/* Global box-sizing fix */
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* CSS Variables for consistency */
:root {
    /* Colors - Primary Palette */
    --color-primary: #44b0ec;
    --color-primary-dark: #0A65AD;
    --color-primary-light: #31c5f4;
    --color-primary-gradient: linear-gradient(135deg, #44b0ec 0%, #2a7fba 100%);

    /* Text Colors */
    --color-text-primary: #203042;
    --color-text-secondary: #464c55;
    --color-text-muted: #777;
    --color-text-white: #ffffff;

    /* Background Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #E9EEF6;
    --color-bg-tertiary: #f8f9fa;
    --color-bg-card: #ffffff;

    /* State Colors */
    --color-error: #9d0000;
    --color-error-bg: #ffdede;
    --color-warning: #f77;
    --color-success: #28a745;
    --color-info: #2a7fba;

    /* Border & Dividers */
    --color-border: #e1e4e8;
    --color-border-hover: #d1d5da;
    --color-divider: #eaecef;

    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Typography */
    --font-primary: "plusjakarta", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-secondary: "ubuntu", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   Global Improvements
   ======================================== */

body {
    color: var(--color-text-primary);
    background: linear-gradient(to bottom, #f8f9fa 0%, var(--color-bg-secondary) 100%);
    font-family: var(--font-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Cards & Containers
   ======================================== */

.page_section {
    background: transparent;
}

.section_container {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2xl);
    margin: 0 auto;
    max-width: 1200px;
}

/* ========================================
   Typography Improvements
   ======================================== */

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xl);
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-lg);
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

/* ========================================
   Links
   ======================================== */

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-weight: 500;
}

a:hover {
    color: var(--color-primary-dark);
}

.default_cta {
    color: var(--color-primary);
    font-weight: 600;
    position: relative;
    display: inline-block;
}

.default_cta::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary-gradient);
    transition: width var(--transition-base);
}

.default_cta:hover::after {
    width: 100%;
}

/* ========================================
   Improved Form Inputs
   ======================================== */

input[type="text"],
input[type="date"],
input[type="password"],
input[type="email"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: var(--font-primary);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    outline: none;
}

select {
    margin-bottom: 1rem;
}

input[type="text"]:hover,
input[type="date"]:hover,
input[type="password"]:hover,
input[type="email"]:hover,
input[type="date"]:hover,
select:hover,
textarea:hover {
    border-color: var(--color-border-hover);
}

input[type="text"]:focus,
input[type="date"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
input[type="date"]:focus,
select:focus,
textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(68, 176, 236, 0.1);
    background-color: var(--color-bg-primary);
}

input::placeholder,
textarea::placeholder {
    color: var(--color-text-muted);
    opacity: 0.6;
}

/* ========================================
   Modern Buttons
   ======================================== */

.default_btn,
.action_btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-primary);
    color: var(--color-text-white);
    background: var(--color-primary-gradient);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    text-decoration: none;
}

.default_btn::before,
.action_btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.default_btn:hover::before,
.action_btn:hover::before {
    opacity: 1;
}

.default_btn:hover,
.action_btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.default_btn:active,
.action_btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.important_btn {
    background: linear-gradient(135deg, #f77 0%, #c55 100%);
}

.important_btn:hover {
    background: linear-gradient(135deg, #c55 0%, #a33 100%);
}

.action_disabled {
    background: #bbb;
    cursor: not-allowed;
    opacity: 0.6;
}

.action_disabled:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
}

/* ========================================
   Header Improvements
   ======================================== */

header {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-md);
    box-shadow: var(--shadow-sm);
}

.logo {
    width: 144px;
    height: 30px;
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: scale(1.05);
}

.header_auth_menu {
    color: var(--color-text-secondary);
    font-family: var(--font-secondary);
}

.header_auth_menu a {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.header_auth_menu a:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-primary);
}

/* ========================================
   Language Bar
   ======================================== */

.language_bar button {
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.language_bar button:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-primary);
}

/* ========================================
   Error & Warning Messages
   ======================================== */

.general_form_error,
.general_form_warning {
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin: var(--space-lg) 0;
    border-left: 4px solid;
    box-shadow: var(--shadow-sm);
}

.general_form_error {
    background: linear-gradient(135deg, #ffdede 0%, #ffe8e8 100%);
    border-left-color: var(--color-error);
}

.general_form_warning {
    background: linear-gradient(135deg, #fff9e6 0%, #fffbf0 100%);
    border-left-color: #f0ad4e;
}

.form_field_error_message ul li {
    background: linear-gradient(135deg, #ffdede 0%, #ffe8e8 100%);
    border: 2px solid var(--color-error);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    color: var(--color-error);
    box-shadow: var(--shadow-xs);
}

/* ========================================
   Sidebar Improvements
   ======================================== */

.app_side_menu {
    background: var(--color-bg-card);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    margin-right: var(--space-lg);
}

.sidebar_entry_selected {
    font-weight: 600;
    color: var(--color-primary);
    background-color: rgba(68, 176, 236, 0.1);
    padding: 0.5rem;
    border-radius: var(--radius-md);
}

/* ========================================
   Footer Improvements
   ======================================== */

footer {
    background: var(--color-bg-card);
    padding: var(--space-2xl) 0;
    margin-top: var(--space-3xl);
}

.footer-link {
    color: var(--color-primary);
    font-weight: 500;
    transition: all var(--transition-base);
}

.footer-link:hover {
    color: var(--color-primary-dark);
    transform: translateX(4px);
}

/* ========================================
   Responsive Improvements
   ======================================== */

@media screen and (max-width: 700px) {
    :root {
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --space-3xl: 2.5rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .section_container {
        padding: var(--space-lg);
        border-radius: var(--radius-lg);
    }

    .default_btn {
        width: 100%;
        padding: 1rem;
    }
}

/* ========================================
   Animations
   ======================================== */

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

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

/* ========================================
   Utility Classes
   ======================================== */

.text-center {
    text-align: center;
}

.text-muted {
    color: var(--color-text-muted);
}

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }