/* ============================================
   Modern Responsive Design - Nephrology Practice
   ============================================ */

:root {
    --primary-color: #0066cc;
    --primary-dark: #004a99;
    --primary-light: #e6f0ff;
    --accent-color: #ff6b35;
    --text-color: #2c3e50;
    --text-light: #5a6c7d;
    --bg-color: #ffffff;
    --bg-light: #f8f9fa;
    --border-color: #dee2e6;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html, body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

img {
    border: 0;
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

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

p {
    margin-bottom: 1.5rem;
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
}

h4 {
    font-size: 1.25rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    h2 {
        font-size: 1.5rem;
    }
    h3 {
        font-size: 1.25rem;
    }
}

/* ============================================
   Layout & Container
   ============================================ */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
}

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

#outer-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

#header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 2rem 0;
    box-shadow: var(--shadow);
}

#header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

#header-logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
}

#header-logo-subtitle {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 400;
}

.header-image {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

@media (max-width: 768px) {
    #header {
        padding: 1.5rem 0;
    }
    
    #header-logo {
        font-size: 1.4rem;
    }
    
    #header-logo-subtitle {
        font-size: 0.85rem;
    }
}

/* ============================================
   Navigation
   ============================================ */

#menu {
    background-color: var(--bg-color);
    border-bottom: 3px solid var(--primary-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

#menu ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

#menu ul li {
    display: inline-flex;
    padding: 0;
}

#menu ul li a {
    display: block;
    color: var(--text-color);
    padding: 1rem 1.5rem;
    text-decoration: none;
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
}

#menu ul li a:hover,
#menu ul li a.active {
    color: var(--primary-color);
    background-color: var(--primary-light);
    border-bottom-color: var(--primary-color);
    text-decoration: none;
}

/* Mobile Menu Toggle */
#menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

@media (max-width: 768px) {
    #menu ul {
        flex-direction: column;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-color);
        border-bottom: 3px solid var(--primary-color);
    }
    
    #menu ul.active {
        max-height: 500px;
    }
    
    #menu ul li {
        width: 100%;
    }
    
    #menu ul li a {
        border: none;
        border-left: 4px solid transparent;
        padding: 1rem 1.5rem;
        width: 100%;
    }
    
    #menu ul li a:hover,
    #menu ul li a.active {
        border-left-color: var(--primary-color);
        background-color: var(--primary-light);
        border-bottom: none;
    }
    
    #menu-toggle {
        display: inline-block;
    }
    
    #menu {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0 20px;
    }
}

/* ============================================
   Content Area
   ============================================ */

#outer-content {
    flex: 1;
    padding: 3rem 0;
    background-color: var(--bg-light);
}

#inner-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
    background: var(--bg-color);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

@media (max-width: 768px) {
    #outer-content {
        padding: 2rem 0;
    }
    
    #inner-content {
        padding: 1.5rem;
        margin: 0 15px;
    }
}

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

#footer {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 2rem;
    text-align: center;
    border-top: 3px solid var(--accent-color);
    margin-top: auto;
}

#footer a {
    color: #e6f0ff;
}

#footer a:hover {
    color: white;
    text-decoration: underline;
}

/* ============================================
   Messages
   ============================================ */

.errorMessage,
.alert-danger {
    padding: 1rem;
    border: 1px solid #f5c6cb;
    border-radius: 6px;
    background: #f8d7da;
    color: #721c24;
    margin-bottom: 2rem;
    font-weight: 500;
}

.successMessage,
.alert-success {
    padding: 1rem;
    border: 1px solid #c3e6cb;
    border-radius: 6px;
    background: #d4edda;
    color: #155724;
    margin-bottom: 2rem;
    font-weight: 500;
}

.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 2rem;
    border: 1px solid transparent;
}

/* ============================================
   Forms
   ============================================ */

form {
    margin-bottom: 2rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

input[type="text"],
input[type="email"],
input[type="phone"],
input[type="tel"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="phone"]:focus,
input[type="tel"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

textarea {
    resize: vertical;
    min-height: 150px;
}

.ktColumn {
    width: calc(50% - 1rem);
    display: inline-block;
    vertical-align: top;
}

.ktColumn:nth-child(even) {
    margin-left: 2rem;
}

@media (max-width: 768px) {
    .ktColumn {
        width: 100%;
        margin-left: 0 !important;
    }
}

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

input[type="submit"],
input[type="button"],
button,
.btn {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    text-decoration: none;
}

input[type="submit"]:hover,
input[type="button"]:hover,
button:hover,
.btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

input[type="button"]:nth-of-type(1) {
    background: var(--border-color);
    color: var(--text-color);
}

input[type="button"]:nth-of-type(1):hover {
    background: #ccc;
}

#kontaktbuttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

#kontaktbuttons input[type="button"],
#kontaktbuttons input[type="submit"] {
    flex: 1;
    padding: 1rem;
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    #kontaktbuttons {
        flex-direction: column;
    }
}

/* ============================================
   Lists & Content
   ============================================ */

ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

ul li {
    margin-bottom: 0.75rem;
    line-height: 1.8;
}

ul ul {
    margin-top: 0.75rem;
    margin-bottom: 0.75rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    border-radius: 6px;
    overflow: hidden;
}

table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

table tr:last-child td {
    border-bottom: none;
}

table tr.tdHead,
table tr:first-child {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    font-weight: 600;
}

table tr:nth-child(even) {
    background-color: var(--primary-light);
}

table tr:hover {
    background-color: #f0f7ff;
}

.kontakt table tr.tdHead td {
    padding: 1rem;
}

.kontakt table td span {
    font-weight: 600;
    color: var(--primary-color);
}

/* ============================================
   Images & Gallery
   ============================================ */

.floatLeftImage,
.floatRightImage {
    margin: 1rem;
    padding: 8px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: var(--shadow);
}

.floatLeftImage {
    float: left;
}

.floatRightImage {
    float: right;
}

@media (max-width: 768px) {
    .floatLeftImage,
    .floatRightImage {
        float: none;
        margin: 1rem auto;
        max-width: 300px;
    }
}

.floatLeftImage img,
.floatRightImage img {
    width: 100%;
    height: auto;
    cursor: pointer;
}

.alignCenter {
    text-align: center;
    clear: both;
    margin: 2rem 0;
}

.alignCenter a {
    display: inline-block;
    margin: 0.5rem;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.alignCenter a:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.alignCenter img {
    width: 150px;
    height: 150px;
    object-fit: cover;
}

.alignRight {
    text-align: right;
}

.clear {
    clear: both;
}

/* ============================================
   Maps
   ============================================ */

.profile-map {
    border-radius: 6px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

/* ============================================
   Holiday Dialog
   ============================================ */

#holiday-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.holiday-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.holiday-dialog {
    position: relative;
    background: white;
    padding: 2rem;
    border-radius: 8px;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

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

.holiday-dialog p {
    margin-bottom: 1rem;
}

.holiday-dialog p:last-child {
    margin-bottom: 0;
}

/* ============================================
   Responsive Utilities
   ============================================ */

.title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.stack {
    display: inline-block;
    min-width: 70px;
    font-weight: 600;
}

.alignCenter {
    text-align: center;
}

@media print {
    #header,
    #menu,
    #footer {
        display: none;
    }
    
    #outer-content {
        background: white;
    }
    
    #inner-content {
        box-shadow: none;
        border: none;
    }
}