/* Football Analysis X - Web App Styles (Mobile/Web/Desktop Compatible) */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #00a8cc;
    --primary-light: #00d4ff;
    --secondary: #00b366;
    --accent: #ff00ff;
    --warning: #ffaa00;
    --danger: #ff0066;
    --bg-dark: #0a0a0a;
    --bg-darker: #0d0d0d;
    --bg-card: #151515;
    --text-white: #ffffff;
    --text-gray: #cccccc;
    --border: #2a2a2a;
    --hover-glow: rgba(0, 168, 204, 0.3);
}

.app-body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #000000;
    color: var(--text-white);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

.app-body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 168, 204, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 107, 0, 0.15) 0%, transparent 50%);
    z-index: 0;
    pointer-events: none;
}

.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: clamp(10px, 2vw, 20px);
    left: clamp(10px, 2vw, 20px);
    z-index: 1000;
    background: rgba(0, 0, 0, 0.9);
    border: 2px solid var(--primary-light);
    border-radius: clamp(4px, 0.8vw, 8px);
    width: clamp(40px, 6vw, 50px);
    height: clamp(40px, 6vw, 50px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: clamp(4px, 0.8vw, 6px);
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
}

.mobile-menu-toggle span {
    width: clamp(20px, 3vw, 25px);
    height: clamp(2px, 0.4vw, 3px);
    background: var(--primary-light);
    border-radius: 2px;
    transition: all 0.3s;
}

.mobile-menu-toggle:hover {
    background: rgba(0, 168, 204, 0.2);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.6);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(clamp(5px, 1vw, 7px), clamp(5px, 1vw, 7px));
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(clamp(5px, 1vw, 7px), clamp(-5px, -1vw, -7px));
}

/* Sidebar */
.sidebar {
    width: clamp(120px, 12vw, 250px);
    background: rgba(0, 0, 0, 0.9);
    border-right: clamp(1px, 0.2vw, 2px) solid rgba(0, 168, 204, 0.4);
    padding: clamp(4px, 1.2vw, 20px) 0;
    backdrop-filter: blur(15px);
    box-shadow: 
        inset -5px 0 20px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(0, 168, 204, 0.1);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: clamp(4px, 1.2vw, 20px);
    text-align: center;
    border-bottom: 1px solid rgba(0, 168, 204, 0.2);
    margin-bottom: clamp(4px, 1.2vw, 20px);
}

.logo-icon {
    font-size: clamp(20px, 3.5vw, 48px);
    margin-bottom: clamp(2px, 0.6vw, 12px);
}

.app-name {
    background: linear-gradient(135deg, #00d4ff 0%, #00a8cc 50%, #ff6b00 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: clamp(8px, 1.4vw, 18px);
    font-weight: bold;
    margin-bottom: clamp(1px, 0.4vw, 6px);
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.6));
}

.app-subtitle {
    color: var(--text-white);
    font-size: clamp(7px, 1.1vw, 14px);
    font-weight: bold;
}

.sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: clamp(1px, 0.4vw, 5px);
    padding: 0 clamp(3px, 0.8vw, 10px);
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    max-height: calc(100vh - 200px);
}

.sidebar-menu::-webkit-scrollbar {
    width: clamp(3px, 0.5vw, 6px);
}

.sidebar-menu::-webkit-scrollbar-track {
    background: var(--bg-darker);
    border-radius: 3px;
}

.sidebar-menu::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: 3px;
}

.sidebar-menu::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

.accordion-item {
    margin-bottom: clamp(2px, 0.4vw, 5px);
}

.accordion-header {
    background: transparent;
    border: none;
    border-radius: clamp(3px, 0.6vw, 8px);
    padding: clamp(4px, 1vw, 15px) clamp(5px, 1.5vw, 20px);
    color: var(--text-gray);
    text-align: left;
    cursor: pointer;
    transition: all 0.3s;
    font-size: clamp(0.5rem, 1vw, 1rem);
    border-left: clamp(1px, 0.3vw, 3px) solid transparent;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: clamp(2px, 0.7vw, 10px);
    font-family: inherit;
    width: 100%;
}

.accordion-header:hover {
    background: rgba(0, 168, 204, 0.15);
    color: var(--primary-light);
    border-left-color: var(--primary-light);
}

.accordion-header.active {
    background: rgba(0, 168, 204, 0.25);
    color: var(--primary-light);
    border-left: 3px solid var(--primary-light);
}

.accordion-icon {
    font-size: clamp(0.6rem, 1vw, 1.2rem);
    transition: transform 0.3s;
}

.accordion-header.active .accordion-icon {
    transform: rotate(90deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding-left: clamp(10px, 2vw, 25px);
}

.accordion-content.open {
    max-height: 1000px;
    transition: max-height 0.5s ease-in;
}

.accordion-submenu {
    display: flex;
    flex-direction: column;
    gap: clamp(1px, 0.3vw, 4px);
    padding: clamp(3px, 0.6vw, 8px) 0;
}

.menu-item {
    background: transparent;
    border: none;
    border-radius: clamp(3px, 0.6vw, 8px);
    padding: clamp(4px, 1vw, 15px) clamp(5px, 1.5vw, 20px);
    color: var(--text-gray);
    text-align: left;
    cursor: pointer;
    transition: all 0.3s;
    font-size: clamp(0.5rem, 1vw, 1rem);
    border-left: clamp(1px, 0.3vw, 3px) solid transparent;
    display: flex;
    align-items: center;
    gap: clamp(2px, 0.7vw, 10px);
    font-family: inherit;
}

.menu-item:hover {
    background: rgba(0, 168, 204, 0.15);
    color: var(--primary-light);
    border-left-color: var(--primary-light);
    box-shadow: 
        0 0 20px rgba(0, 212, 255, 0.3),
        inset 0 0 20px rgba(0, 168, 204, 0.1);
    transform: translateX(5px);
}

.menu-item.active {
    background: rgba(0, 168, 204, 0.25);
    color: var(--primary-light);
    border-left: 3px solid var(--primary-light);
    box-shadow: 
        0 0 30px rgba(0, 212, 255, 0.5),
        inset 0 0 30px rgba(0, 168, 204, 0.2);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.8);
}

.menu-icon {
    font-size: clamp(0.6rem, 1vw, 1.2rem);
}

.sidebar-footer {
    padding: clamp(4px, 1.2vw, 20px);
    border-top: 1px solid rgba(0, 168, 204, 0.2);
    text-align: center;
    position: sticky;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    margin-top: auto;
}

.version-label {
    color: var(--secondary);
    font-size: clamp(6px, 1vw, 12px);
    font-weight: bold;
    padding: clamp(2px, 0.6vw, 8px) clamp(5px, 1.2vw, 15px);
    background: rgba(0, 179, 102, 0.15);
    border: clamp(1px, 0.2vw, 2px) solid var(--secondary);
    border-radius: clamp(3px, 0.6vw, 8px);
    box-shadow: 
        0 0 15px rgba(0, 179, 102, 0.4),
        inset 0 0 10px rgba(0, 179, 102, 0.1);
    text-shadow: 0 0 10px rgba(0, 179, 102, 0.8);
    animation: versionGlow 2s ease-in-out infinite;
}

@keyframes versionGlow {
    0%, 100% {
        box-shadow: 
            0 0 15px rgba(0, 179, 102, 0.4),
            inset 0 0 10px rgba(0, 179, 102, 0.1);
    }
    50% {
        box-shadow: 
            0 0 25px rgba(0, 179, 102, 0.6),
            inset 0 0 15px rgba(0, 179, 102, 0.2);
    }
}

.logout-btn {
    margin-top: clamp(8px, 1.2vw, 15px);
    width: 100%;
    padding: clamp(6px, 1vw, 10px);
    background: rgba(255, 0, 102, 0.2);
    border: clamp(1px, 0.2vw, 1px) solid var(--danger);
    border-radius: clamp(4px, 0.6vw, 8px);
    color: var(--danger);
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
    font-size: clamp(0.65rem, 1vw, 0.9rem);
}

.logout-btn:hover {
    background: rgba(255, 0, 102, 0.3) !important;
    box-shadow: 0 0 15px rgba(255, 0, 102, 0.5);
    transform: scale(1.02);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* Main Content - Responsive sizing based on 24" 1920x1080p reference */
.main-content {
    flex: 1;
    padding: clamp(5px, 1.5vw, 30px);
    margin-left: clamp(120px, 12vw, 250px);
    overflow-y: auto;
    overflow-x: hidden;
    background: #000000;
    position: relative;
    z-index: 1;
    transition: margin-left 0.3s ease;
}

.page-header {
    margin-bottom: clamp(10px, 2.5vw, 30px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: clamp(10px, 2vw, 20px);
    padding-bottom: clamp(5px, 1.5vw, 15px);
    border-bottom: clamp(1px, 0.2vw, 2px) solid rgba(0, 212, 255, 0.3);
}

.page-title {
    background: linear-gradient(135deg, #00d4ff 0%, #00a8cc 50%, #ff6b00 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: clamp(1rem, 2.5vw, 2rem);
    font-weight: bold;
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.6));
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.content-area {
    background: rgba(0, 0, 0, 0.7);
    border-radius: clamp(5px, 1vw, 10px);
    padding: clamp(8px, 2.5vw, 30px);
    min-height: calc(100vh - clamp(80px, 15vw, 150px));
}

/* Loading */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: clamp(200px, 40vh, 400px);
    gap: clamp(8px, 2vw, 20px);
}

.loading-spinner {
    width: clamp(30px, 5vw, 50px);
    height: clamp(30px, 5vw, 50px);
    border: clamp(2px, 0.4vw, 4px) solid rgba(0, 168, 204, 0.2);
    border-top-color: var(--primary-light);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Cards */
.card {
    background: rgba(0, 0, 0, 0.7);
    border: clamp(1px, 0.2vw, 2px) solid rgba(0, 168, 204, 0.4);
    border-radius: clamp(5px, 1vw, 10px);
    padding: clamp(8px, 2vw, 20px);
    margin-bottom: clamp(8px, 2vw, 20px);
    box-shadow: 
        0 0 30px rgba(0, 0, 0, 0.8),
        0 0 50px rgba(0, 168, 204, 0.3),
        inset 0 0 20px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(15px);
}

.card-title {
    color: var(--primary-light);
    font-size: clamp(0.8rem, 1.5vw, 1.2rem);
    font-weight: bold;
    margin-bottom: clamp(5px, 1.5vw, 15px);
}

/* Tables */
.table-container {
    background: rgba(0, 0, 0, 0.7);
    border-radius: clamp(6px, 0.8vw, 10px);
    overflow-x: auto;
    overflow-y: visible;
    border: clamp(1px, 0.2vw, 2px) solid rgba(0, 168, 204, 0.4);
    box-shadow: 
        0 0 30px rgba(0, 0, 0, 0.8),
        0 0 50px rgba(0, 168, 204, 0.3),
        inset 0 0 20px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(15px);
    width: 100%;
    max-width: 100%;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.data-table thead {
    background: rgba(255, 107, 0, 0.2);
}

.data-table th {
    padding: clamp(5px, 1.5vw, 15px);
    text-align: left;
    background: linear-gradient(135deg, rgba(0, 168, 204, 0.3) 0%, rgba(0, 212, 255, 0.25) 100%);
    color: var(--primary-light);
    font-weight: bold;
    font-size: clamp(0.6rem, 1.2vw, 1rem);
    border-bottom: clamp(1px, 0.2vw, 2px) solid rgba(0, 212, 255, 0.5);
    text-shadow: 
        0 0 10px rgba(0, 212, 255, 0.8),
        0 0 20px rgba(0, 212, 255, 0.4);
    white-space: nowrap;
}

.data-table td {
    padding: clamp(3px, 1.2vw, 12px) clamp(5px, 1.5vw, 15px);
    border-bottom: 1px solid rgba(0, 168, 204, 0.2);
    color: #ffffff;
    background: rgba(0, 0, 0, 0.3);
    font-size: clamp(0.55rem, 1.1vw, 0.9rem);
}

.data-table tbody tr:hover {
    background: rgba(0, 168, 204, 0.2);
    box-shadow: 
        0 0 20px rgba(0, 212, 255, 0.3),
        inset 0 0 20px rgba(0, 168, 204, 0.1);
    color: var(--primary-light);
}

.data-table tbody tr:hover td {
    color: var(--primary-light);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.6);
}

/* Buttons */
.btn {
    background: linear-gradient(135deg, #ff6b00 0%, #ffaa00 100%);
    border: none;
    border-radius: clamp(4px, 0.8vw, 8px);
    padding: clamp(4px, 1.2vw, 12px) clamp(8px, 2.4vw, 24px);
    color: white;
    font-size: clamp(0.6rem, 1.2vw, 1rem);
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255, 107, 0, 0.4);
}

.btn-primary {
    background: linear-gradient(135deg, #00a8cc 0%, #00d4ff 100%);
}

.btn-primary:hover {
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.4);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Login Screen Styles */
.login-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000000;
    overflow: hidden;
}

.login-background-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 168, 204, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 107, 0, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.2) 0%, transparent 60%);
    animation: shimmer 8s ease-in-out infinite;
    z-index: 1;
}

@keyframes shimmer {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

.login-container {
    position: relative;
    z-index: 2;
    background: rgba(21, 21, 21, 0.95);
    border: clamp(1px, 0.2vw, 2px) solid var(--primary-light);
    border-radius: clamp(8px, 1.5vw, 15px);
    padding: clamp(15px, 4vw, 50px) clamp(15px, 3.5vw, 40px);
    max-width: clamp(300px, 50vw, 500px);
    width: 90%;
    box-shadow: 
        0 0 50px rgba(0, 212, 255, 0.5),
        0 0 100px rgba(0, 168, 204, 0.3),
        inset 0 0 30px rgba(0, 212, 255, 0.1);
    backdrop-filter: blur(10px);
    animation: containerGlow 3s ease-in-out infinite;
}

@keyframes containerGlow {
    0%, 100% {
        box-shadow: 
            0 0 50px rgba(0, 212, 255, 0.5),
            0 0 100px rgba(0, 168, 204, 0.3),
            inset 0 0 30px rgba(0, 212, 255, 0.1);
    }
    50% {
        box-shadow: 
            0 0 70px rgba(0, 212, 255, 0.7),
            0 0 120px rgba(0, 168, 204, 0.5),
            inset 0 0 40px rgba(0, 212, 255, 0.2);
    }
}

.login-title {
    color: var(--primary-light);
    text-align: center;
    margin-bottom: clamp(5px, 1vw, 10px);
    font-size: clamp(1rem, 2.2vw, 1.8rem);
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.8);
}

.login-subtitle {
    color: var(--text-gray);
    text-align: center;
    margin-bottom: clamp(10px, 2.5vw, 30px);
    font-size: clamp(0.7rem, 1.2vw, 1rem);
}

.login-input {
    width: 100%;
    padding: clamp(6px, 1.4vw, 14px);
    background: rgba(26, 26, 26, 0.8);
    border: clamp(1px, 0.2vw, 2px) solid var(--border);
    border-radius: clamp(4px, 0.8vw, 8px);
    color: var(--text-white);
    font-size: clamp(0.7rem, 1.2vw, 1rem);
    margin-bottom: clamp(8px, 2vw, 20px);
    box-sizing: border-box;
    transition: all 0.3s ease;
}

.login-input:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
    background: rgba(26, 26, 26, 1);
}

.login-button {
    width: 100%;
    padding: clamp(6px, 1.4vw, 14px);
    background: linear-gradient(135deg, #00a8cc 0%, #00d4ff 100%);
    border: clamp(1px, 0.2vw, 2px) solid var(--primary-light);
    border-radius: clamp(4px, 0.8vw, 8px);
    color: #000000;
    font-size: clamp(0.7rem, 1.2vw, 1rem);
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
}

.login-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.login-button:hover::before {
    left: 100%;
}

.login-button:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(0, 212, 255, 0.6);
    border-color: #00d4ff;
}

.login-button:active {
    transform: scale(0.98);
}

.login-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.login-error {
    color: var(--danger);
    text-align: center;
    margin-top: 15px;
    display: none;
    font-size: clamp(0.7rem, 1.2vw, 0.9rem);
    text-shadow: 0 0 10px rgba(255, 0, 102, 0.5);
    line-height: 1.6;
}

.login-error.show {
    display: block;
}

.login-error a {
    color: var(--primary-light);
    text-decoration: underline;
    font-weight: bold;
    transition: all 0.3s ease;
}

.login-error a:hover {
    color: #00d4ff;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.8);
}

.login-footer {
    color: var(--text-gray);
    text-align: center;
    margin-top: 20px;
    font-size: clamp(0.7rem, 1.2vw, 0.9rem);
}

.login-link {
    color: var(--primary-light);
    text-decoration: underline;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-link:hover {
    color: #00d4ff;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.8);
}

/* License Timer Styles */
.license-timer {
    display: flex;
    align-items: center;
    gap: clamp(3px, 0.8vw, 8px);
    padding: clamp(3px, 0.8vw, 8px) clamp(6px, 1.5vw, 15px);
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--primary-light);
    border-radius: clamp(4px, 0.8vw, 8px);
    color: var(--primary-light);
    font-size: clamp(0.6rem, 1.1vw, 0.9rem);
    font-weight: bold;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
    animation: timerPulse 2s ease-in-out infinite;
    flex-wrap: wrap;
}

@keyframes timerPulse {
    0%, 100% {
        box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
    }
    50% {
        box-shadow: 0 0 25px rgba(0, 212, 255, 0.5);
    }
}

.timer-icon {
    font-size: clamp(0.7rem, 1.3vw, 1.1rem);
}

.timer-text {
    font-family: 'Courier New', monospace;
}

.customer-name {
    margin-left: clamp(5px, 1vw, 15px);
    color: var(--secondary);
    font-size: clamp(0.6rem, 1vw, 0.9rem);
}

/* Responsive Design - Mobile First Approach */
@media (max-width: 1024px) {
    .main-content {
        margin-left: clamp(100px, 10vw, 200px);
    }
    
    .sidebar {
        width: clamp(100px, 10vw, 200px);
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .sidebar {
        transform: translateX(-100%);
        width: clamp(200px, 60vw, 280px);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: clamp(60px, 8vw, 80px) clamp(10px, 3vw, 20px) clamp(10px, 3vw, 20px);
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .page-title {
        font-size: clamp(1.2rem, 4vw, 1.8rem);
    }
    
    .license-timer {
        width: 100%;
        justify-content: center;
    }
    
    .data-table {
        min-width: 100%;
        font-size: clamp(0.5rem, 1vw, 0.8rem);
    }
    
    .data-table th,
    .data-table td {
        padding: clamp(4px, 1vw, 8px);
        font-size: clamp(0.5rem, 1vw, 0.8rem);
    }
    
    .login-container {
        padding: clamp(20px, 6vw, 40px) clamp(15px, 5vw, 30px);
        max-width: 90%;
    }
    
    .card {
        padding: clamp(10px, 3vw, 15px);
    }
    
    .btn {
        padding: clamp(8px, 2vw, 12px) clamp(12px, 3vw, 20px);
        font-size: clamp(0.7rem, 1.5vw, 0.9rem);
    }
}

@media (max-width: 480px) {
    .sidebar {
        width: 100%;
        max-width: 280px;
    }
    
    .main-content {
        padding: clamp(60px, 8vw, 80px) clamp(8px, 2vw, 15px) clamp(8px, 2vw, 15px);
    }
    
    .page-title {
        font-size: clamp(1rem, 5vw, 1.5rem);
    }
    
    .data-table {
        font-size: clamp(0.45rem, 0.9vw, 0.7rem);
    }
    
    .data-table th,
    .data-table td {
        padding: clamp(3px, 0.8vw, 6px);
        font-size: clamp(0.45rem, 0.9vw, 0.7rem);
    }
    
    .login-container {
        padding: clamp(15px, 5vw, 30px) clamp(12px, 4vw, 20px);
    }
    
    .card {
        padding: clamp(8px, 2.5vw, 12px);
    }
}

/* Touch-friendly adjustments */
@media (hover: none) and (pointer: coarse) {
    .menu-item {
        padding: clamp(8px, 2vw, 18px) clamp(8px, 2vw, 20px);
        min-height: clamp(40px, 6vw, 50px);
    }
    
    .btn {
        min-height: clamp(40px, 6vw, 50px);
        padding: clamp(10px, 2.5vw, 14px) clamp(16px, 4vw, 24px);
    }
    
    .login-button {
        min-height: clamp(44px, 7vw, 50px);
    }
    
    .mobile-menu-toggle {
        min-width: clamp(44px, 7vw, 50px);
        min-height: clamp(44px, 7vw, 50px);
    }
}

/* Landscape mobile adjustments */
@media (max-width: 768px) and (orientation: landscape) {
    .sidebar {
        width: clamp(180px, 30vw, 220px);
    }
    
    .main-content {
        margin-left: 0;
        padding-top: clamp(50px, 6vw, 60px);
    }
    
    .page-header {
        margin-bottom: clamp(8px, 1.5vw, 15px);
    }
}

/* Custom Modal/Notification System */
.app-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.app-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.app-modal-content {
    position: relative;
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-darker) 100%);
    border: 2px solid var(--primary);
    border-radius: clamp(8px, 1.5vw, 15px);
    box-shadow: 0 0 30px rgba(0, 168, 204, 0.5), 0 0 60px rgba(0, 0, 0, 0.8);
    width: 90%;
    max-width: clamp(300px, 50vw, 500px);
    max-height: 90vh;
    overflow-y: auto;
    animation: slideIn 0.3s ease;
    z-index: 10001;
}

.app-modal-header {
    display: flex;
    align-items: center;
    gap: clamp(8px, 1.5vw, 15px);
    padding: clamp(12px, 2vw, 20px);
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, rgba(0, 168, 204, 0.1) 0%, rgba(0, 168, 204, 0.05) 100%);
}

.app-modal-icon {
    font-size: clamp(24px, 4vw, 32px);
    line-height: 1;
}

.app-modal-title {
    flex: 1;
    color: var(--text-white);
    font-size: clamp(16px, 2.5vw, 20px);
    font-weight: 700;
    margin: 0;
}

.app-modal-close {
    background: transparent;
    border: none;
    color: var(--text-gray);
    font-size: clamp(24px, 4vw, 32px);
    cursor: pointer;
    padding: 0;
    width: clamp(30px, 5vw, 40px);
    height: clamp(30px, 5vw, 40px);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s;
}

.app-modal-close:hover {
    background: rgba(255, 0, 0, 0.2);
    color: var(--danger);
    transform: rotate(90deg);
}

.app-modal-body {
    padding: clamp(16px, 2.5vw, 24px);
    color: var(--text-gray);
    font-size: clamp(14px, 2vw, 16px);
    line-height: 1.6;
}

.app-modal-body p {
    margin: 0;
    word-wrap: break-word;
}

.app-modal-footer {
    padding: clamp(12px, 2vw, 20px);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: clamp(8px, 1.5vw, 12px);
}

.app-modal-btn {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border: none;
    color: var(--text-white);
    padding: clamp(8px, 1.5vw, 12px) clamp(20px, 3vw, 30px);
    border-radius: clamp(5px, 1vw, 8px);
    font-size: clamp(14px, 2vw, 16px);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 0 15px rgba(0, 168, 204, 0.3);
}

.app-modal-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(0, 168, 204, 0.5);
}

.app-modal-btn:active {
    transform: translateY(0);
}

/* Modal Types */
.app-modal.success .app-modal-icon {
    color: var(--secondary);
}

.app-modal.error .app-modal-icon {
    color: var(--danger);
}

.app-modal.warning .app-modal-icon {
    color: var(--warning);
}

.app-modal.info .app-modal-icon {
    color: var(--primary-light);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}