
    border: 2px dashed rgba(74, 144, 226, 0.2);
}

.auth-redirect-box p {
    font-size: 1.25rem;
    font-weight: 850;
    color: var(--primary-dark);
    margin-bottom: 25px;
}

.btn-auth-redirect {
    display: inline-block;
    padding: 14px 36px;
    background: var(--primary);
    color: #fff !important;
    border-radius: 16px;
    font-weight: 800;
    text-decoration: none !important;
    box-shadow: 0 10px 25px rgba(74, 144, 226, 0.3);
    transition: var(--transition);
    border: none;
}

.btn-auth-redirect:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(74, 144, 226, 0.4);
}

.card {
    background: var(--card);
    border-radius: 24px;
    padding: 35px;
    margin-bottom: 25px;
    border: 1px solid rgba(0,0,0,0.05);
    box-shadow: 0 10px 40px rgba(0,0,0,0.03);
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 15px 50px rgba(0,0,0,0.06);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 20px;
    border: 2px solid #F1F5F9;
    border-radius: 16px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #F8FAFC;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    background: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(74, 144, 226, 0.1);
}

.doubt-item-container {
    border: none;
    background: #fff;
    border-radius: 24px;
    margin-bottom: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.04);
}

.doubt-item {
    padding: 30px;
}

.doubt-info h3 {
    font-size: 1.3rem;
    color: var(--text);
    margin-bottom: 12px;
}

.doubt-info p {
    font-size: 1.05rem;
    line-height: 1.7;
}
.doubt-meta { display: flex; flex-direction: column; gap: 10px; align-items: flex-end; min-width: fit-content; }

.reply-box {
    background: #f8fafc;
    padding: 24px;
    margin: 0 24px 24px;
    border-radius: 18px;
    border-left: 5px solid var(--primary);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}
.reply-label {
    font-weight: 900;
    color: var(--primary-dark);
    font-size: 0.85rem;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 10px 24px;
    border-radius: 14px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}
.btn-outline:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

.btn-heyyguru {
    background: #000;
    color: #fff !important;
    padding: 10px 20px;
    border-radius: 12px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-heyyguru:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.promo-card ul {
    list-style: none;
    padding: 0;
    margin: 20px 0;
    text-align: left;
}

.promo-card ul li {
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
    font-size: 0.95rem;
    color: var(--text-light);
}

.promo-card ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.promo-goal {
    font-style: italic;
    color: var(--primary-dark);
    font-weight: 600;
    margin-top: 15px;
    font-size: 0.9rem;
}

/* Marketing Sections */
.marketing-section {
    padding: 80px 20px;
    text-align: center;
    background: #fff;
    margin: 40px 0;
    border-radius: 40px;
    box-shadow: var(--shadow);
}
.marketing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.promo-card {
    padding: 40px;
    border-radius: 30px;
    background: var(--primary-light);
    border: 2px solid rgba(74, 144, 226, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.promo-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(74, 144, 226, 0.1);
}
.promo-card.aarambh {
    background: linear-gradient(135deg, #fff5f5 0%, #fff 100%);
    border-color: #feb2b2;
}
.promo-card.learn-india {
    background: linear-gradient(135deg, #f0fff4 0%, #fff 100%);
    border-color: #9ae6b4;
}
.price-tag {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary);
    margin: 20px 0;
}
.price-tag span { font-size: 1.2rem; color: var(--text-light); }

@media (max-width: 768px) {
    .marketing-section { padding: 40px 20px; border-radius: 20px; }
    .price-tag { font-size: 2.5rem; }
}

.page-title { 
    margin-bottom: 24px; 
    font-weight: 850; 
    letter-spacing: -1px; 
    text-align: center;
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .navbar .brand { font-size: 1.3rem; }
    .navbar .logo { height: 38px; width: 38px; }
    .navbar .nav-links {
        position: fixed; top: 0; right: -100%; height: 100vh; width: 280px;
        background: #fff; flex-direction: column; padding: 80px 30px;
        box-shadow: -10px 0 30px rgba(0,0,0,0.1); transition: var(--transition); z-index: 1000; display: flex;
    }
    .navbar .nav-links.active { right: 0; }
    .nav-overlay {
        position: fixed; top: 0; left: 0; width: 100%; height: 100%;
        background: rgba(0,0,0,0.4); backdrop-filter: blur(4px); z-index: 999;
        opacity: 0; visibility: hidden; transition: var(--transition);
    }
    .nav-overlay.active { opacity: 1; visibility: visible; }
    .navbar .nav-links a { font-size: 1.1rem; padding: 15px 20px; border-radius: 12px; width: 100%; text-align: left; margin-bottom: 5px; }
    .navbar .nav-links a:hover { background: var(--primary-light); transform: translateX(5px); color: var(--primary); }
    
    .hero { padding: 50px 20px 40px; }
    .hero h1 { font-size: 2.2rem; line-height: 1.1; margin-bottom: 20px; }
    .hero p { font-size: 1rem; margin-bottom: 30px; }
    
    .chat-container { margin: 15px; border-radius: 24px; height: 500px; display: flex; flex-direction: column; }
    .chat-messages { padding: 20px 15px; }
    .chat-msg { max-width: 92%; padding: 12px 18px; font-size: 0.95rem; }
    .chat-input-area { padding: 15px; gap: 10px; }
    .chat-input-area input { padding: 12px 20px; font-size: 1rem; }
    .chat-send-btn { width: 50px; height: 50px; }
    
    .doubt-item { flex-direction: column; padding: 20px; }
    .doubt-meta { width: 100%; flex-direction: row; justify-content: space-between; align-items: center; padding-top: 20px; border-top: 1px solid var(--border); }
    
    .stats { grid-template-columns: 1fr; gap: 12px; }
    .stat-card { padding: 15px; }
    .stat-card .number { font-size: 1.5rem; }

    .card { padding: 20px 15px; border-radius: 20px; margin: 15px 0; }
    .card header, .card-header-flex { display: flex; flex-direction: column; align-items: stretch !important; gap: 15px; margin-bottom: 25px; }
    .card-header-flex .btn { width: 100%; text-align: center; justify-content: center; }
}

@media (max-width: 480px) {
    .navbar .brand span { font-size: 1.1rem; }
    .hero h1 { font-size: 1.8rem; }
    .hero-buttons { display: flex; flex-direction: column; gap: 12px; }
    .hero-buttons .btn { width: 100%; }
    .chat-messages { padding: 15px 10px; }
    .chat-msg { max-width: 95%; }
    .page-title { font-size: 1.5rem; }
    .reply-box { margin: 0 15px 15px; padding: 15px; }
}