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

:root {
    --primary-blue: #1e3a8a;
    --secondary-blue: #3b82f6;
    --light-blue: #dbeafe;
    --accent-blue: #2563eb;
    --dark-blue: #1e40af;
    --soft-blue: #60a5fa;
    --soft-blue-light: #93c5fd;
    --soft-blue-bg: #dbeafe;
    --soft-blue-gradient: linear-gradient(135deg, #60a5fa 0%, #3b82f6 50%, #2563eb 100%);
    --white: #ffffff;
    --text-dark: #0f172a;
    --text-gray: #64748b;
    --gradient-primary: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #3b82f6 100%);
    --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);
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    position: relative;
}

/* Fullscreen Background */
.fullscreen-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    z-index: 1;
}

.left-banner {
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.banner-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* Main Container */
.main-container {
    position: relative;
    z-index: 3;
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px 200px;
    overflow: hidden;
}

/* Content Area */
.content-area {
    position: relative;
    z-index: 4;
    max-width: 900px;
    width: 100%;
    background: transparent;
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 20px 35px;
    box-shadow: none;
    border: none;
    text-align: center;
}

.logo-section {
    margin-bottom: 8px;
}

.logo-image {
    max-width: 100%;
    height: auto;
    max-height: 120px;
    object-fit: contain;
}

.announcement-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    background: rgba(30, 58, 138, 0.1);
    border: 1px solid rgba(30, 58, 138, 0.2);
    border-radius: 50px;
    font-size: 10px;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 8px;
}

.main-title {
    font-size: clamp(16px, 2.2vw, 22px);
    font-weight: 800;
    line-height: 1.2;
    color: var(--primary-blue);
    margin-bottom: 8px;
}

.greeting-text {
    margin-bottom: 6px;
}

.greeting-text p {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dark);
}

.info-text {
    margin-bottom: 10px;
}

.info-text p {
    font-size: 12px;
    color: var(--text-dark);
    margin-bottom: 6px;
    line-height: 1.5;
}

.info-text strong {
    color: var(--primary-blue);
    font-weight: 700;
}

.info-box {
    background: linear-gradient(135deg, rgba(219, 234, 254, 0.6) 0%, rgba(239, 246, 255, 0.6) 100%);
    border-left: 4px solid var(--accent-blue);
    border-radius: 12px;
    padding: 10px 15px;
    margin: 8px 0;
    text-align: left;
}

.info-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
}

.info-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: 5px;
    color: var(--accent-blue);
    box-shadow: var(--shadow-lg);
    flex-shrink: 0;
}

.info-header h3 {
    font-size: 11px;
    font-weight: 700;
    color: var(--primary-blue);
    margin: 0;
    text-shadow: 0 1px 3px rgba(255, 255, 255, 0.8);
}

.info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.info-list li {
    font-size: 11px;
    color: var(--text-dark);
    padding: 4px 0;
    padding-left: 18px;
    position: relative;
    line-height: 1.4;
    text-shadow: 0 1px 3px rgba(255, 255, 255, 0.8);
}

.info-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: bold;
    font-size: 14px;
}

.links-intro {
    margin: 8px 0;
}

.links-intro p {
    font-size: 11px;
    color: var(--text-dark);
    line-height: 1.5;
}

/* Side Buttons */
.button-left-container {
    position: fixed;
    top: 50%;
    left: 40px;
    transform: translateY(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.button-right-container {
    position: fixed;
    top: 50%;
    right: 40px;
    transform: translateY(-50%);
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.side-button {
    display: block;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pdf-button {
    background: #60a5fa;
    color: var(--white);
    border-radius: 8px;
    padding: 20px 24px;
    box-shadow: var(--shadow-xl);
    border: 2px solid rgba(255, 255, 255, 0.3);
    min-width: 140px;
}

.pdf-button:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 255, 255, 0.5);
    opacity: 0.9;
    background: #3b82f6;
}

.right-button {
    background: #60a5fa;
    color: var(--white);
    border-radius: 8px;
    padding: 18px 22px;
    box-shadow: var(--shadow-xl);
    border: 2px solid rgba(255, 255, 255, 0.3);
    min-width: 140px;
}

.right-button:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 255, 255, 0.5);
    opacity: 0.9;
    background: #3b82f6;
}

.button-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.button-content svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.button-label {
    font-size: 13px;
    font-weight: 600;
    text-align: center;
    line-height: 1.4;
    white-space: nowrap;
}

/* Footer */
.main-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(30, 58, 138, 0.1);
    padding: 8px 20px;
    text-align: center;
    z-index: 5;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.main-footer p {
    font-size: 11px;
    color: var(--text-gray);
    margin: 2px 0;
}

.main-footer .signature-name {
    font-size: 12px;
    font-weight: 700;
    color: var(--primary-blue);
    margin: 2px 0 0 0;
}

/* Responsive Design */
@media (max-width: 1400px) {
    .main-container {
        padding: 40px 180px;
    }
}

@media (max-width: 1200px) {
    .main-container {
        padding: 40px 160px;
    }

    .button-left {
        left: 30px;
    }

    .button-right {
        right: 30px;
    }
}

@media (max-width: 1024px) {
    .main-container {
        padding: 20px 100px;
    }

    .content-area {
        padding: 30px 35px;
        max-width: 100%;
    }

    .button-left-container {
        left: 20px;
    }

    .button-right-container {
        right: 20px;
    }

    .pdf-button,
    .right-button {
        padding: 20px 22px;
    }

    .button-label {
        font-size: 13px;
    }
}

@media (max-width: 768px) {
    .left-banner {
        display: none;
    }

    .main-container {
        padding: 15px;
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 20px;
        overflow-y: auto;
    }

    .content-area {
        padding: 20px 18px;
        margin-bottom: 15px;
        max-width: 100%;
    }

    .logo-section {
        margin-bottom: 10px;
    }

    .logo-image {
        max-height: 100px;
    }

    .announcement-badge {
        font-size: 10px;
        padding: 5px 12px;
        margin-bottom: 10px;
    }

    .main-title {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .greeting-text {
        margin-bottom: 8px;
    }

    .greeting-text p {
        font-size: 14px;
    }

    .info-text {
        margin-bottom: 12px;
    }

    .info-text p {
        font-size: 13px;
        margin-bottom: 6px;
    }

    .info-box {
        padding: 12px 15px;
        margin: 10px 0;
    }

    .info-header {
        margin-bottom: 8px;
    }

    .info-header h3 {
        font-size: 12px;
    }

    .info-list li {
        font-size: 11px;
        padding: 4px 0;
        padding-left: 18px;
    }

    .links-intro {
        margin: 10px 0;
    }

    .links-intro p {
        font-size: 12px;
    }

    .button-left-container,
    .button-right-container {
        position: static;
        transform: none;
        margin: 8px 0;
        width: 100%;
        max-width: 100%;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .pdf-button,
    .right-button {
        padding: 16px 20px;
        min-width: auto;
        width: 100%;
    }

    .pdf-button:hover,
    .right-button:hover {
        opacity: 0.95;
    }

    .button-content {
        flex-direction: row;
        justify-content: center;
        gap: 8px;
    }

    .button-label {
        max-width: none;
        font-size: 13px;
    }

    .main-footer {
        padding: 10px 15px;
        position: relative;
    }

    .main-footer p {
        font-size: 11px;
    }

    .main-footer .signature-name {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .main-container {
        padding: 10px;
        padding-top: 15px;
    }

    .content-area {
        padding: 15px 12px;
    }

    .logo-image {
        max-height: 80px;
    }

    .announcement-badge {
        font-size: 9px;
        padding: 4px 10px;
    }

    .main-title {
        font-size: 16px;
        margin-bottom: 8px;
    }

    .greeting-text p {
        font-size: 13px;
    }

    .info-text p {
        font-size: 12px;
    }

    .info-box {
        padding: 10px 12px;
    }

    .info-header h3 {
        font-size: 11px;
    }

    .info-list li {
        font-size: 10px;
    }

    .links-intro p {
        font-size: 11px;
    }

    .pdf-button,
    .right-button {
        padding: 14px 18px;
    }

    .button-label {
        font-size: 12px;
    }

    .main-footer {
        padding: 8px 12px;
    }

    .main-footer p {
        font-size: 10px;
    }

    .main-footer .signature-name {
        font-size: 11px;
    }
}

/* Scrollbar Styling */
.main-container::-webkit-scrollbar {
    width: 8px;
}

.main-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.main-container::-webkit-scrollbar-thumb {
    background: rgba(30, 58, 138, 0.3);
    border-radius: 10px;
}

.main-container::-webkit-scrollbar-thumb:hover {
    background: rgba(30, 58, 138, 0.5);
}